Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$ 11,404	$ 8,240
Non-cash operating activities:
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 533	$ 152,142