Right-of-Use Asset and Lease Liabilities - Supplemental Cash Flows (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 28,291
Operating cash flows from finance leases (interest)	687
Financing cash flows from finance leases	$ 5,646
Weighted Average Remaining Lease Term [Abstract]
Operating leases	6 years 1 month 6 days
Finance leases	3 years
Weighted Average Discount Rate [Abstract]
Operating leases	5.50%
Finance leases	5.30%