Annual report pursuant to Section 13 and 15(d)

Accrued Expenses and Other Current Liabilities (Detail)

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Accrued Expenses and Other Current Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Accrued Expenses and Other Current Liabilities [Line Items]    
Accrued compensation, payroll taxes and benefits $ 9,101 $ 6,330
Capital leases   65
Current portion of liabilities related to acquisitions 2,056 12,728
Other current liabilities 8,089 6,693
Total accrued expenses and other current liabilities $ 19,246 $ 25,816