Leases and Other - Components of Least Expenses (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Finance lease cost:
Amortization of right-of-use assets		$ 918	$ 589
Interest on lease liabilities		417	67
Operating lease cost		6,727	5,992
Short-term lease cost		310	215
Variable lease cost		1,699	1,815
Sublease income	[1]		(172)
Total lease cost, net		$ 10,071	$ 8,506

[1]   Sublease income excludes rental income from owned assets, which is recorded in revenue.