Income Taxes (Deferred Income Taxes) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Abstract]
Installment sales treatment of VOI notes receivable	$ 103,226	$ 99,906
Deferred federal and state loss carryforwards/AMT credits (net of valuation allowance of $2.2 million and $2.4 million as of December 31, 2018 and 2017, respectively)	(7,871)	(8,463)
Book reserves for loan losses and inventory	(29,565)	(25,618)
Tax over book depreciation	2,343	(1,708)
Deferral of VOI sales and costs under timeshare accounting rules	8,654	12,242
Real estate valuation	(5,792)	(6,884)
Intangible assets	14,279	14,279
Junior subordinated debentures	9,378	9,144
Other	(3,596)	(3,932)
Deferred income taxes	91,056	88,966
Total deferred federal and state tax liabilities	137,880	135,571
Total deferred federal and state tax assets	(46,824)	(46,605)
Valuation allowance	$ 2,200	$ 2,400