Annual report pursuant to Section 13 and 15(d)

Reportable Segments - Assets by Geography (Details)

v3.10.0.1
Reportable Segments - Assets by Geography (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets    
Long-lived assets $ 1,208,979 $ 1,230,384
United States    
Revenues from External Customers and Long-Lived Assets    
Long-lived assets 865,799 891,861
Netherlands    
Revenues from External Customers and Long-Lived Assets    
Long-lived assets 52,461 52,882
United Kingdom    
Revenues from External Customers and Long-Lived Assets    
Long-lived assets 90,095 90,536
Other foreign countries    
Revenues from External Customers and Long-Lived Assets    
Long-lived assets $ 200,624 $ 195,105