Debtor in Possession Financial Information (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of liabilities subject to compromise in the consolidated balance sheet
Debt obligations and accrued interest payable	$ 1,690,312	$ 1,690,312
Other	17,099	17,109
Consolidated liabilities subject to compromise	1,707,411	1,707,421
Payable to non-debtor subsidiaries	35	35
Debtor's Liabilities subject to compromise	$ 1,707,446	$ 1,707,456