Segments - Information on Segments and Reconciliation to Earnings Before Income Taxes from Continuing Operations- Additional Information (Details) $ in Thousands	2 Months Ended	3 Months Ended			5 Months Ended	9 Months Ended
	Sep. 30, 2016 USD ($) Store	Dec. 31, 2016 Store	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2016 Store	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Restructuring charges			$ 4,658	$ 0		$ 4,658	$ 0
Restructuring and related cost, number of store closures | Store	2
Operating Segments | Manufacturing
Segment Reporting Information [Line Items]
Inventory (principally raw materials and work-in-process)	$ 16,700		16,700			16,700		$ 19,400
Building | Operating Segments | Other
Segment Reporting Information [Line Items]
Gain on sale of corporate office building						11,100
HomeSmart | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Reporting Information [Line Items]
Charge related to write down of disposal group						4,200
Business exit costs			40			$ 1,400
Facility Closing
Segment Reporting Information [Line Items]
Restructuring charges			2,543
Facility Closing | Operating Segments | Sales and Lease Ownership
Segment Reporting Information [Line Items]
Restructuring charges			2,600
Severance
Segment Reporting Information [Line Items]
Restructuring charges			2,115
Severance | Operating Segments | Franchised Stores
Segment Reporting Information [Line Items]
Restructuring charges			88
Severance | Operating Segments | Other
Segment Reporting Information [Line Items]
Restructuring charges			$ 2,000
Scenario, Forecast
Segment Reporting Information [Line Items]
Restructuring and related cost, number of store closures | Store		54			56