Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Lessee, Lease, Description
Remaining lease terms	12 years		12 years
Operating lease costs	$ 12,500	$ 11,700	$ 25,000	$ 22,600
Operating lease payments			23,900	21,800
Short-term lease expense	300	500	700	1,300
Sublease income	$ 300	400	$ 200	400
Weighted average discount rate (in percentage)	7.24%		7.24%		7.24%
Weighted average lease term	8 years 4 months 24 days		8 years 4 months 24 days		8 years 9 months 18 days
Right-of-use assets	$ 191,177		$ 191,177		$ 201,661
Operating lease liability, current	29,400		29,400		27,200
Right-of-use liabilities, non-current	215,465		215,465		$ 227,942
Rent expense, under 842	$ 12,500	$ 12,000	$ 25,000	$ 23,700
Minimum
Lessee, Lease, Description
Remaining lease terms	1 year		1 year
Options to extend leases	5 years		5 years
Maximum
Lessee, Lease, Description
Options to extend leases	10 years		10 years