Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Subject to amortization
Accumulated amortization	$ (135,703)	$ (78,389)
Net	67,158
Total
Intangible assets, gross	462,123	351,400
Intangible assets, net	326,420	273,011
Trade names
Not Subject to amortization
Indefinite-lived intangible assets	259,262	185,400
Student relationships
Subject to amortization
Gross carrying amount	202,861	166,000
Accumulated amortization	(135,703)	(78,389)
Net	$ 67,158	$ 87,611