XML 41 R31.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accounting Standards Adopted in Current Year - Additional Information (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Taxes paid related to net share settlement of equity awards $ 4,894 $ 0
Accounting Standards Update 2016-09    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Excess tax benefits in equity   588
Taxes paid related to net share settlement of equity awards   $ 1,978