XML 75 R64.htm IDEA: XBRL DOCUMENT v3.19.1
Leases - Narrative (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Operating Leased Assets [Line Items]      
Operating lease assets $ 52,020   $ 0
Operating lease, liability $ 51,792    
Accounting Standards Update 2016-02      
Operating Leased Assets [Line Items]      
Operating lease assets   $ 54,000  
Operating lease, liability   $ 54,000