Income Taxes	12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are subject to corporate income taxes in countries where we have operations or subsidiaries. We and the majority of our ship-operating and vessel-owning subsidiaries are currently exempt from United States corporate tax on United States source income from the international operation of ships pursuant to Section 883 of the Internal Revenue Code. Regulations under Section 883 have limited the activities that are considered the international operation of a ship or incidental thereto. Accordingly, our provision for United States federal and state income taxes includes taxes on certain activities not considered incidental to the international operation of our ships. Additionally, some of our ship-operating subsidiaries are subject to income tax under the tonnage tax regimes of Malta or the United Kingdom. Under these regimes, income from qualifying activities is subject to corporate income tax, but the tax is computed by reference to the tonnage of the ship or ships registered under the relevant provisions of the tax regimes (the "relevant shipping profits"), which replaces the regular taxable income base. Income from activities not considered qualifying activities, which we do not consider significant, remains subject to Maltese or United Kingdom corporate income tax. Income tax expense (benefit) for items not qualifying under Section 883, tonnage taxes and income taxes for the remainder of our subsidiaries was approximately $11.1 million, $(20.9) million and $24.9 million and was recorded within Other income (expense) for the years ended December 31, 2015, 2014 and 2013, respectively. In addition, all interest expense and penalties related to income tax liabilities are classified as income tax expense within Other income (expense). For a majority of our subsidiaries, we do not expect to incur income taxes on future distributions of undistributed earnings of foreign subsidiaries. Accordingly, no deferred income taxes have been provided for the distribution of these earnings. Where we do expect to incur income taxes on future distributions of undistributed earnings, we have provided for deferred taxes, which we do not consider significant to our operations. As of December 31, 2015, the Company had Net Operating Losses (“NOLs”) in foreign jurisdictions of $309.7 million. Of these NOLs, $259.7 million carryforward indefinitely, although there are limitations to the amount of NOLs that can be utilized on an annual basis. If not utilized, $50.0 million of NOLs are subject to expiration between 2016 and 2028. The Company has not recognized any benefits related to these NOLs, as all NOLs have full valuation allowances. Net deferred tax assets and deferred tax liabilities and corresponding valuation allowances related to our operations were not material as of December 31, 2015 and 2014. We regularly review deferred tax assets for recoverability based on our history of earnings, expectations of future earnings, and tax planning strategies. Realization of deferred tax assets ultimately depends on the existence of sufficient taxable income to support the amount of deferred taxes. A valuation allowance is recorded in those circumstances in which we conclude it is not more-likely-than-not we will recover the deferred tax assets prior to their expiration. During the fourth quarter of 2014, Spain adopted tax reform legislation, which included among other things, a reduction of the corporate income tax rate from 30% to 28% in 2015 and a further reduction to 25% in 2016. As a result, we adjusted our deferred tax assets and deferred tax liabilities in Spain to reflect the new tax rate at which we believe they will be realized. This change resulted in a net deferred income tax benefit of $10.0 million. The tax reform also amended the net operating loss carryforward rules by changing the carryforward period from 18 years to unlimited and by changing the annual utilization limitation from 25% of taxable income to 70% of taxable income for certain taxpayers, including Pullmantur. As a result of the change of the net operating loss carryforward period, we reversed a portion of the valuation allowance recorded in 2012 to the extent of 70% of the rate-adjusted deferred tax liability recorded for the basis difference between the tax and book values of the trademarks and trade names recorded at the time of the Pullmantur acquisition and other indefinite lived assets recorded. The amount of the valuation allowance reversed in the fourth quarter of 2014 was $33.5 million which was recorded as a deferred tax benefit. These deferred tax adjustments were reported within Other income (expense) in our consolidated statements of comprehensive income (loss). During the third quarter of 2015, the trademark and trade names were impaired, and therefore there is no longer a difference between the book and tax basis of the trademark and trade names. As a result of the impairment of the trademark/name, we reversed the deferred tax liability of $43.4 million and increased the deferred tax asset valuation allowance by $31.4 million, or to 100% of the deferred tax asset balance. The resulting net $12.0 million deferred tax benefit is recorded as part of our income tax provision and is reported within Other income (expense) in our consolidated statements of comprehensive income (loss).

Income Taxes

We are subject to corporate income taxes in countries where we have operations or subsidiaries. We and the majority of our ship-operating and vessel-owning subsidiaries are currently exempt from United States corporate tax on United States source income from the international operation of ships pursuant to Section 883 of the Internal Revenue Code. Regulations under Section 883 have limited the activities that are considered the international operation of a ship or incidental thereto. Accordingly, our provision for United States federal and state income taxes includes taxes on certain activities not considered incidental to the international operation of our ships.

Additionally, some of our ship-operating subsidiaries are subject to income tax under the tonnage tax regimes of Malta or the United Kingdom. Under these regimes, income from qualifying activities is subject to corporate income tax, but the tax is computed by reference to the tonnage of the ship or ships registered under the relevant provisions of the tax regimes (the "relevant shipping profits"), which replaces the regular taxable income base. Income from activities not considered qualifying activities, which we do not consider significant, remains subject to Maltese or United Kingdom corporate income tax.

Income tax expense (benefit) for items not qualifying under Section 883, tonnage taxes and income taxes for the remainder of our subsidiaries was approximately $11.1 million, $(20.9) million and $24.9 million and was recorded within Other income (expense) for the years ended December 31, 2015, 2014 and 2013, respectively. In addition, all interest expense and penalties related to income tax liabilities are classified as income tax expense within Other income (expense).

For a majority of our subsidiaries, we do not expect to incur income taxes on future distributions of undistributed earnings of foreign subsidiaries. Accordingly, no deferred income taxes have been provided for the distribution of these earnings. Where we do expect to incur income taxes on future distributions of undistributed earnings, we have provided for deferred taxes, which we do not consider significant to our operations.

As of December 31, 2015, the Company had Net Operating Losses (“NOLs”) in foreign jurisdictions of $309.7 million. Of these NOLs, $259.7 million carryforward indefinitely, although there are limitations to the amount of NOLs that can be utilized on an annual basis. If not utilized, $50.0 million of NOLs are subject to expiration between 2016 and 2028. The Company has not recognized any benefits related to these NOLs, as all NOLs have full valuation allowances.

Net deferred tax assets and deferred tax liabilities and corresponding valuation allowances related to our operations were not material as of December 31, 2015 and 2014.

We regularly review deferred tax assets for recoverability based on our history of earnings, expectations of future earnings, and tax planning strategies. Realization of deferred tax assets ultimately depends on the existence of sufficient taxable income to support the amount of deferred taxes. A valuation allowance is recorded in those circumstances in which we conclude it is not more-likely-than-not we will recover the deferred tax assets prior to their expiration.

During the fourth quarter of 2014, Spain adopted tax reform legislation, which included among other things, a reduction of the corporate income tax rate from 30% to 28% in 2015 and a further reduction to 25% in 2016. As a result, we adjusted our deferred tax assets and deferred tax liabilities in Spain to reflect the new tax rate at which we believe they will be realized. This change resulted in a net deferred income tax benefit of $10.0 million. The tax reform also amended the net operating loss carryforward rules by changing the carryforward period from 18 years to unlimited and by changing the annual utilization limitation from 25% of taxable income to 70% of taxable income for certain taxpayers, including Pullmantur. As a result of the change of the net operating loss carryforward period, we reversed a portion of the valuation allowance recorded in 2012 to the extent of 70% of the rate-adjusted deferred tax liability recorded for the basis difference between the tax and book values of the trademarks and trade names recorded at the time of the Pullmantur acquisition and other indefinite lived assets recorded. The amount of the valuation allowance reversed in the fourth quarter of 2014 was $33.5 million which was recorded as a deferred tax benefit. These deferred tax adjustments were reported within Other income (expense) in our consolidated statements of comprehensive income (loss).

During the third quarter of 2015, the trademark and trade names were impaired, and therefore there is no longer a difference between the book and tax basis of the trademark and trade names. As a result of the impairment of the trademark/name, we reversed the deferred tax liability of $43.4 million and increased the deferred tax asset valuation allowance by $31.4 million, or to 100% of the deferred tax asset balance. The resulting net $12.0 million deferred tax benefit is recorded as part of our income tax provision and is reported within Other income (expense) in our consolidated statements of comprehensive income (loss).