XML 88 R78.htm IDEA: XBRL DOCUMENT v3.5.0.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Income Taxes [Line Items]          
Effective tax rate 23.00% 29.30% 24.40% 29.10%  
Gross unrecognized tax benefits excluding interest and penalties $ 30,567   $ 30,567   $ 4,332
Net unrecognized tax benefit excluding interest and penalties that would impact effective tax rate 19,399   19,399    
Accrued interest on unrecognized tax benefits $ 738   738   $ 157
Net unrecognized tax benefits, excluding interest and penalties, related to foreign tax positions     $ 3,370    
Income tax examination, description     The Company and its subsidiaries are subject to examination by U.S. federal, state and foreign tax authorities. The United States Internal Revenue Service commenced an examination of the Company's U.S. federal tax filings for tax years 2011 through 2013 during the quarter ended March 31, 2015.    
Earliest Tax Year [Member] | Internal Revenue Service (IRS) [Member]          
Income Taxes [Line Items]          
Open tax year     2011