CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Passenger ticket revenues	$ 1,393,778	$ 1,352,238
Onboard and other revenues	517,442	482,242
Total revenues	1,911,220	1,834,480
Cruise operating expenses:
Commissions, transportation and other	322,937	320,738
Onboard and other	121,487	107,595
Payroll and related	209,923	210,114
Food	119,483	113,625
Fuel	241,652	228,994
Other operating	266,708	274,046
Total cruise operating expenses	1,282,190	1,255,112
Marketing, selling and administrative expenses	274,034	264,601
Depreciation and amortization expenses	189,364	179,392
Operating Income	165,632	135,375
Other income (expense):
Interest income	3,747	6,346
Interest expense, net of interest capitalized	(90,182)	(92,666)
Other expense	(2,971)	(2,091)
Total other income (expense)	(89,406)	(88,411)
Net Income	76,226	46,964
Earnings per Share:
Basic (in dollars per share)	$ 0.35	$ 0.22
Diluted (in dollars per share)	$ 0.35	$ 0.21
Weighted-Average Shares Outstanding:
Basic (in shares)	219,097	217,584
Diluted (in shares)	220,484	219,230
Comprehensive Income (Loss)
Net Income	76,226	46,964
Other comprehensive income (loss):
Foreign currency translation adjustments	(4,244)	3,340
(Loss) gain on cash flow derivative hedges	(22,600)	147,470
Total other comprehensive (loss) income	(26,844)	150,810
Comprehensive Income	$ 49,382	$ 197,774