Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Instruments Not Carried at Fair Value (Details)

v3.19.3
Fair Value Measurements - Schedule of Instruments Not Carried at Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Long term debt, including current portion:    
Carrying value $ 994,000 $ 1,816,450
Level 2    
Long term debt, including current portion:    
Carrying value 994,000 1,816,450
Fair value [1] $ 925,660 $ 1,218,606
[1] The fair value is based on market quotations from third party financial institutions and is classified as Level 2 in the hierarchy.