Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use assets, net	$ 78,386	$ 0
Other current liabilities	16,161
Operating lease liabilities	67,024	$ 0
Total operating lease liability	$ 83,185
Weighted average remaining lease term - Operating leases	6 years
Weighted average discount rate - Operating leases	4.90%