Lease Commitments - Supplemental Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 4,908
Operating cash flows from operating leases	$ 21,366
Weighted-average remaining lease term — operating leases	6 years 2 months 12 days
Weighted-average discount rate — operating leases	4.70%