Subsequent Event (Details) (USD $) In Millions, unless otherwise specified	Jul. 22, 2013	Oct. 10, 2014 Subsequent Event [Member] bbl
Subsequent Event [Line Items]
Business Acquisition, Cargo Capacity		330,000
Business Acquisition, Transaction Costs	$ 230.9	$ 157.0

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

No definition available.

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant