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Accrued Expenses and Other Current Liabilities	12 Months Ended
Accrued Expenses and Other Current Liabilities	Dec. 31, 2012
Accrued Expenses and Other Liabilities [Abstract]
Accrued Expenses and Other Liabilities	(8) Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consist primarily of accrued compensation and benefits of approximately $19.5 million and $24.0 million as of December 31, 2012 and 2011, respectively. The accrued compensation and benefits amounts include bonus, salaries and related payroll taxes, vacation and deferred compensation.