XML 79 R63.htm IDEA: XBRL DOCUMENT v3.6.0.2
Goodwill and other intangible assets - estimated annual amortization expense (Detail)
$ in Thousands
Dec. 31, 2016
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2017 $ 62,900
2018 62,500
2019 62,200
2020 61,800
2021 $ 61,400