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Acquisitions (Detail) - USD ($)
3 Months Ended
Jun. 30, 2016
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Aug. 13, 2014
Business Acquisition [Line Items]          
Goodwill   $ 136,522,000 $ 137,097,000 $ 143,589,000  
Business Acquisition, Contingent Consideration, at Fair Value   $ 0 $ 8,012,000 $ 13,286,000  
Acquisition-related Costs [Member]          
Business Acquisition [Line Items]          
Payments to Acquire Businesses, Gross $ 3,665,000        
Dolce Vita [Member]          
Business Acquisition [Line Items]          
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High         $ 5,000,000