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Income Taxes | 6 Months Ended
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Jun. 30, 2011
Income Taxes [Abstract] |
Income Taxes | 19. Income Taxes During the six months ended June 30, 2011, the Company had a reduction in its liabilities for uncertain tax positions and a reduction in its income tax expense of approximately $3,637 due to settlements and closures of various tax years. During the six months ended June 30, 2010 the Company had a reduction in its liabilities for uncertain tax positions of approximately $14,115 due to settlements and closures of various tax years. These settlements and closures also resulted in a reduction in income tax expense of approximately $8,882 for the six months ended June 30, 2010.

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