Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies Intangibles (Details)

v3.7.0.1
Summary of Significant Accounting Policies Intangibles (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months   $ 37,863  
Intangible assets, gross   810,470 $ 810,265
Finite-Lived Intangible Assets, Accumulated Amortization   94,658 56,782
Other intangibles, net of accumulated amortization of $94,658 ($56,782 - 2015)   715,812 $ 753,483
Finite-Lived Intangible Assets, Amortization Expense, Year Two   37,863  
Finite-Lived Intangible Assets, Amortization Expense, Year Three   37,833  
Finite-Lived Intangible Assets, Amortization Expense, Year Four   37,803  
Finite-Lived Intangible Assets, Amortization Expense, Year Five   37,421  
Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 20 years   20 years
Intangible assets, gross   687,642 $ 687,530
Trademarks All Others [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 5 years   5 years
Intangible assets, gross   300 $ 300
Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life 7 years   7 years
Intangible assets, gross   4,438 $ 4,431
Patents [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, gross   $ 32,796 $ 32,777
Patents [Member] | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life   7 years 7 years
Patents [Member] | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Asset, Useful Life   12 years 12 years
Trademarks All Others [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, gross   $ 85,294 $ 85,227
Indefinite Lived Intangible Asset Useful Life Indefinite   Indefinite