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Quarterly Financial Information - Summary of Unaudited Interim Results of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 3 Months Ended
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Mar. 31, 2012 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Mar. 19, 2012
Successor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 1,922 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 1,843 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 1,721 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 2,150 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 2,834 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 3,318 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 3,723 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (974)us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 4,101 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 4,582 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 7,336 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 7,447 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 21,287 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 8,548 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 10,168 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember |
Net income (loss) attributable to common shareholders | 472 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (9,573)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (1,299)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | 17,322 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (12,835)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | 7,516 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (878)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (2,484)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (3,816)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (9,951)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | 5,299 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (8,173)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (12,353)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | (6,385)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | 338 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember |
Earnings per share - basic | $ 0.00 us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.05)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.01)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.09 us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.06)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.04 us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.01)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.01)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.02)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.05)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.03 us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.04)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.06)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.03)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.00 us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember |
Earnings per share - diluted | $ 0.00 us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.05)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.01)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.07 us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.06)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.04 us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.01)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.01)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.02)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.05)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.03 us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.04)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.06)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ (0.03)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember | $ 0.00 us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember |
Predecessor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,349 us-gaap_Revenues / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Net income (loss) attributable to common shareholders |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (3,433)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Earnings per share - basic |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (3,433.00)us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Earnings per share - diluted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (3,433.00)us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember

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