Leases Lease Balance Sheet - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Operating Lease, Right-of-Use Asset			$ 92,700
Operating Lease, Liability	$ 99,046	$ 88,521	$ 93,500
Other Noncurrent Assets [Member]
Operating Lease, Right-of-Use Asset	98,624	87,317
Other Current Liabilities [Member]
Operating Lease, Liability, Current	29,216	27,584
Other Noncurrent Liabilities [Member]
Operating Lease, Liability, Noncurrent	$ 69,830	$ 60,937