Leases - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease, right-of-use asset	$ 51,600	$ 89,000
Operating lease, liability	60,235	$ 89,000
Operating lease, payments	5,600
Operating lease, liability, current	$ 27,400
Weighted average remaining lease term	3 years 7 months 6 days
Discount rate	3.60%