XML 81 R61.htm IDEA: XBRL DOCUMENT v3.6.0.2
Debt And Credit Arrangements Scheduled Annual Maturities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]      
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months $ 6,487    
Long-term Debt, Maturities, Repayments of Principal in Year Two 255,766    
Long-term Debt, Maturities, Repayments of Principal in Year Three 955    
Long Term Debt Maturities Total Repayments Due 263,208    
Interest Paid $ 5,584 $ 5,113 $ 6,838