Leases - Supplemental Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 22,888
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 25,878
Building And Equipment
Weighted Average Remaining Lease Term [Abstract]
Operating leases - building and equipment	9 years 7 months 9 days
Operating Lease, Weighted Average Discount Rate [Abstract]
Operating leases - vehicles	4.08%
Vehicles
Weighted Average Remaining Lease Term [Abstract]
Operating leases - building and equipment	1 year 11 months 1 day
Operating Lease, Weighted Average Discount Rate [Abstract]
Operating leases - vehicles	2.99%