Leases - Supplemental Cash Flow Related to Leases (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	$ 31,849
Operating cash flows from finance leases	587
Financing cash flows from finance leases	274
Right-of-use assets obtained in exchange for new or modified lease obligations:
Operating leases	21,933
Finance leases	$ 1,332