Fair Value Measurements and Derivative Instruments - Interest Rate Risk (Details) - USD ($)		9 Months Ended
		Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of debt bearing fixed interest rate		48.80%	40.50%
Interest rate swaps | Fair Value Hedging
Interest Rate Fair Value Hedges [Abstract]
Long-term Debt		$ 807,500,000
Interest rate swaps | Fair Value Hedging | Oasis of the Seas term loan
Interest Rate Fair Value Hedges [Abstract]
Long-term Debt		$ 157,500,000
Debt Fixed Rate		5.41%
Interest rate swaps | Fair Value Hedging | Senior Fixed Rate 5.25%
Interest Rate Fair Value Hedges [Abstract]
Unsecured term loan		$ 650,000,000
Debt Fixed Rate		5.25%
Interest rate swaps | Cash flow hedge
Interest Rate Cash Flow Hedges [Abstract]
Swap Notional Amount		$ 3,107,300,000
Interest rate swaps | Cash flow hedge | Celebrity Reflection term loan
Interest Rate Cash Flow Hedges [Abstract]
Swap Notional Amount		$ 409,063,000
All-in Swap Fixed Rate		2.85%
Interest rate swaps | Cash flow hedge | Quantum of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Swap Notional Amount		$ 581,875,000
All-in Swap Fixed Rate		3.74%
Interest rate swaps | Cash flow hedge | Anthem of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Swap Notional Amount		$ 604,167,000
All-in Swap Fixed Rate		3.86%
Interest rate swaps | Cash flow hedge | Ovation of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Swap Notional Amount		$ 760,833,000
All-in Swap Fixed Rate		3.16%
Interest rate swaps | Cash flow hedge | Harmony of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Swap Notional Amount	[1]	$ 751,362,000
All-in Swap Fixed Rate	[1]	2.26%
LIBOR | Interest rate swaps | Fair Value Hedging | Oasis of the Seas term loan
Interest Rate Fair Value Hedges [Abstract]
Swap Floating Rate: LIBOR plus		3.87%
All-in Swap Floating Rate		5.29%
LIBOR | Interest rate swaps | Fair Value Hedging | Senior Fixed Rate 5.25%
Interest Rate Fair Value Hedges [Abstract]
Swap Floating Rate: LIBOR plus		3.63%
All-in Swap Floating Rate		4.95%
LIBOR | Interest rate swaps | Cash flow hedge | Celebrity Reflection term loan
Interest Rate Cash Flow Hedges [Abstract]
Margin on floating rate base		0.40%
LIBOR | Interest rate swaps | Cash flow hedge | Quantum of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Margin on floating rate base		1.30%
LIBOR | Interest rate swaps | Cash flow hedge | Anthem of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Margin on floating rate base		1.30%
LIBOR | Interest rate swaps | Cash flow hedge | Ovation of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Margin on floating rate base		1.00%
EURIBOR | Interest rate swaps | Cash flow hedge | Harmony of the Seas Unsecured Term Loan
Interest Rate Cash Flow Hedges [Abstract]
Margin on floating rate base	[1]	1.15%

[1] Interest rate swap agreements hedging the Euro-denominated term loan for Harmony of the Seas include EURIBOR zero-floors matching the hedged debt EURIBOR zero-floor. Amount presented is based on the exchange rate as of September 30, 2017.