Acquisitions - Franchisee Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2019	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Estimated Fair Value of Identifiable Assets Acquired and Liabilities Assumed
Goodwill		$ 736,202	$ 736,202	$ 733,170
Franchisee Acquisitions
Business Acquisition [Line Items]
Purchase Price	$ 189,826		190,167	$ 189,800
Add: Settlement of Pre-existing Relationship	5,405		5,405
Working Capital Adjustment	155		155
Consideration Transferred	195,386		195,727
Estimated Fair Value of Identifiable Assets Acquired and Liabilities Assumed
Cash and Cash Equivalents	50	50	50
Lease Merchandise	59,616	59,616	59,616
Property, Plant and Equipment	5,568	5,568	5,568
Operating Lease Right-of-Use Assets		0	0
Other Intangibles	24,498	24,498	24,498
Prepaid Expenses and Other Assets	1,206	1,206	1,206
Total Identifiable Assets Acquired	90,938	90,938	90,938
Accounts Payable and Accrued Expenses	(910)	(977)	(977)
Customer Deposits and Advance Payments	(5,156)	(5,156)	(5,156)
Total Liabilities Assumed	(6,066)	(6,133)	(6,133)
Goodwill	110,514	110,922	110,922
Net Assets Acquired	$ 84,872	84,805	$ 84,805
Acquisition Accounting Adjustments
Purchase Price		341
Add: Settlement of Pre-existing Relationship		0
Less: Working Capital Adjustments		0
Aggregate Consideration Transferred		341
Cash and Cash Equivalents		0
Lease Merchandise		0
Property, Plant and Equipment		0
Operating Lease Right-of-Use Assets		0
Other Intangibles		0
Prepaid Expenses and Other Assets		0
Total Identifiable Assets Acquired		0
Accounts Payable and Accrued Expenses		(67)
Customer Deposits and Advance Payments		0
Total Liabilities Assumed		(67)
Goodwill		408
Net Assets Acquired		$ (67)