Notes Receivable - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, net	$ 42,990,000	$ 45,469,000
Chattel Loans receivable	21,900,000
Loans Receivable Held-for-sale, Net		7,700,000
Contract receivables	17,200,000	16,100,000
Receivables, allowances	4,900,000	4,700,000
Fair value of Chattel loans acquired	13,700,000
Certain Loans Acquired in Transfer, Accretable Yield	0.270	0.210
Non Cash Repossession	2,591,000	5,313,000	2,685,000
Chattel Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, stated interest yield per annum	7.80%
Notes Receivable Yield Rate	20.00%
Loans receivable, amortization term	12 years
Proceeds from receivables repaid	4,300,000	5,500,000
Additional loan to customers	2,800,000	700,000
Allowance for Loan and Lease Losses, Real Estate	400,000	400,000
Non Cash Repossession	2,600,000	5,300,000
Contract Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, allowances	600,000	700,000
Contract Receivable, weighted average rate	16.00%
Loans receivable, amortization term	4 years
Proceeds from receivables repaid	7,100,000	7,100,000
Additional loan to customers	7,500,000	6,600,000
Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Chattel Loans receivable	6,500,000
Continuing Operations [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Chattel Loans receivable		$ 25,000,000