Leases Lease Cost (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Lease, Cost [Abstract]
Operating Lease, Cost	$ 29,908
Variable Lease, Cost	4,889
Sublease Income	(577)
Lease, Cost	34,220
Operating Lease, Payments	31,223
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 22,948
Operating Lease, Weighted Average Remaining Lease Term	8 years 4 months 20 days
Operating Lease, Weighted Average Discount Rate, Percent	3.31%