Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Right-of-use asset, net	$ 66,100
Operating lease liability	78,911
Current operating lease liability	14,300
Noncurrent operating lease liability	64,600
Lease cost	$ 4,400
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Right-of-use asset, net		$ 55,900
Operating lease liability		$ 65,500
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	30 years