Leases Supplemental Balance Sheet Lease information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 46,571	$ 34,465
Operating Lease Supplemental Balance Sheet Information [Line Items]
Operating Lease, Liability, Noncurrent		28,896
Operating Lease, Liability	$ 49,759	$ 36,258
Operating Lease, Weighted Average Remaining Lease Term	6 years 8 months 12 days	6 years
Operating Lease, Weighted Average Discount Rate, Percent	5.02%	5.57%
Other Noncurrent Liabilities [Member]
Operating Lease Supplemental Balance Sheet Information [Line Items]
Operating Lease, Liability, Noncurrent	$ 41,019
Accrued Liabilities
Operating Lease Supplemental Balance Sheet Information [Line Items]
Operating Lease, Liability, Current	$ 8,740	$ 7,362