Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 113,709,000	$ 121,613,000	$ 111,061,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,582,000	8,226,000	8,024,000
Provision for bad debts, net	2,743,000	2,923,000	2,192,000
Non-cash stock compensation and other charges	11,271,000	12,375,000	14,511,000
Non-cash interest and other (income) loss	1,545,000	292,000	2,208,000
Loss on extinguishment of debt	0	526,000	0
Dividends received from equity method investments	1,445,000	1,310,000	1,139,000
Deferred income taxes	(6,277,000)	(1,126,000)	5,866,000
Equity in net income of affiliates	(634,000)	(212,000)	(269,000)
Changes in assets and liabilities:
Receivables	(7,899,000)	(6,807,000)	(9,764,000)
Advances to/from marketing and reservation activities, net	42,991,000	30,983,000	1,553,000
Forgivable notes receivable, net	(8,347,000)	(10,898,000)	(3,475,000)
Accounts payable	2,304,000	11,000	(1,851,000)
Accrued expenses	(9,595,000)	12,376,000	6,346,000
Income taxes payable/receivable	4,276,000	(2,662,000)	(4,562,000)
Deferred revenue	(9,861,000)	2,188,000	1,523,000
Other assets	(3,197,000)	(3,476,000)	(3,162,000)
Other liabilities	9,857,000	(17,520,000)	29,000
Net cash provided by operating activities	153,913,000	150,122,000	131,369,000
CASH FLOWS FROM INVESTING ACTIVITIES
Investment in property and equipment	(33,397,000)	(15,443,000)	(10,924,000)
Equity method investments	(5,685,000)	(20,285,000)	(5,000,000)
Issuance of mezzanine and other notes receivable	(1,095,000)	(23,736,000)	(9,227,000)
Collections of mezzanine and other notes receivable	9,748,000	3,270,000	4,690,000
Purchases of investments, employee benefit plans	(2,676,000)	(1,697,000)	(1,602,000)
Proceeds from sales of investments, employee benefit plans	4,168,000	11,223,000	644,000
Proceeds from sale of assets	243,000	0	1,654,000
Other items, net	(728,000)	(433,000)	(564,000)
Net cash used in investing activities	(29,422,000)	(47,101,000)	(20,329,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt	3,360,000	543,500,000	75,000
Net borrowings (repayments) pursuant to revolving credit facilities	(57,000,000)	57,000,000	(200,000)
Principal payments on long-term debt	(8,204,000)	(4,422,000)	(297,000)
Debt issuance costs	0	(4,759,000)	(2,356,000)
Excess tax benefits from stock-based compensation	1,460,000	1,559,000	1,227,000
Purchase of treasury stock	(3,965,000)	(22,586,000)	(53,617,000)
Dividends paid	(32,799,000)	(654,092,000)	(43,747,000)
Proceeds from exercise of stock options	8,864,000	7,090,000	3,845,000
Net cash used in financing activities	(88,284,000)	(76,710,000)	(95,070,000)
Net change in cash and cash equivalents	36,207,000	26,311,000	15,970,000
Effect of foreign exchange rate changes on cash and cash equivalents	(2,589,000)	809,000	(172,000)
Cash and cash equivalents at beginning of period	134,177,000	107,057,000	91,259,000
Cash and cash equivalents at end of period	167,795,000	134,177,000	107,057,000
Cash payments during the year for:
Income taxes, net of refunds	47,513,000	51,548,000	45,483,000
Interest	43,327,000	16,954,000	15,527,000
Non-cash investing and financing activities:
Dividends declared but not paid	10,785,000	1,000	10,719,000
Equity method investments	0	3,900,000	0
Capital lease obligation	0	0	908,000
Debt issuance costs	0	6,500,000	0
Issuance of treasury stock to employee stock purchase plan	0	0	739,000
Investment in property and equipment acquired in accounts payable	658,000	0	0
Restricted Stock [Member]
Non-cash investing and financing activities:
Issuance of restricted shares of common stock and performance vested restricted stock units	8,500,000	9,517,000	9,604,000
Performance Vested Restricted Stock Units [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends paid	(500,000)	0
Non-cash investing and financing activities:
Issuance of restricted shares of common stock and performance vested restricted stock units	$ 1,298,000	$ 0	$ 0