Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Lessee, Lease, Description
Remaining lease terms (in years)	12 years
Operating lease costs	$ 50,400	$ 47,100
Operating lease payments	49,000	44,400
Short-term lease expense	800	2,300
Sublease income	1,300	$ 700
Impairment charges	$ 5,100
Weighted average discount rate (in percentage)	7.11%	7.24%
Weighted average lease term (in years)	8 years 2 months 12 days	8 years 9 months 18 days
Right-of-use assets	$ 190,469	$ 201,661		$ 178,800
Right-of-use liabilities	$ 29,468	$ 27,184
Operating Lease, Liability, Current, Statement of Financial Position	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Right-of-use liabilities, non-current	$ 218,629	$ 227,942
Rent expense, under 842	$ 49,900	$ 49,400
Rent expense, before 842			$ 42,600
Minimum
Lessee, Lease, Description
Remaining lease terms (in years)	1 year
Options to extend leases (in years)	5 years
Maximum
Lessee, Lease, Description
Options to extend leases (in years)	10 years