Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Operating Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 101,379	$ 155,700		$ 194,100
Operating Lease, Cost	42,368	48,387
Variable Lease, Cost	13,412	172
Operating Lease, Payments	43,582	46,324
Operating Leases, Rent Expense	49,619	61,283	$ 58,332
Operating Leases, Rent Expense, Contingent Rentals	46	138	$ 516
Short-term Lease, Cost	238	239
Sublease Income	562	644
Lease, Cost	55,456	48,154
Lease Liability	132,849	$ 171,796		$ 209,000
Lease Modification Expense	12,064
Operating Lease, Impairment Loss	$ 22,183