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Summary of Net Assets Acquired (Parenthetical) (Detail) - Legacy Hay
$ in Thousands
Dec. 01, 2015
USD ($)
Business Acquisition [Line Items]  
Intangible assets $ 198,700 [1]
Trademarks  
Business Acquisition [Line Items]  
Intangible assets 102,200
Customer Lists  
Business Acquisition [Line Items]  
Intangible assets $ 86,300
Intangible assets, weighted-average useful lives 11 years
Intellectual Property  
Business Acquisition [Line Items]  
Intangible assets $ 10,200
Intangible assets, weighted-average useful lives 7 years
[1] Acquisition-related intangible assets acquired in connection with the acquisition of Legacy Hay consist of customer lists and intellectual property of $86.3 million and $10.2 million, respectively, with weighted-average useful lives from the date of purchase of eleven years and seven years, respectively. Acquisition-related intangible assets not subject to amortization acquired in connection with the acquisition of Legacy Hay consist of trademarks of $102.2 million.