Annual report pursuant to Section 13 and 15(d)

Investments in Affiliated Companies - Rollforward (Details)

v3.10.0.1
Investments in Affiliated Companies - Rollforward (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Equity Method Investments      
Balance at beginning of period $ 469,276 $ 459,406  
Investments in affiliated companies 5,000 9,000 $ 0
Equity in net income of affiliated companies 44,245 47,371  
Charges related to purchase accounting fair value adjustments (6,634) (8,599) (36,296)
Dividends received (40,890) (44,071)  
Foreign currency translation adjustments (2,786) 6,050  
Balance at end of period 468,211 469,276 $ 459,406
Sovitec Mondial S.A.      
Equity Method Investments      
Equity method investments assumed in business combination $ 0 $ 119