Annual report pursuant to Section 13 and 15(d)

Debt - Fair Value Of Embedded Derivatives (Details)

v3.6.0.2
Debt - Fair Value Of Embedded Derivatives (Details) - Notes - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Fair value of Senior Notes:      
With the embedded derivatives $ 45,204 $ 48,384 $ 129,009
Without the embedded derivatives 28,468 24,647 63,062
Estimated fair value of the embedded derivatives $ 16,736 $ 23,737 $ 65,947