Consolidated Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 26, 2016
Unconsolidated VIEs
Movement in Valuation Allowances and Reserves [Roll Forward]
Principal balance of finance receivable				$ 301,800
Accounts receivable – allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	$ 2,905	$ 3,458	$ 4,960
Provision charged to expense	(101)	266	(471)
Reserve adjustments	(63)	(276)	(394)
Write-offs, net of recoveries	0	(543)	(637)
Balance, end of period	2,741	2,905	3,458
Finance receivables – allowance for credit losses
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	147,178	127,364	110,693
Provision charged to expense	(136,617)	(101,345)	(80,946)
Write-offs, net of recoveries	(107,161)	(81,531)	(64,275)
Other	(3,291)	0	0
Balance, end of period	173,343	147,178	127,364
Inventories – allowance for obsolescence
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	26,740	17,775	17,463
Provision charged to expense	(21,137)	(19,564)	(19,044)
Reserve adjustments	(88)	(1,028)	(399)
Write-offs, net of recoveries	(7,916)	(9,571)	(18,333)
Balance, end of period	39,873	26,740	17,775
Deferred tax assets – valuation allowance
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	20,659	25,462	21,818
Reserve adjustments	10,294	(4,803)	3,644
Balance, end of period	$ 30,953	$ 20,659	$ 25,462