Other Assets - Loan to a Service Provider Partner (Details) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
	Aug. 05, 2020	Mar. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jul. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments to acquire notes receivable			$ 0	$ 20,061
Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments to acquire notes receivable		$ 16,400
Service Provider | Subsequent Event
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments to acquire notes receivable	$ 200
Service Provider | Notes Receivable | Subsequent Event
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, maximum available					$ 2,500
Debt instrument, interest rate					9.00%