Quarterly report pursuant to Section 13 or 15(d)

Investments in Affiliated Companies - Narratives (Details)

v3.19.2
Investments in Affiliated Companies - Narratives (Details) - Business Combination - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Business Combination          
Net purchase accounting fair value adjustments $ 253,849   $ 253,849   $ 258,066
Amortization of investment in affiliate step-up $ 1,659 $ 1,659 $ 4,217 $ 3,317