Consolidated Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Allowance for credit losses on finance receivables	$ 339,379	$ 390,936	$ 198,581	$ 189,885	$ 192,471
Accounts receivable - Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	3,742	4,928	4,007
Provision charged to expense	197	853	1,569
Reserve adjustments	(157)	88	7
Write-offs, net of recoveries	(1,342)	(2,127)	(655)
Balance, end of period	2,440	3,742	4,928
Finance receivables - Allowance for credit losses
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	390,936	198,581	189,885
Provision charged to expense	25,049	181,870	134,536
Write-offs, net of recoveries	(76,606)	(90,119)	(125,840)
Allowance for credit losses on finance receivables	0	100,604	0
Balance, end of period	339,379	390,936	198,581
Inventories – allowance for obsolescence
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	71,995	49,349	39,015
Provision charged to expense	5,659	43,357	24,984
Reserve adjustments	(2,078)	718	(39)
Write-offs, net of recoveries	(12,607)	(21,429)	(14,611)
Balance, end of period	62,969	71,995	49,349
Deferred tax assets - Valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	38,072	29,024	21,868
Reserve adjustments	(4,476)	9,048	7,156
Balance, end of period	$ 33,596	$ 38,072	$ 29,024