XML 67 R52.htm IDEA: XBRL DOCUMENT v3.10.0.1
Significant Accounting Policies (Estimated Future Annual Amortization Expense of Intangible Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]    
2019 $ 50,981  
2020 38,482  
2021 24,494  
2022 22,644  
2023 19,292  
Thereafter 11,294  
Total $ 167,187 $ 1,600