Annual report pursuant to Section 13 and 15(d)

Income Before Income Taxes (Detail)

v3.6.0.2
Income Before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Examination [Line Items]      
Income before income taxes, U.S. $ 274,756 $ 259,652 $ 205,521
Income before income taxes, Foreign 85,890 88,015 84,542
Income before income taxes $ 360,646 $ 347,667 $ 290,063