Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 79,773	$ 0
Operating Lease, Liability, Current	17,049
Operating Lease, Liability, Noncurrent	$ 68,919	$ 0
Operating Lease, Weighted Average Remaining Lease Term	5 years 10 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	4.90%