Income Taxes	9 Months Ended
Sep. 30, 2011
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. For 2010 and the first six months ending June 30 2011, the Company utilized 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 ordinary income to determine the income tax expense or benefit for the year-to-date period, adjusted by the tax impact for discrete items. Due to potential volatility in the estimated annual effective tax rate approach, management has determined that an estimated annual effective tax rate approach is not reliable for the current interim reporting period and is recording taxes using the actual tax rate for the year-to-date results. 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.

Income Taxes

9 Months Ended

Sep. 30, 2011

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.

For 2010 and the first six months ending June 30 2011, the Company utilized 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 ordinary income to determine the income tax expense or benefit for the year-to-date period, adjusted by the tax impact for discrete items. Due to potential volatility in the estimated annual effective tax rate approach, management has determined that an estimated annual effective tax rate approach is not reliable for the current interim reporting period and is recording taxes using the actual tax rate for the year-to-date results. 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.