This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472

Name:	us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Redeemable Noncontrolling Interest - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2019	Jul. 31, 2018
Royal Caribbean International \| Silversea Cruises Group
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	33.30%
Silversea Cruises
Redeemable Noncontrolling Interest [Line Items]
Redeemable noncontrolling interest		$ 537.8