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Accounts Payable and Accrued Expenses
9 Months Ended
Sep. 30, 2021
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Expenses Accounts Payable and Accrued Expenses
Accounts payable and accrued expenses consist of the following as of December 31, 2020 and September 30, 2021 (in thousands):
December 31, 2020September 30, 2021
Trade payables$64,049 $57,687 
Accrued compensation and benefits33,160 32,897 
Accrued student obligations4,017 9,262 
Other3,516 3,537 
Accounts payable and accrued expenses$104,742 $103,383