Leases Leases Cash Flow (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 29,946
Operating cash flows from finance leases	117
Financing cash flows from finance leases	678
Right-of-use asset obtained in exchange for operating leases	24,687
Right-of-use asset obtained in exchange for finance leases	$ 55,806