Annual report pursuant to Section 13 and 15(d)

Investments in Affiliated Companies - Narratives (Details)

v3.10.0.1
Investments in Affiliated Companies - Narratives (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Business Acquisition      
Charges related to purchase accounting fair value adjustments $ 6,634 $ 8,599 $ 36,296
Equity Method Investee      
Business Acquisition      
Due from related parties 4,775 4,910  
Related party sales 2,823 2,853 1,587
Purchases from related party 645 2,475 $ 1,147
Business Combination      
Business Acquisition      
Purchase accounting fair value adjustments $ 258,066 $ 264,700