Annual report pursuant to Section 13 and 15(d)

Fair Value Measurement - Estimated Fair Value (Details)

v3.7.0.1
Fair Value Measurement - Estimated Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Asset (Liability) Carrying Amount    
Financial Liabilities:    
Debt and lines of credit $ (270,735) $ (279,711)
Estimated Fair Value    
Financial Liabilities:    
Debt and lines of credit $ (264,267) $ (275,123)