SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 1,840,097	[1]	$ 2,836,497	[1]	$ 2,123,575	[1]	$ 1,641,802	[1]	$ 1,541,153	[1]	$ 2,269,903	[1]	$ 1,680,238	[1]	$ 1,302,012	[1]	$ 8,441,971	$ 6,793,306	$ 5,260,956
Gross profit	1,674,685		2,619,978		1,882,996		1,406,471		1,333,301		1,989,065		1,383,855		1,009,665		7,584,130	5,715,886	4,083,681
Net income	451,831		1,062,253		576,451		331,218		378,077		832,989		437,440		244,292		2,421,753	1,892,798	1,424,037
Net income applicable to common stockholders	$ 451,831		$ 1,062,253		$ 576,451		$ 331,218		$ 378,077		$ 832,989		$ 437,326		$ 244,271		$ 2,421,753	$ 1,892,663	$ 1,419,566
Net income applicable to common stockholders per basic common share	$ 8.65		$ 20.27		$ 11.00		$ 6.35		$ 7.32		$ 16.22		$ 8.62		$ 4.89		$ 46.30	$ 37.17	$ 28.48
Net income applicable to common stockholders per diluted common share	$ 8.56		$ 20.03		$ 10.89		$ 6.25		$ 7.14		$ 15.72		$ 8.39		$ 4.76		$ 45.67	$ 36.11	$ 27.66

[1] As the Company's retail accommodation business, which recognizes revenue at the completion of the stay, continues to expand, our quarterly results become increasingly impacted by seasonal factors.