Leases - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Operating cash outflows resulting from payments of operating lease liabilities	$ 9,560	$ 10,597
New operating lease assets recognized during the period	$ 1,218	$ 7,175
Maximum | Facility Leases
Lessee, Lease, Description [Line Items]
Extended lease term	10 years
Maximum | Vehicle And Office Equipment Leases
Lessee, Lease, Description [Line Items]
Lease terms	6 years
Remaining lease term	3 years
Maximum | Merchant Space Leases
Lessee, Lease, Description [Line Items]
Lease terms	5 years
Minimum | Facility Leases
Lessee, Lease, Description [Line Items]
Lease terms	11 years
Extended lease term	5 years
Minimum | Vehicle And Office Equipment Leases
Lessee, Lease, Description [Line Items]
Lease terms	4 years
Minimum | Merchant Space Leases
Lessee, Lease, Description [Line Items]
Lease terms	1 year