XML 23 R34.htm IDEA: XBRL DOCUMENT v3.19.3
Summary of Significant Accounting Policies - Schedule Of Other Finite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]    
Net Carrying Amount $ 1,415,287 $ 1,506,522
Other finite-lived intangible assets (included in Other, a component of Other assets, net)    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 19,842 20,310
Accumulated Amortization (17,385) (14,798)
Net Carrying Amount $ 2,457 $ 5,512