Lease Commitments - Additional Information (Details)	12 Months Ended
	Dec. 31, 2019 property lease
Lessee, Lease, Description [Line Items]
Number of leased properties | property	10
Number of leases expired	2
Number of equipment leases	3
Number of automobile leases	41
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms	5 years 6 months