Fair Value Disclosures - Fair Value of Senior Notes Considered at Level 2 Valuation Derived from Quoted Market Prices by Independent Dealers (Detail) (Level 2 [Member], TMM Holdings Limited Partnership [Member], 2020 Senior Notes [Member], Successor [Member], USD $)
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Mar. 31, 2013
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Dec. 31, 2012
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Level 2 [Member] | TMM Holdings Limited Partnership [Member] | 2020 Senior Notes [Member] | Successor [Member]
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Aggregate Principal | $ 675,000,000 | $ 675,000,000 |
Estimated Fair Value | $ 723,938,000 | $ 723,938,000 |