Goodwill and Intangible Assets - Additional Information (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2019 reportingUnit	Jun. 30, 2019 reportingUnit	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill			$ 609,457	$ 609,457	$ 609,457
Goodwill, accumulated impairment loss			712,800	712,800
Goodwill, tax deductible amount			44,000
Number of reporting units | reportingUnit	2	1
Impairments			0	0	0
Definite-lived intangible assets, net			31,777	147,480	312,242
Definite-lived intangible asset impairment			0	0
Amortization expense			$ 115,613	$ 166,350	$ 220,900