Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangibles Assets (Details 4)

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Goodwill and Intangibles Assets (Details 4) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year $ 51,027  
Finite-Lived Intangible Assets, Amortization Expense, Year Two 57,191  
Finite-Lived Intangible Assets, Amortization Expense, Year Three 56,325  
Finite-Lived Intangible Assets, Amortization Expense, Year Four 55,542  
Finite-Lived Intangible Assets, Amortization Expense, Year Five 38,012  
Finite-Lived Intangible Assets, Amortization Expense, after Year Five 35,534  
Finite-Lived Intangible Assets, Net $ 293,631 $ 310,645