OPINION
¶ 1 We granted review to answer the question whether a court may consider evidence extrinsic to the record to resolve the meaning of a judgment. We hold that the parol evidence rule does not apply to a judgment. For this and other reasons discussed below, the trial сourt and the court of appeals erred in concluding that the decree of dissolution established a fixed-term award. We thus remand this case for further proceedings with regard to the award and the payment of spousal maintenance.
FACTS AND PROCEDURAL HISTORY
¶2 In 1986, ten years after Bonnie and Mike Zale were married, Mrs. Zale was involved in an automobile accident that left her permanently incapacitated and unable to work. Four years later, Mr. Zale filed an action for dissolution of their marriage.
¶ 3 Upon stipulation of the parties, on October 10, 1991, the triаl court filed a minute entry, stating in part:
[Mr. Zale] shall pay spousal maintenance to [Mrs. Zale] in the sum of $600.00 per month, commencing November 15,1991 for a period of eighteen (18) months, after 18 months said payments to increase to $750.00 per month for a period of 18 *248 months and to terminate after the second period of 18 months;____
FURTHER ORDERED setting the matter for Review on Monday, November 21, 1994....
¶4 Eventually a decree drafted by Mr. Zale’s counsel, Robert Cimino, was sent to Mrs. Zale’s counsel at the time. The trial court notified the parties that it would sign the proposed decree absent an objection from Mrs. Zale. When no objection was filed, the court, on November 21,1991, entered the decree as drafted by Mr. Cimino. There were several discrepancies between the minute entry and the decree, including a different provision concerning spousal maintenance, which by the terms of the judgment stated in part:
FURTHER ORDERED that [Mr. Zale] shall pay spousal maintenance to [Mrs. Zale] in the sum of $600.00 per month for the first 18 months following signing of the decree; $750.00 per month thereafter;____ This spousal maintenance obligation shall be reviewed 36 months after thе signing of this decree.
¶ 5 Pursuant to the schedule provided in the judgment, a review hearing was held on November 21, 1994. Only Mr. Zale and his new counsel appeared. Although the trial court opined that spousal maintenance should end, it offered Mrs. Zale an opportunity to respond. Mrs. Zalе objected, asserting the need for an indefinite award of spousal maintenance because of her deteriorating health.
¶ 6 At a hearing on September 6, 1995, the trial court admitted evidence from Mrs. Zale, Mr. Zale and Mr. Cimino, each of whom testified regarding her or his understanding оf the duration of spousal maintenance. The court subsequently concluded that the decree provided for a fixed term of spousal maintenance, and it denied Mrs. Zale’s request to extend the award, stating that she had not shown “sufficient evidence of a substantial and cоntinuing change of circumstances from the time of the original award.”
¶ 7 Mrs. Zale appealed, arguing that the decree unambiguously provided for an indefinite award of spousal maintenance, that the trial court erred in considering evidence extrinsic to the decreе to determine the parties’ intent and that such evidence violated the parol evidence rule. The court of appeals affirmed, finding that the language of the decree was “reasonably susceptible” of Mr. Zale’s interpretation and that the admission of pаrol evidence was proper, relying on
Taylor v. State Farm Mutual Automobile Ins. Co.,
¶ 8 Mrs. Zale petitioned this court for review. She argues that parol evidence is not admissible to alter a judgment, whether the judgment is susceptible to Mr. Zale’s interpretation, whether the burden is on her to prove a change of circumstances and whether her alleged change of circumstances is an appropriatе issue for remand to the trial court.
DISCUSSION
A. Applicability of Parol Evidence Rule to Judgment
¶ 9 In
Taylor,
this Court discussed the application of the parol evidence rule to an insurance contract and whether evidence other than the written contract may be admitted to interpret the contract language.
¶ 10 However, it is error to conclude that the рarol evidence rule applies to judgments. A judgment is not an agreement between or among the parties. Rather, it is an “act of a court which fixes clearly the rights and liabilities of the respective parties to litigation and determines the controversy at hand.”
Wolf Corp. v. Louis,
¶ 11 Indeed, applying the parol evidence rule to a judgment would create a result contrary to the very rationale for a judgment. “A final judgment or decree deсides and disposes of the cause on its merits, leaving no question open for judicial determination.”
Decker v. City of Tucson,
¶ 12 The United States Supreme Court considered the res judicata effect of a lower сourt’s decree in
Lyon v. Perin and Gaff Manufacturing Co.,
¶ 13 The parol evidence rule has been erroneously applied by Arizona courts to judgments in the past.
Shaughnessy v. Shaughnessy,
¶ 14 To apply the parol evidence rule to a judgment allows an impermissible collateral attack. “Probing the mental processes of a trial judge, that are not apparent on the record of the trial proceedings, is not permissible.”
Hyden v. Law Firm of McCormick,
Courts have ruled that a judgment cannot be proved by parol evidence, such as the testimony of a judge of a former trial, where the record is the best evidence, e.g., Blue Mountain Iron and Steel Co. v. Portner,131 F. 57 (4th Cir.), cert. denied,195 U.S. 636 ,25 S.Ct. 793 ,49 L.Ed. 355 (1904); Rickard v. State,283 Ala. 534 ,219 So.2d 363 (1969); Hardeman v. State, 94 Tex. Cr.R. 642,252 S.W. 503 (1923); State v. Lee,103 W.Va. 631 ,138 S.E. 323 (1927); and such testimony is inadmissible to contradict or vary the terms of a judgment. E.g. Fayerweather v. Ritch,195 U.S. 276 ,25 S.Ct. 58 ,49 L.Ed. 193 (1904); Tung-Sol Lamp Works, Inc. v. Monroe,113 Vt. 228 ,32 A.2d 120 (1943).
People v. Tippett,
¶ 15 We conclude that the parol evidence rule, a rule of substantive contract law, does not apply to a judgment.
B. The Spousal Maintenance Award
¶ 16 Having concluded that the parol evidence rule does not apply to a judgment, we determine whether the decree, on its face, establishes a fixed or an indefinite award of spousal maintenance. As quoted above, the decree states that Mr. Zale “shall pay spousal maintenance to [Mrs. Zale] in the sum of $600.00 per month for the first 18 months following signing of decree; $750.00 per month thereafter;____ This spousal maintenance obligation shall be reviewed 36 months аfter the signing of this decree.”
¶ 17 The plain language of the decree portrays an indefinite award of spousal maintenance. First, there are no words of limitation following the phrase “$750.00 per month thereafter;____” There is no specified end to the duration. Second, to аssume that the court intended maintenance to end after 36 months renders meaningless the provision for a “review 36 months after the signing of this decree.”
See Stine v. Stine,
¶ 18 Further, Mr. Zale’s еfforts to compare and contrast the language of the minute entry with that of the decree are not persuasive. First, the reference to a separate document, the minute entry, is unnecessary given the language of the decree.
Cf. Benson v. State,
C. Burden of Proving Changed Circumstances
¶ 19 Because the decree establishes a spousal maintenance award of indefinite duration, we remand this case for the trial court’s reconsideration. Upon remand, it is Mr. Zale’s burden to demonstrate a change in Mrs. Zale’s circumstances.
Rainwater,
D. Attorneys’Fees
¶ 20 Mrs. Zale claims an entitlement to attorneys’ fees and costs on appeal pursuant to A.R.S. section 25-324 (Supp. 1997), which authorizes us to order one party to pay the fees and costs incurred by the other party in a domestic relations case after considering the parties’ relative financial resources. The purpose of the statute is to provide a remedy for- the party least able to pay.
Gore v. Gore,
CONCLUSION
¶ 21 We vacate the decision of the court of appeals, reverse the order of the trial court and remand this ease for a hearing at which Mr. Zale bears the burden of demonstrating Mrs. Zale’s changed circumstances аs of November 21, 1994. The court shall decide whether a modification of the spousal maintenance award is appropriate and, if so, to what degree. Should Mrs. Zale’s and Mr. Zale’s circumstances have changed significantly and if the evidence warrants, termination , of sрousal maintenance is, of course, permissible. Resolution of that matter, however, remains within the sound discretion of the trial court. A determination of attorneys’ fees and costs also is appropriate.
Notes
The Honorable Susan A. Ehrlich, Judge, Arizona Court оf Appeals, was authorized by the Chief Justice of the Arizona Supreme Court to participate in this matter pursuant to Article 6, Section 3 of the Arizona Constitution.
. Ariz. R. Civ. P. 60 is available to correct clerical and other mistakes in a judgment, as well as to provide other relief.
. However, in
Anderson v. State,
