Twо corporations, one based in Massachusetts, and the other in Michigan, entered into a business arrangement (the Agreement). After a falling-out, one of the contracting parties, PowerShare, Inc., commenced a civil action in the district court to enforce the Agreement. The defendant, Syntel, Inc., countered by instituting a parallel arbitration proceeding and moving to stay litigation pending arbitration. The district court denied the motion, and Syntel now appeals. We have jurisdiction pursuant to the Federal Arbitration Act to review the interlocutory order denying Syntel’s motion to stay litigation pending arbitration.
See
9 U.S.C. § 16(a)(1)(A);
Combined Energies v. CCI, Inc.,
The question that lies at the heart of the appeal is whether the Agreement contains a mandatory arbitration provision. The district court thought not. We hold that the Agreement does so provide and therefore reverse. Along the way, we address, as a matter of first impression at the federal appellate level, an issue concerning the standard of review to be applied by a district judge when reviewing a magistrate judge’s disposition of a motion to stay litigation pending the completion of a parallel arbitration proceeding.
I. BACKGROUND
PоwerShare and Syntel entered into the Agreement on July 16, 2003. Their evident purpose was to form a joint venture to handle the outsourcing needs of third parties. Paragraph 18 of the Agreement reads in relevant part: 1
All disputes, controversies and claims directly or indirectly arising out of or in relation to this Agreement or the validity, interpretation, performance, breach, enforceability of the Agreement (collectively referred to as “Dispute”) shall be resolved amicably between Syntel and PowerShare at an operational level in consultation with the top management of both companies. If any such Dispute cannot be resolved, as stated above, the same shall be settled in accordance with the principles and procedures of the Amеrican Arbitration Association and per the decision of an accredited arbitrator acceptable to both parties. Nothing in this clause shall prejudice Syntel or PowerShare’s right to seek injunctive *13 relief or any other equitable/legal relief or remedies available under law.
Some five years after the execution of the Agreement, a dispute arose. On August 8, 2008, PowerShаre invoked diversity jurisdiction, 28 U.S.C. § 1332(a), and filed suit against Syntel, claiming breach of the Agreement, in the United States District Court for the District of Massachusetts. PowerShare accompanied its complaint with a request for jury trial. See Fed. R.Civ.P. 38(b).
In response, Syntel lodged a demand for arbitration with the American Arbitration Association (AAA). It simultaneously moved in the district court to stay PowerS-hare’s action pending resolution of the parallel arbitration proceeding. Not to be outdone, PowerShare filed a motion to stay the arbitration.
The district court assigned the motions to a magistrate judge, who denied Syntel’s motion to stay the litigation and granted PowerShare’s cross-motion to stay the arbitration.
PowerShare, Inc. v. Syntel, Inc.,
Syntel appealed this decision to the district judge, Fed R. Civ. P. 72(a), who issued an electronic order stating that the decision was “not clearly erroneous or contrary to law.” This timely , appeal followed.
II. ANALYSIS
We divide our analysis into two parts. First, we clarify the standard of review to be employed by a district judge when reviewing a magistrate judge’s order on a motion to stay litigation pending the resolution of a parallel arbitration proceeding. Only then do we proceed to the merits.
A.
The Federal Magistrates Act confers authority upon district judges to designate magistrate judges to hear pretrial motions. 28 U.S.C. § 636(b)(1). Magistrate judges serve as aides to, and under the supervision of, district judges; but magistrate judges are not themselves Article III judicial officers. Given their status as Article I judicial officers, magistrate judges ordinarily may not decide motions that are dispositive either of a case or of a claim or defense within a case.
2
This is so because “[t]he Constitution requires that Article III judges exercise final decisiоnmaking authority.”
Ocelot Oil Corp. v. Sparrow Indus.,
Consistent with this dichotomy between dispositive and non-dispositive motions, *14 Federal Rule of Civil Procedure 72 sets out two separate standai'ds of review to be employed by a district judge in reviewing a magistrate judge’s determinations. When а magistrate judge decides a non-dispositive motion, the district judge may, given a timely appeal, set aside the order if it “is clearly erroneous or is contrary to law.” Fed.R.Civ.P. 72(a). Absent a timely appeal, the order stands. Id. When, however, a magistrate judge passes upon a dis-positive motion, he or she may only issue a recommended decision, and if there is a timely objection, the district judge must engage in de novo review. Fed.R.Civ.P. 72(b). Absent a timely objection, the recommended decision ripens into an order. Id.
Here, the district judge employed the “clearly erroneous or contrary to law” standard applicable to non-dispositive motions under Rule 72(a). Syntel protests that its motion to stay the litigation to allow resolution of the parallel arbitration proceeding was, in effect, dispositive of the court case and, thus, should have engendered de novo review by the district judge pursuant to Rule 72(b).
No court of appeals has decided this precise question. Nevertheless, a number of district courts have held that motions to stay litigation and compel related arbitration are non-dispositive motions under Rule 72(a).
See, e.g., Gonzalez v. GE Group Adm’rs, Inc.,
Motions to stay litigation pending the resolution of parallel arbitration proceedings are not among the motions enumerated in 28 U.S.C. § 636(b)(1)(A). Nor are they of the same character as the listed motions. A federal court’s ruling on a motion to stay litigation pending arbitration is not dispositive of either the case or any claim or defense within it. Although granting or denying a stay may be an important step in the life of a case (lawyers are keenly aware that there are substantive consequences to whether or not a stay is granted), in the last analysis a stay order is merely suspensory. Even if such a motion is granted, the court still retains authority to dissolve the stay or, after the arbitration has run its course, to make orders with respect to the arbitral award.
See
Federal Arbitration Act, 9 U.S.C. § 9 (permitting parties to apply to the court for an order confirming the award);
id.
§ 10 (providing district courts with authority to vacate an arbitral award);
id.
§ 11 (providing district courts with authority to modify an arbitral award). We acknowledge that the scope of judicial review of arbitral awards is very narrоw, but that does not extinguish such review.
See Advest, Inc. v. McCarthy,
In light of these realities, we conclude that, from a procedural standpoint, the district judge acted appropriately in reviewing the magistrate judge’s denial of Syntel’s motion to stay under the “clearly erroneous or contrary to law” standard elucidated in Rule 72(a).
In this case arbitrability depended on interpreting a contractual term, a question of law for the courts.
See Com
*15
bined Energies,
To complete the picture, we limn the standard of review at this lеvel. Here, too, the purely legal nature of the question controls: we, like the district court, must afford de novo review to the purely legal question of whether the Agreement provides for mandatory arbitration of the parties’ dispute.
See Osband v. Woodford,
B.
Arbitration is a matter of contract.
First Options of Chi., Inc. v. Kaplan,
In construing a contract governed by federal common law, courts must be guided by common-sense rules of contract interpretation.
Smart v. Gillette Co. Long-Term Disab. Plan,
Syntel contends that this policy creates a presumption of arbitrability here. PowerShare demurs, relying principally on our decision in
Paul Revere Variable Annuity Insurance Co. v. Kirschhofer,
Despite the parties’ importunings, we need not decide whether the federal policy favoring arbitration applies here. Even if we assume that the presumption does not affect the decisional calculus, the plain language of the Agreement mandates arbitration. Thus, the applicability vel non of the presumption makes no ultimate difference.
With this question set to one side, we go directly to the language of the Agreement itself. Paragraph 18, quoted above, sets out the mechanisms for resolving disputes between the parties. The first sentence *16 provides that all disputes “shall be resolved amicably between Syntel and PowerShare.” The second sentence provides that if a dispute cannot be resolved amicably, it “shall be settled in accordance with the principles and procedures of the American Arbitration Association and per the decision of an accredited arbitrator.” The third sentenсe states that “[n]othing in this clause shall prejudice Syntel or PowerS-hare’s right to seek injunctive relief or any other equitable/legal relief or remedies available under law.”
In deciding whether this language mandates arbitration, we are mindful that “an interpretation which gives effect to all the terms of a contract is preferable to one that harps on isolated provisions, heedless of context.”
Blackie v. Maine,
PowerShare urges us to focus on the third sentence of Paragraph 18 and to read that sentence as reserving to the parties the right to pursue remedies at law (that is, the right to litigate in court). In order to square this interpretation with the second sentence of Paragraph 18, PowerShare suggests that the parties intended arbitration to be an optional mechanism for dispute resolution.
Although PowerShare’s interpretation of the third sentence may be plausible when read in isolation, that interpretation cannot be reconciled with the unvarnished language of Paragraph 18’s second sentеnce. That sentence states explicitly that disputes between the parties “shall” be settled through arbitration. The word “shall” denotes obligation, not choice; therefore, accepting PowerShare’s interpretation of the third sentence would drain the second sentence of its essential meaning. Put bluntly, the word “shall” in the second sentence would be rendered nugatory were we to read the arbitration provision as creating nothing more than an option. That PowerShare’s interpretation of Paragraph 18 would negate the obvious meaning of the second sentence is a powerful argument against accepting that interpretation.
See Mastrobuono v. Shearson Lehman Hutton, Inc.,
We conclude that the only sensible reading of Paragraph 18 is that the second sentence mandates arbitratiоn and the third sentence furnishes the arbitrator with broad legal and equitable powers should either party seek special kinds of relief (say, an injunction). This is the only plausible interpretation of the third sentence that fits with, and gives effect to, the plain meaning of the second sentence. 3
*17 In an endeavor to deflect the force of this reasoning, PowerShare argues that a jury trial is a “remеdy” preserved in the third sentence. It says that because only a court can implement such a remedy, the interpretation that we propose must be incorrect.
This argument is unconvincing. Unlike the second sentence, which plainly mandates arbitration, the reference in the third sentence to “any other equitable/legal relief or remedies available under law” never mentions jury trials (or, for that matter, recourse to the courts). Moreover, there is no textual support for a belief that this reference necessarily includes jury trials.
PowerShare tries to counter-punch by citing a pair of decisions holding that “remedies” include “jury trials.” But some words mean different things in different contexts,
see United States v. Romain,
In the еnd, we come full circle. Reading the “remedies” language in the third sentence to allow access to a jury trial would place this provision at cross purposes with the mandatory arbitration provision spelled out in the second sentence. That would violate one of the cardinal rules of contract interpretation: “that a document should be read to give effect to all its provisions and to render them consistent with each other.”
Mastrobuono,
PowerShare tries to turn this principle to its advantage. It asserts that our reading of the third sentence — to afford the arbitrator broad power to dispense legal and equitable remedies — renders that sentence superfluous because, under the AAA’s rules, an arbitrator already has those powers. As support for this assertion, PowerShare identifies Rule 34(a) of the AAA’s Commercial Arbitration Rules, which allows an arbitrator to “take whatever interim measures he or she deems necessary.”
*18 Here, however, the parties went beyond Rule 34(a); they аgreed to vest in the arbitrator broad powers extending to the arbitrator’s final decisionmaking, not just powers in connection with interim relief. The “remedies” provision, read in this way, is not superfluous but, rather, makes perfect sense. In commercial arbitration cases, the scope of a final award is governed by Rule 43(a), which provides that the arbitrator “may grant any remedy or relief that thе arbitrator deems just and equitable and within the scope of the agreement of the parties ” (emphasis supplied). Because an arbitrator’s power to award relief can be shaped by the parties’ agreement, it is reasonable — and certainly not redundant — for the parties to clarify that the person arbitrating their disputes will be free to choose from the widest possible array of remedies. Consequently, PowerShare’s superfluity argument fails.
The short of it is that the Agreement as a whole admits of only one reasonable interpretation: the parties are obliged to submit their disputes to arbitration.
See Fashion House,
III. CONCLUSION
We need go no further. For the reasons elucidated above, we reverse the decision appealed from and remand the case to the district court for the entry of an order staying the litigation pending the resolution of the parallel arbitration proceeding, dissolving the existing stay of arbitration, and making such other provisions consistent with this opinion, as the district court may deem meet.
Reversed and remanded.
Notes
. The parties agree that other material at the beginning and end of Paragraph 18 is, for present purposes, uncontroversial. We thus quote the three relevant sentences of the paragraph and henceforth refer to them as the ''first,” ''second,” and "third” sentences. This practice emulates what the parties have done.
. We say “ordinarily” because there is an exceрtion for cases in which all parties consent. See 28 U.S.C. § 636(c); Fed.R.Civ.P. 73. The record reveals no such consent here.
. Other courts have reached similar conclusions.
See, e.g., Laughton v. CGI Techs. & Sol'ns, Inc.,
