Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Trade payables	$ 57,860	$ 47,503
Accrued compensation and benefits	25,525	33,924
JWMI license payment (see Note 8)	25,343	0
Accrued student obligations	3,957	4,580
Real estate liabilities	441	751
Other	2,703	4,070
Accounts payable and accrued expenses	$ 115,829	$ 90,828