XML 70 R52.htm IDEA: XBRL DOCUMENT v3.8.0.1
Goodwill and Intangibles - Schedule of Estimated Aggregate Annual Amortization (Detail)
$ in Thousands
Dec. 31, 2017
USD ($)
Finite Lived Intangible Assets Net Amortization Expense Rolling Maturity [Abstract]  
2018 $ 23,516
2019 18,387
2020 17,671
2021 16,653
2022 15,735
Thereafter $ 46,029