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Fair Value - Fair Value of Contingently Convertible Series E Units Liability and Preferred Shares Derivative Liability (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Fair Value Liabilities Measured On Recurring and Nonrecurring Basis [Line Items] |  |
Contingently convertible Series E units liability | $ 66,938 |
Preferred shares derivative liability | 28,150 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair Value Liabilities Measured On Recurring and Nonrecurring Basis [Line Items] |  |
Contingently convertible Series E units liability |  |
Preferred shares derivative liability |  |
Significant Other Observable Inputs (Level 2) [Member] |  |
Fair Value Liabilities Measured On Recurring and Nonrecurring Basis [Line Items] |  |
Contingently convertible Series E units liability |  |
Preferred shares derivative liability |  |
Significant Unobservable Inputs (Level 3) [Member] |  |
Fair Value Liabilities Measured On Recurring and Nonrecurring Basis [Line Items] |  |
Contingently convertible Series E units liability | 66,938 |
Preferred shares derivative liability | $ 28,150 |

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- Definition Series E convertible units that represent non-voting interests in the Operating Partnership that may be settled into a variable number of Series D units or Class A units on a specified date. + References No definition available. + Details
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- Details
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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