Fair Value Measurements and Derivative Instruments - Balance Sheet Hedging Instruments (Details) - Foreign currency debt - Pullmantur and TUI Cruises - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Net investment hedge
Carrying Value of Non-derivative instrument Designated as hedging instrument	$ 158,119	$ 168,718
Long-term debt
Net investment hedge
Carrying Value of Non-derivative instrument Designated as hedging instrument	$ 158,119	$ 168,718

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant