At May 31, 2021, the carrying value of our financial instruments approximated their fair values. The fair values of our contingent consideration liabilities from previous business acquisitions are considered “Level 3” measurements because we use various estimates in the valuation models to project the timing and amount of future contingent payments. The fair value of the contingent consideration liabilities from the acquisitions of Jhana Education (Jhana) and Robert Gregory Partners (RGP) changed as follows during the quarter and three quarters ended May 31, 2021 (in thousands):

At each quarterly reporting date, we typically estimate the fair value of our contingent liabilities from both the Jhana and RGP acquisitions through the use of Monte Carlo simulations. However, the RGP contingent consideration measurement period ended on May 31, 2021 and the fair value of the final contingent payment was measured using the specified performance objectives in the purchase agreement rather than a Monte Carlo simulation. Based on the timing of expected payments, $1.2 million of the Jhana and all of the RGP contingent consideration liabilities were recorded as components of accrued liabilities at May 31, 2021. The remaining $1.1 million of the Jhana contingent consideration liability is reported in other long-term liabilities. Adjustments to the fair value of our contingent consideration liabilities are included in selling, general, and administrative expense in the accompanying condensed consolidated statements of operations and comprehensive income (loss).