Long-Term Debt	9 Months Ended
Sep. 30, 2015
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt In April 2015, we took delivery of Anthem of the Seas. To finance the purchase, we borrowed $742.1 million under a previously committed unsecured term loan which is 95% guaranteed by Euler Hermes Deutschland AG ("Hermes"), the official export credit agency of Germany. The loan amortizes semi-annually over 12 years and bears interest at LIBOR plus a margin of 1.30%, totaling 1.71% as of September 30, 2015. Refer to Note 10. Fair Value Measurements and Derivative Instruments for information regarding interest rate swap agreements related to this loan. In June 2015, we amended and restated our $1.1 billion unsecured revolving credit facility due July 2016. The amendment reduced the applicable margin and facility fee and extended the termination date to June 2020. The applicable margin and facility fee vary with our debt rating and were 1.50% and 0.25%, respectively, as of September 30, 2015. We have the right to request an increase in the capacity of the amended facility by an additional $300 million, subject to the receipt of additional or increased lender commitments, and to extend the termination date by up to two years, subject to lender consent. Additionally, in July 2015, we amended our $1.2 billion unsecured revolving credit facility due August 2018 to reduce pricing in line with the amended pricing of the $1.1 billion unsecured revolving credit facility. These amendments did not result in the extinguishment of debt. In July 2015, we also amended our $380.0 million, €365.0 million, $290.0 million and $65.0 million unsecured term loans due at various dates from 2016 through 2019 to reduce the applicable margins. The margins are currently 1.75% for each loan based on our debt rating as of September 30, 2015. The termination date of the $290 million unsecured term loan was extended from February 2016 to February 2018. None of these amendments resulted in the extinguishment of debt. In October 2015, we received increased lender commitments for our unsecured revolving credit facility due June 2020 in the amount of $300 million, bringing our total capacity under this facility to $1.4 billion.

Long-Term Debt

In April 2015, we took delivery of Anthem of the Seas. To finance the purchase, we borrowed $742.1 million under a previously committed unsecured term loan which is 95% guaranteed by Euler Hermes Deutschland AG ("Hermes"), the official export credit agency of Germany. The loan amortizes semi-annually over 12 years and bears interest at LIBOR plus a margin of 1.30%, totaling 1.71% as of September 30, 2015. Refer to Note 10. Fair Value Measurements and Derivative Instruments for information regarding interest rate swap agreements related to this loan.

In June 2015, we amended and restated our $1.1 billion unsecured revolving credit facility due July 2016. The amendment reduced the applicable margin and facility fee and extended the termination date to June 2020. The applicable margin and facility fee vary with our debt rating and were 1.50% and 0.25%, respectively, as of September 30, 2015. We have the right to request an increase in the capacity of the amended facility by an additional $300 million, subject to the receipt of additional or increased lender commitments, and to extend the termination date by up to two years, subject to lender consent. Additionally, in July 2015, we amended our $1.2 billion unsecured revolving credit facility due August 2018 to reduce pricing in line with the amended pricing of the $1.1 billion unsecured revolving credit facility. These amendments did not result in the extinguishment of debt.

In July 2015, we also amended our $380.0 million, €365.0 million, $290.0 million and $65.0 million unsecured term loans due at various dates from 2016 through 2019 to reduce the applicable margins. The margins are currently 1.75% for each loan based on our debt rating as of September 30, 2015. The termination date of the $290 million unsecured term loan was extended from February 2016 to February 2018. None of these amendments resulted in the extinguishment of debt.

In October 2015, we received increased lender commitments for our unsecured revolving credit facility due June 2020 in the amount of $300 million, bringing our total capacity under this facility to $1.4 billion.