Segments - Additional Information (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 15, 2014 Store	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($) Store	Sep. 30, 2015 USD ($) segments	Sep. 30, 2014 USD ($) Store	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segments				5
Restructuring Expenses		$ 0	$ 6,876	$ 0	$ 9,140	$ 9,100
Retirement and Vacation Charges		0	9,094	0	9,094
Restructuring and related cost, number of store closures | Store	44
Regulatory income		0	1,200	0	1,200
Financial Advisory and Legal Costs		0	385	0	13,661
Progressive-Related Transaction Costs		$ 0	371	$ 0	6,638
Operating Segments | Sales and Lease Ownership
Segment Reporting Information [Line Items]
Restructuring Expenses			2,600		$ 4,800
Restructuring and related cost, number of store closures | Store					44
Operating Segments | Other Segments
Segment Reporting Information [Line Items]
Restructuring Expenses			4,300		$ 4,300
Retirement and Vacation Charges			$ 9,100		$ 9,100
Restructuring and related cost, number of store closures | Store			44		44
Regulatory income			$ 1,200		$ 1,200
Financial Advisory and Legal Costs			385		13,700
Progressive-Related Transaction Costs			$ 371		$ 6,600