Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Definite Life Intangible Assets (Details)

v3.8.0.1
Intangible Assets - Definite Life Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Apr. 18, 2017
Finite-Lived Intangible Assets [Line Items]          
Amortization of intangible assets $ 7,966 $ 12,080 $ 31,592 $ 36,778  
Automatic          
Finite-Lived Intangible Assets [Line Items]          
Intangible assets subject to amortization         $ 14,700