XML 70 R59.htm IDEA: XBRL DOCUMENT v3.5.0.2
Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Carrying value of long-term debt $ 599,137 $ 597,085
Significant Other Observable Inputs (Level 2) [Member]    
Long-term Debt, Fair Value $ 639,000 $ 593,700