Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Schedule Of Long-Term Debt) (Details)

v3.8.0.1
Long-Term Debt (Schedule Of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Senior notes $ 45,000 $ 95,000
Revolving credit facility 0 0
Total long-term debt 45,000 95,000
Long-term Debt, Fair Value 46,400 97,100
Less: Current maturities 0 (50,000)
Total maturities due after one year $ 45,000 $ 45,000