Aggregate Consideration Paid or Issued to Complete the BORCO Acquisition (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 18, 2011 FRC Founders Corporation		Feb. 16, 2011 Vopak Bahamas B.V.		Dec. 31, 2011 Bahamas Oil Refining Company International Limited		Jan. 18, 2011 Bahamas Oil Refining Company International Limited FRC Founders Corporation	Feb. 16, 2011 Bahamas Oil Refining Company International Limited Vopak Bahamas B.V.
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Cash consideration	$ 644,049		$ 164,616		$ 808,665
Fair value of LP Units and Class B Units issued	407,391	[1]	96,110	[1]	503,501	[1]
Cash paid on behalf of the sellers	96,241	[2]	15,780	[2]	112,021	[2]
Allocated purchase price	$ 1,147,681		$ 276,506		$ 1,424,187		$ 1,147,681	$ 276,500

[1] On January 18, 2011 and February 16, 2011, we issued LP Units and Class B Units to First Reserve and Vopak, which represented a negotiated value of $400.0 million and $100.0 million of consideration, respectively. In accordance with accounting for business combinations, the fair values of the units issued to First Reserve and Vopak on their respective acquisition dates were determined to be $407.4 million and $96.1 million, respectively.

[2] Approximately $79.3 million was to be held in escrow related to Bahamian transfer taxes payable, approximately $23.2 million was used to make certain payments to Vopak (BORCO's operator) and to pay certain fees and expenses incurred by FRBCH and its affiliates in connection with the transaction and approximately $9.5 million was used to pay bonuses to employees that became payable as a result of the transaction.