OPINION OF THE COURT
Deptford Township School District appeals the District Court’s award of attorneys’ fees to H.B. and her parents E.B. and P.B. (Appellees) pursuant to the Individuals With Disabilities Education Act (IDEA). Because we conclude that Appellees were not the “prevailing party,” we will reverse.
I.
As we write exclusively for the parties, we recount only those facts essential to our decision.
H.B. is an autistic child who qualifies for educational services under the IDEA, 20 U.S.C. § 1400, et seq. H.B. began attending school in the Deptford Township School District on February 16, 1999. Shortly thereafter, H.B.’s parents met with her educational team to prepare an Individualized Education Program (IEP) for the upcoming school year. See 20 U.S.C. § 1414(d). After H.B.’s parents objected to the IEP proposed by the School District, its Special Services Director requested a mediation conference. The parents declined to mediate and filed a petition for due process with the New Jersey Office of Special Education. The matter was assigned to the Honorable John R. Futey (ALJ).
On December 6, 2000, the ALJ found that Deptford “failed to provide H.B. with a meaningful education” and ordered it to create “a full day in-district program in a regular education class” tailored to H.B.’s needs and to compensate the family for their costs in educating H.B. in the interim.
The School District appealed the ALJ’s decision to the United States District Court for the District of New Jersey on February 15, 2001. Over three months later, the School District requested a stay of enforcement of the ALJ’s decision, which the Court denied on November 2, 2001. Thereafter, the School District moved for summary judgment, arguing that the ALJ erred in finding that it failed to provide H.B. with a “free appropriate public education” (FAPE), 20 U.S.C. § 1412(a)(1), in the “least restrictive environment” (LRE), id. at § 1412(a)(5).
*124By order dated February 15, 2002, the District Court reversed the ALJ’s determination that Deptford failed to provide a FAPE to H.B., but agreed that it failed to do so in the least restrictive environment. Because no harm resulted from the lack of the LRE, however, the District Court granted no relief. The District Court required Appellees “to return the portion of the previous interim payment which had not been actually spent in reliance on the ALJ’s erroneous decision,” but permitted them “to retain funds spent in good faith reliance upon the ALJ’s determination” prior to its reversal.
Based solely on the fact that Appellees “were allowed to obtain and retain” compensation for interim services “to which Deptford had challenged their entitlement,” the District Court entered an order on March 31, 2006, deeming Appellees the “prevailing party” for purposes of 20 U.S.C. § 1415(i) (3) (B) (i) (I) and subsequently awarded them $98,550 in attorneys’ fees.
II.
We begin by noting that the School District’s principal argument is that Appellees were not entitled to attorneys’ fees because they did not prevail. For reasons unknown to the Court, Appellees fail to address this argument in their brief. Instead, Appellees rely exclusively on their argument that the School District cannot challenge the order of March 31, 2006, in which the District Court determined that Appellees were the “prevailing party,” because Deptford’s Notice of Appeal cites only the District Court’s December 22, 2006 order quantifying attorneys’ fees at $98,550. This argument betrays a fundamental misunderstanding of our precedents.
An award of attorneys’ fees is not a final, appealable order until the award is quantified. Frangos v. Doering Equip. Corp., 860 F.2d 70, 72 (3d Cir.1988); Pennsylvania v. Flaherty, 983 F.2d 1267, 1276 (3d Cir.1993). Under the merger doctrine, an appeal of a final award of attorneys’ fees includes appeal of all interlocutory orders relevant thereto. See In re Diet Drug Prods. Liab. Litig., 418 F.3d 372, 377 (3d Cir.2005).
In the present appeal, the Court’s interlocutory order, which designated the Appellees as the “prevailing party,” was directly relevant to the Court’s final order, which awarded fees in the amount of $98,500. See 20 U.S.C. § 1415(i)(3)(B)(i)(I). Consequently, the March 31 order merges into the December 22 order, and both are before us.
Generally, we review the grant of attorneys’ fees for an abuse of discretion. See P.N. v. Clementon Bd. of Educ., 442 F.3d 848, 852 (3d Cir.2006). Accordingly, we will reverse the award if it “rests upon a clearly erroneous finding of fact, an errant conclusion of law or an improper application of law to fact.” Id. (quoting Hanover Potato Prods., Inc. v. Shalala, 989 F.2d 123, 127 (3d Cir.1993)).
III.
Turning to the merits, we first note that there can be no doubt that Appellees achieved victory in the administrative proceedings. The ALJ ruled that the School District “failed to provide H.B. with a meaningful education” and ordered Dept-ford to create “a full day in-district program in a regular education class” tailored to H.B.’s needs. In addition, the ALJ ordered Deptford to compensate H.B.’s parents for their costs in educating H.B. in the interim.
After Appellees’ favorable decision at the administrative proceeding, the School District appealed, as was its right, to fed*125eral court. The District Court reversed the ALJ’s decision, stating:
[T]he only relief obtained by [Appellees] was to enforce compliance with the ALJ’s decision prior to the time it was partially reversed by this Court, and [Appellees] achieved no relief upon the aspect of the ALJ’s ruling that was affirmed (namely, failure to provide the LRE) because [Appellees] could demonstrate no harm. The [Appellees] achieved this Court’s interim award of $88,090.61, consistent with the ALJ’s determination and before its reversal, because Deptford had not timely sought a stay of same, but not because [Appellees] proved entitlement upon this record. When it turned out that the ALJ’s award was reversed in relevant part, and that no remedy was due for failure to provide the education in the least restrictive environment, the Court basically ordered [Appellees] to return the portion of the previous interim payment which had not been actually spent in reliance on the ALJ’s erroneous decision. [Appellees] were, however, allowed to retain funds spent in good faith reliance upon the ALJ’s determination prior to this Court’s various rulings, and to this extent, [Appellees] “prevailed,” that is, they were allowed to obtain and retain at least a part of the funds and benefits to which Deptford had challenged their entitlement. (Emphasis added.)
We find no abuse of discretion in the District Court’s factual findings, and we accept them in toto. See Fed.R.Civ.P. 52(a)(6). Therefore, we next consider whether the District Court committed legal error in holding that Appellees were the “prevailing party” under § 1415(i)(3)(B)(i)(D of the IDEA, which provides:
Award of attorneys’ fees ... In any action or proceeding brought under this section, the court, in its discretion, may award reasonable attorneys’ fees as part of the costs ... to a prevailing party who is the parent of a child with a disability.
In a seminal decision regarding attorneys’ fees, the Supreme Court held that a party is not a “prevailing party” unless it “prevailed on the merits of at least some ... claims,” or received “at least some relief on the merits.” Buckhannon Bd. & Care Home, Inc. v. West Virginia Dept. of Health & Human Res., 532 U.S. 598, 603, 121 S.Ct. 1835, 149 L.Ed.2d 855 (2001) (internal quotation and citation omitted).1 Purely technical or de minimis success is insufficient. Texas State Teachers Ass’n v. Garland Indep. Sch. Dist., 489 U.S. 782, 792, 109 S.Ct. 1486, 103 L.Ed.2d 866 (1989). Likewise, preliminary or interim success unaccompanied by ultimate success of some kind is generally insufficient. See People Against Police Violence v. City of Pittsburgh, 520 F.3d 226, 234 (3d Cir.2008) (indicating that where initial relief proves fleeting, attorneys’ fees are inappropriate).
Indeed, last Term the Supreme Court held that “[prevailing party status ... does not attend achievement of a preliminary injunction that is reversed, dissolved, or otherwise undone by the final decision in the same case.” Sole v. Wyner, - U.S. -, 127 S.Ct. 2188, 2195, 167 L.Ed.2d 1069 (2007). In a similar vein, we have observed that “when a judgment in favor of a [party] is reversed on the merits, that party is no longer a ‘prevailing party’ ... and no longer entitled to attor*126ney’s fees.” Clark v. Twp. of Falls, 890 F.2d 625, 626 (3d Cir.1989) (emphasis added).
Applying these principles to the instant appeal, we disagree with the District Court’s conclusion that Appellees achieved prevailing party status under § 1415(i)(3)(B)(i)(I) of the IDEA because they were not required to return that portion of the ALJ’s interim award which they had already spent. The fact that Appellees achieved only temporary relief requires judgment in favor of the School District because such relief is not equivalent to final relief on the merits. See John T., 318 F.3d at 556, 559; J.O. v. Orange Twp. Bd. of Educ., 287 F.3d 267, 274 (3d Cir.2002). As noted, the District Court expressly concluded that Appellees failed to prove their entitlement to relief on the merits. Without such a victory, Appellees cannot be considered the “prevailing party.” See Buckhannon, 532 U.S. at 603, 121 S.Ct. 1835; Sole, 127 S.Ct. at 2196.2
For the foregoing reasons, we will reverse the order of the District Court awarding fees and remand for judgment to be entered in favor of Deptford Township School District.