Business and Summary of Significant Accounting Policies - Narrative (Details) shares in Thousands, £ in Millions				3 Months Ended	12 Months Ended
	Oct. 01, 2016 USD ($)	May 13, 2016 USD ($) Store	Jan. 29, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2016 GBP (£) store state	Dec. 31, 2016 USD ($) store state	Dec. 31, 2015 GBP (£)	Dec. 31, 2015 USD ($)
Significant Accounting Policies [Line Items]
Franchise royalties and fees					$ 58,350,000	$ 63,507,000	$ 65,902,000
Shipping and handling costs					69,900,000	77,900,000	81,100,000
Advertising costs					40,800,000	39,300,000	50,500,000
Amount of cooperative advertising consideration netted against advertising expense					22,200,000	36,300,000	28,300,000
Prepaid advertising asset									$ 1,200,000		$ 900,000
Lease merchandise adjustments					$ 134,110,000	130,548,000	80,692,000
Threshold period past due for write-off of lease receivable					60 days
Threshold of past due financing receivable that requires allowance					24 months
Depreciation expense for property, plant and equipment					$ 53,600,000	52,000,000	53,700,000
Amortization expense					28,800,000	28,200,000	31,900,000
Assets Held for Sale									8,866,000		6,976,000
Gain (loss) on disposition					11,400,000	0	(800,000)
Asset retirement obligations									2,500,000		2,600,000
Foreign currency transaction gains and losses					3,700,000	2,500,000	2,300,000
Acquisitions of businesses and contracts					9,762,000	73,295,000	700,509,000
Held-to-maturity securities, realized gain (loss)							100,000
Proceeds from sale of buildings			$ 13,600,000
Impairment of indefinite-lived intangibles	$ 0
Proceeds from disposition of business, net of cash acquired					35,899,000	13,976,000	16,525,000
Accounts Payable									$ 71,941,000		98,655,000
Software
Significant Accounting Policies [Line Items]
Amortization expense					$ 9,200,000	$ 7,400,000	$ 5,400,000
Customer Relationships
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					2 years
Acquired Franchise Development Rights
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					10 years
Restricted stock units
Significant Accounting Policies [Line Items]
Anti-dilutive Securities excluded from the computation of earnings per share assuming dilution | shares					939	460	164
Maximum | Non-Compete Agreements
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					3 years
Maximum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					40 years
Maximum | Other depreciable property and equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					15 years
Maximum | Software
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					10 years
Maximum | Software updates
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					1 month
Minimum | Non-Compete Agreements
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					1 year
Minimum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					5 years
Minimum | Other depreciable property and equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					1 year
Minimum | Software
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					5 years
Variable Interest Entity, Not Primary Beneficiary
Significant Accounting Policies [Line Items]
Number of retail stores | store								57	57
Held to maturity securities								£ 16.6	$ 20,500,000	£ 15.1	22,200,000
Investment Interest Rate					12.00%	10.00%
Sales and Lease Ownership and HomeSmart
Significant Accounting Policies [Line Items]
Franchise royalties and fees					$ 400,000	$ 600,000	$ 1,000,000
Royalty revenue					53,700,000	57,700,000	58,800,000
Finance fee revenue					2,300,000	2,900,000	3,700,000
Deferred franchise and area development agreement fees									$ 1,100,000		1,600,000
Sales and Lease Ownership and HomeSmart | Maximum
Significant Accounting Policies [Line Items]
Non-refundable initial franchise fee					$ 50,000
Percentage of royalty of gross revenue					6.00%
Sales and Lease Ownership and HomeSmart | Minimum
Significant Accounting Policies [Line Items]
Non-refundable initial franchise fee					$ 15,000
Percentage of royalty of gross revenue					5.00%
Progressive
Significant Accounting Policies [Line Items]
Threshold period past due for write-off of lease receivable					120 days
Progressive | Agreement One
Significant Accounting Policies [Line Items]
Lease agreement period					12 months
Sales and Lease Ownership
Significant Accounting Policies [Line Items]
Impairment charge					$ 5,800,000	$ 500,000	800,000
Sales and Lease Ownership | Agreement One
Significant Accounting Policies [Line Items]
Lease agreement period					12 months
Sales and Lease Ownership | Agreement Two
Significant Accounting Policies [Line Items]
Lease agreement period					18 months
Sales and Lease Ownership | Agreement Three
Significant Accounting Policies [Line Items]
Lease agreement period					24 months
Progressive
Significant Accounting Policies [Line Items]
Number of states in which entity operates | state								46	46
Business combination, consideration transferred, net of cash acquired							68,700,000
Debt issuance costs, net							$ (2,300,000)
Progressive | Customer Lease Contracts
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					1 year
Progressive | Internal Use Software
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					3 years
Progressive | Technology
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					10 years
Progressive | Merchant Relationships
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					12 years
DAMI | Non-Compete Agreements
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					5 years
DAMI | Technology
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					5 years
Subsidiaries | DAMI
Significant Accounting Policies [Line Items]
Debt issuance costs, net											(400,000)
Subsidiaries | DAMI | Non-Compete Agreements
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					5 years
Subsidiaries | DAMI | Technology
Significant Accounting Policies [Line Items]
Estimated useful lives of intangibles (in years)					5 years
Disposal Group, Disposed of by Sale, Not Discontinued Operations | HomeSmart
Significant Accounting Policies [Line Items]
Disposal group, number of stores | Store		82
Proceeds from disposition of business, net of cash acquired		$ 35,000,000
Charge related to write down of disposal group				$ 4,600,000
Other operating expense (income) | Disposal Group, Disposed of by Sale, Not Discontinued Operations | HomeSmart
Significant Accounting Policies [Line Items]
Gain on sale of corporate office building			$ 11,100,000
Charge related to write down of disposal group					$ 4,300,000
Debt
Significant Accounting Policies [Line Items]
Debt issuance costs, net											(3,700,000)
Accounting Standards Update 2015-03
Significant Accounting Policies [Line Items]
Debt issuance costs, net											$ 3,700,000