Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Percentage of owned subsidiaries			100.00%
Total Debt			$ 1,341,555,000	$ 1,154,420,000
Period of maturity for cash and cash equivalents			Three months or less
Period of original maturity for certificate of deposits			Greater than three months
Cash payments (refunds) of income taxes			(100,000)	4,800,000	1,400,000
Amortization of deferred financing costs			5,959,000	5,500,000	4,908,000
Write-off of deferred financing costs				1,845,000
Notes receivable				1,740,000	4,480,000
Peterson note receivable			149,612,000	148,350,000
Other receivables period due			1 year
Amortization expense of deferred software costs			2,300,000	5,900,000	10,000,000
Term of management rights for income amortization			65 years
Base Management fee			2.00%
Total Base Management fee			19,600,000	18,100,000	5,100,000
Incentive fees			400,000	100,000	0
Advertising costs included in continuing operations			33,300,000	28,800,000	21,800,000
Effect of dilutive stock-based compensation awards					0.9
Stock-based compensation awards outstanding			0	0.1	0.6
Approximate number of common stock share which can be purchased under warrants					1.3
Share repurchase agreement cost recognized	5,000,000	4,900,000	5,417,000	4,869,000
Osceola County [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Land area covered under operating lease agreement			65.3
Grapevine [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Land area covered under operating lease agreement			10.0
Aloft Hotel National Harbor [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of room purchased			192
Purchase price of hotel			21,800,000
Purchase of additional land			0.5
Purchase price paid			21,200,000
Expected opening date			March 2015
Peterson Companies [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Bond issued, face value			26,100,000
Term of Peterson Note			3 years
Notes receivable			9,400,000
Peterson note receivable			16,785,000
Minimum [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Interest in non-marketable investments using equity method of accounting			20.00%
Minimum [Member] | Software Development [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of deferred software costs			3 years
Maximum [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Maximum interest in non-marketable investments using cost method of accounting			20.00%
Interest in non-marketable investments using equity method of accounting			50.00%
Maximum [Member] | Software Development [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of deferred software costs			5 years
$925 Million Credit Facility [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Write-off of deferred financing costs				1,300,000
6.75% Senior Notes [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Write-off of deferred financing costs				500,000
Convertible Notes Payable [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Write-off of deferred financing costs			300,000	300,000
Interest			3.75%
Maturity year of note			2014
Potentially issuable shares under the conversion spread					3.8
AC Hotel Notes Payable [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Total Debt			$ 6,000,000