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Deferred Rent and Other Long Term Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Schedule Of Other Liabilities Noncurrent [Line Items]    
Deferred rent liability $ 9,737 $ 10,719
Retirement benefit obligations 5,212 5,752
Contingent consideration related to F&F acquisition 3,647 4,640
Derivative liability 48 454
Total $ 18,644 $ 21,565