Leases - Other Lease Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Cash outflows for amounts included in the measurement of lease liabilities	$ 21,491
Right-of-use assets obtained in exchange for lease obligations	$ 21,759
Weighted-average remaining lease term (in years)	4 years 8 months 4 days
Weighted-average discount rate	2.10%