Leases - Operating Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating leases
Right-of-use assets obtained in exchange for new operating lease upon adoption of ASC 842		$ 88,299
Cash paid for amounts included in the measurement of lease liabilities	$ 43	$ 4,412
Weighted-average remaining lease term of operating leases (in years)	10 years	5 years 8 months 12 days
Weighted-average discount rate of operating leases (as a percent)	5.80%	6.70%