Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Goodwill and Other Intangible Assets (Schedule of Estimated Amortization Expense Relating to Intangible Assets) (Details)

v3.7.0.1
Goodwill and Other Intangible Assets (Schedule of Estimated Amortization Expense Relating to Intangible Assets) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]        
Remaining six months of 2017 $ 17,323   $ 17,323  
2018 33,214   33,214  
2019 32,307   32,307  
2020 31,967   31,967  
2021 31,387   31,387  
Thereafter 14,728   14,728  
Net Book Value 160,926   160,926  
Amortization of intangible assets $ 8,700 $ 14,500 $ 17,400 $ 29,200