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Bankruptcy Disclosures - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 12 Months Ended | 1 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 27, 2010 | Nov. 20, 2009 | Dec. 31, 2008 | Jul. 23, 2010 Minimum | Jun. 30, 2009 Minimum | Dec. 31, 2008 11% Senior Unsecured Notes Due 2013
Loss Contingencies [Line Items] |  |  |  |  |  |
Compliance description |  |  | The delay in the quarterly report on Form 10-Q caused a noncompliance with the covenant in the indenture governing the $210.0 million of 11% unsecured senior notes due 2013 (the "2008 Senior Notes"). |  |  |
Senior notes covenant amount |  |  |  |  |  | $ 210.0
Debt interest rate |  |  |  |  |  | 11.00%
Percentage of principal amount |  |  |  |  | 75.00% |
Date of petition for bankruptcy filed with the bankruptcy court |  | Nov. 20, 2009 |  |  |  |
Actions taken | On May 27, 2010, the Bankruptcy Court entered an order confirming and approving the plan of reorganization (the "Final Chapter 11 Plan"). |  |  |  |  |
Percentage of common shares outstanding upon emergence |  |  |  | 50.00% |  |

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