This case lies at the intersection of evolving circuit jurisprudence on judicial review of employee disability claims under the Employee Retirement Income Security Act (“ERISA”). Pamela A. Ray, a partner at a national law firm, filed suit against UNUM Life Insurance Company of America (“UNUM”) under ERISA, 29 U.S.C. § 1132, seeking long-term disability benefits pursuant to her firm’s disability plan. After a bench trial, the United States District Court for the District of Colorado granted judgment in favor of Ray on the ground that UNUM’s decision to deny her claim for benefits was arbitrary and capricious. We must address whether the district court applied the correct standard of judicial review to UNUM’s benefits determination. We exercise jurisdiction pursuant to 28 U.S.C. § 1291, and reverse and remand for further proceedings.
I
Ray was a partner in the law firm of Gibson, Dunn & Crutcher from 1982 until 1994, handling large-scale real estate transactions. Gibson, Dunn & Crutcher sponsored an employee disability benefits plan (“Plan”) governed by ERISA and funded, in part, by a Group Long Term *484 Disability Insurance Policy issued by UNUM. Ray participated in the Plan.
Under the terms of the Plan, when UNUM receives proof that an insured is disabled, it will pay monthly disability benefits to the insured for the period of disability. 1 An insured is disabled if he or she can not perform each of the material duties of his or her regular occupation— for attorneys, “regular occupation” denotes the speciality 2 practiced by the attorney before the disability ensued.
In the winter of 1993, Ray began to experience symptoms that she reported as including a dry cough, sinus headaches, and fatigue. We are told her symptoms worsened while she was at the law firm’s office and improved when she was away from the office. According to Ray, her fatigue and headaches were severe by the end of the work week. Ray sought medical care from various physicians and underwent multiple diagnostic tests. She also attempted to alleviate her condition at work by using an air filter in her office, switching offices in the same building, and switching to a different and temporary office building. Ray also tried to work at home, but claims she was unable to conduct her practice as a “large-scale” real estate attorney away from the office. In June of 1994, Ray filed a claim with UNUM for long-term disability benefits. Her claim was based on an inability to continue working because of “severe fatigue, headaches, dizziness, chest pain, [and] allergic reaction to chemicals.” (Ap-pellee’s Br. at 10.)
Acting on Ray’s claim for benefits, UNUM requested medical records from Ray’s treating physicians, consulted with a UNUM physician, met in person with Ray, and interviewed the managing partner at her law firm. On November 30, 1994, UNUM denied Ray’s claim for disability benefits, primarily because it found that Ray retained the functional capacity to work as a real estate lawyer, at least at home or in other locations.
Ray thrice appealed UNUM’s decision. With her second appeal, Ray included additional material to supplement her claim and also inquired into what further information she could provide to assist UNUM in its decision. UNUM referred Ray’s claim for further medical review, and brought her benefits up to date while continuing its investigation. UNUM proceeded to conduct surreptitious video surveillance while reevaluating her medical condition; according to UNUM, the video showed Ray consistently engaging in physical activities including entering various buildings, driving, running errands, and working at a five-day alpaca conven *485 tion. UNUM thereafter denied her second appeal on July 19, 1996. After Ray’s third appeal, another UNUM physician reviewed her claim, recommended a multidisciplinary review of all her medical records, and suggested an evaluation by the University Disability Consortium (“UDC”) in Boston. UNUM thereafter sought medical review from a three-physician panel and offered Ray an in-person independent medical examination by the UDC.
Ray declined UNUM’s offer to send her to Boston and filed suit on March 19, 1997, challenging UNUM’s decision to deny her claim for benefits. On September 5, 1997, the parties filed cross-motions for summary judgment, which were denied. Via telephone status conference, the district court ordered the parties to submit “findings of fact and conclusions of law” for the purposes of a bench trial (3 Appellant’s App. at 1028), to be conducted pursuant to an arbitrary and capricious standard of judicial review. Following a bench trial, the district court held that UNUM’s decision to deny Ray’s claim was arbitrary and capricious. Finding a conflict of interest, indicia of bad faith and a lack of substantial evidence to support UNUM’s decision, the district court concluded that Ray was entitled to disability benefits under the Plan. UNUM appeals, arguing that the district court misapplied the arbitrary and capricious standard, and that given the correct amount of deference, its decision to deny Ray benefits must be upheld.
II
Of primary importance is whether the district court erred in applying the arbitrary and capricious standard of judicial review. A district court’s determination of the proper standard to apply in its review of an ERISA plan administrator’s decision is a legal conclusion we review de novo.
Hoover v. Provident Life & Accident Ins. Co.,
A
Firestone Tire & Rubber Co. v. Bruch,
The district court employed the arbitrary and capricious standard in its review of UNUM’s decision but unfortunately did not shed light on where in the Plan it found UNUM’s discretionary powers. Our recent decision in
Nance v. Sun Life Assurance Co. of Can.,
We recognize that the parties did not raise the issue of whether UNUM had discretionary authority over Ray’s claim either before the district court or in then-appeal briefs. 3 As best we can tell from the record, both the parties and the court simply accepted that UNUM’s decision was entitled to deferential review without delving into the reason or basis for this assumption. A footnote in Ray’s appellate brief obliquely mentions that the Plan does not contain broad discretionary language but the requirement of “proof’ in the Plan “has been assumed to bring this case within the ‘arbitrary and capricious’ standard of review.” (Appellee’s Br. at 38.) Ray brought the standard of review issue to our attention for the first time when she listed Nance in her Citation of Supplemental Authorities. Following discussion of Nance at oral argument, we ordered the parties to submit supplement briefs addressing what effect, if any, Nance should have on our disposition of this appeal.
In its supplemental brief, UNUM argues that Nance should not affect our review because “[u]nder the doctrines of invited error and/or waiver, Plaintiff is now barred from challenging the standard of review applied by the district court.” (Appellant’s Supp. Br. at 1.) Ray argues that we should exercise our discretion and “apply Nance even though the standard of review was not challenged in the district court.” (Ap-pellee’s Supp. Br. at 2.)
First, UNUM’s invited error argument is misplaced. “The invited error doctrine prevents a party from inducing action by a court and later seeking reversal on the ground that the requested action was error.”
Zink Co. v. Zink,
*487
Second, UNUM’s waiver argument is unavailing. Generally, a party’s failure to raise an issue in the district court precludes its review on appeal.
Proctor & Gamble Co. v. Haugen,
B
Our foregoing conclusion requires us to decide whether we should conduct de novo review or remand to the district court for that purpose. Although we have yet to address the matter, our sibling courts of appeals in the Fourth, Sixth, and Ninth Circuits have recently been confronted with similar situations in ERISA cases.
See Gallagher v. Reliance Standard Life Ins. Co.,
Our judgment is guided by our recent decision in
Hall v. UNUM Life Ins. Co. of Am.,
the best way to implement ERISA’s purposes in this context is ordinarily to restrict de novo review to the administrative record, but to allow the district court to supplement the record when circumstances clearly establish that additional evidence is necessary to conduct an adequate de novo review of the benefit decision.
By utilizing an arbitrary and capricious standard, rather than a de novo standard, the district court in the case at issue necessarily did not consider evidence outside the administrative record. For example, the district court found that the three-physician panel report (consisting of specialists in internal medicine, allergies, and psychiatry) issued by the UDC was not part of the record, and consequently did not consider it. This being the situation, and given our decision that we can not conduct adequate de novo review at this level (as have other circuits, named above) without the benefit of such additional report and/or other further medical reports, we must remand. Our remand allows the district court to consider such additional evidence as in its discretion it finds necessary for adequate de novo review, including court-appointed expert reports if it determines them helpful.
Ill
The district court’s opinion is REVERSED and the matter is REMANDED for further proceedings consistent with this opinion.
Notes
. The Plan provides, in pertinent part:
When the Company receives proof that an insured is disabled due to sickness or injury and requires the regular attendance of a physician, the Company will pay the insured a monthly benefit after the end of the elimination period. The benefit will be paid for the period of disability if the insured gives to the Company proof of continued:
(1) disability; and
(2) regular attendance by a physician.
The Plan defines “disability” and "disabled” as follows:
“Disability” and “disabled” mean that because of injury or sickness the insured cannot perform each of the material duties of his regular occupation.
Note: For attorneys, “regular occupation” means the specialty in the practice of law which the insured was practicing just prior to the date disability started.
(1 Appellant's App. at 263-65.)
. The question of whether "major transaction real estate mining and oil and gas lawyer [sic]” is a recognized specialty under the Plan, or otherwise, has not been presented to us. (Appellee’s Br. at 35.) We do not reach the issue.
. Ray’s complaint requests "trial de novo of the merits” of her claim, but in the next paragraph alleges that UNUM’s actions were arbitrary and capricious. (1 Appellant’s App. at 14.) Nowhere in the record does Ray develop whether UNUM does or does not have discretionary power under the Plan.
