Income Taxes	3 Months Ended
Mar. 31, 2012
Income Taxes [Abstract]
Income Taxes	15. INCOME TAXES The Company is domiciled in the United States and has subsidiaries domiciled within the United States with significant branches in Canada and Singapore. The Company's non-U.S. branches are subject to income taxation at varying rates in their respective domiciles. The Company generally will use the estimated annual effective tax rate approach for calculating its tax provision for interim periods as prescribed by ASC 740-270, Interim Reporting. Under the estimated annual effective tax rate approach, the estimated annual effective tax rate is applied to the interim year-to-date pre-tax income to determine the income tax expense or benefit for the year-to-date period. The tax expense or benefit for a quarter represents the difference between the year-to-date tax expense or benefit for the current year-to-date period less such amount for the immediately preceding year-to-date period. Management considers the impact of all known events in its estimation of the Company's annual pre-tax income and effective tax rate. During the first quarter of 2012, the Company identified an understatement in its Deferred tax asset account of $12,417 thousand. The understatement resulted from differences between filed and recorded amounts that had accumulated over several prior periods. The Company corrected this understatement in its March 31, 2012 financial statements, resulting in an additional $12,417 thousand income tax benefit included in the income tax expense (benefit) caption in the Consolidated Statements of Operations and Comprehensive Income (Loss) and increased net income for the same amount for the quarter ended March 31, 2012. The Company also increased its Deferred tax asset in its Consolidated Balance Sheets by the same amount. The Company believes that this out of period adjustment is immaterial to its March 31, 2012 financial statements and to all prior periods. As such, the Company has not restated any prior period amounts.

Income Taxes

3 Months Ended

Mar. 31, 2012

15. INCOME TAXES

The Company is domiciled in the United States and has subsidiaries domiciled within the United States with significant branches in Canada and Singapore. The Company's non-U.S. branches are subject to income taxation at varying rates in their respective domiciles.

The Company generally will use the estimated annual effective tax rate approach for calculating its tax provision for interim periods as prescribed by ASC 740-270, Interim Reporting. Under the estimated annual effective tax rate approach, the estimated annual effective tax rate is applied to the interim year-to-date pre-tax income to determine the income tax expense or benefit for the year-to-date period. The tax expense or benefit for a quarter represents the difference between the year-to-date tax expense or benefit for the current year-to-date period less such amount for the immediately preceding year-to-date period. Management considers the impact of all known events in its estimation of the Company's annual pre-tax income and effective tax rate.

During the first quarter of 2012, the Company identified an understatement in its Deferred tax asset account of $12,417 thousand. The understatement resulted from differences between filed and recorded amounts that had accumulated over several prior periods. The Company corrected this understatement in its March 31, 2012 financial statements, resulting in an additional $12,417 thousand income tax benefit included in the income tax expense (benefit) caption in the Consolidated Statements of Operations and Comprehensive Income (Loss) and increased net income for the same amount for the quarter ended March 31, 2012. The Company also increased its Deferred tax asset in its Consolidated Balance Sheets by the same amount. The Company believes that this out of period adjustment is immaterial to its March 31, 2012 financial statements and to all prior periods. As such, the Company has not restated any prior period amounts.