XML 65 R52.htm IDEA: XBRL DOCUMENT v3.10.0.1
Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]      
Total amortization expense $ 39,600 $ 35,500 $ 35,900
Amortization expense, 2019 40,222    
Amortization expense, 2020 38,820    
Amortization expense, 2021 38,463    
Amortization expense, 2022 34,987    
Amortization expense, 2023 16,990    
Amortization expense, thereafter 105,028    
Leases acquired      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense, 2019 372    
Amortization expense, 2020 313    
Amortization expense, 2021 312    
Amortization expense, 2022 312    
Amortization expense, 2023 312    
Amortization expense, thereafter $ 723