Leases (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Cumulative Effect of New Accounting Principle in Period of Adoption		$ 0.2
Operating Lease, Cost	$ 52,317,000
Variable Lease, Cost	6,584,000
Short-term Lease, Cost	17,387,000
Lease, Cost, Total	$ 76,288,000