XML 45 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 5 - Long-term Debt (Details Textual)
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2016
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Dec. 31, 2016
USD ($)
Jan. 31, 2015
USD ($)
Debt Instrument, Interest Rate, Stated Percentage   5.125%   5.125%   5.125%  
Debt Issuance Costs, Net   $ 4,239,000   $ 4,239,000   $ 5,151,000  
Eurodollar [Member]              
Debt Instrument, Basis Spread on Variable Rate       1.00%      
Eurodollar [Member] | Minimum [Member]              
Debt Instrument, Basis Spread on Variable Rate       1.25%      
Eurodollar [Member] | Maximum [Member]              
Debt Instrument, Basis Spread on Variable Rate       2.00%      
Federal Funds Effective Swap Rate [Member]              
Debt Instrument, Basis Spread on Variable Rate       0.50%      
Prime Rate [Member] | Minimum [Member]              
Debt Instrument, Basis Spread on Variable Rate       0.25%      
Prime Rate [Member] | Maximum [Member]              
Debt Instrument, Basis Spread on Variable Rate       1.00%      
Revolving Credit Facility [Member]              
Letters of Credit Outstanding, Amount   573,000   $ 573,000   605,000  
The 2014 Amendment of Bank Credit Facility [Member]              
Revolving Credit Facility Accordion Feature       100,000,000      
Term Loan, Maximum Borrowing Capacity   200,000,000   200,000,000      
Debt Agreement, Maximum Borrowing Capacity   250,000,000   250,000,000      
Debt Instrument Covenant, Maximum Dividends Payments and Repurchases of Securities   50,000,000   50,000,000      
Debt Instrument Covenant Annual Capital Expenditures   75,000,000   75,000,000      
Proceeds from Issuance of Debt   0 $ 0 $ 0 $ 0    
The 2014 Amendment of Bank Credit Facility [Member] | Minimum [Member]              
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.25%      
The 2014 Amendment of Bank Credit Facility [Member] | Maximum [Member]              
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.40%      
The 2014 Amendment of Bank Credit Facility [Member] | Term Loan [Member]              
Debt Instrument Quarterly Principal Repayment Percentage       5.00%      
Debt Instrument, Periodic Payment, Principal       $ 7,500,000      
Repayments of Debt   5,000,000 $ 20,000,000 31,000,000 $ 52,000,000    
Long-term Debt   35,000,000   35,000,000   $ 66,000,000  
The 2014 Amendment of Bank Credit Facility [Member] | Subject to Maintaining Certain Financial Covenants [Member]              
Debt Instrument Covenant, Maximum Dividends Payments and Repurchases of Securities   75,000,000   $ 75,000,000      
The 2014 Amendment of Bank Credit Facility [Member] | Senior Secured Revolving Credit Facility [Member]              
Debt Instrument, Term       5 years      
The 2014 Amendment of Bank Credit Facility [Member] | Revolving Credit Facility [Member]              
Line of Credit Facility, Maximum Borrowing Capacity   100,000,000   $ 100,000,000      
Line of Credit Facility, Remaining Borrowing Capacity   99,427,000   99,427,000      
The 2014 Amendment of Bank Credit Facility [Member] | Standby Letters of Credit [Member]              
Line of Credit Facility, Maximum Borrowing Capacity   50,000,000   50,000,000      
The 2014 Amendment of Bank Credit Facility [Member] | Swing Line Loans [Member]              
Line of Credit Facility, Maximum Borrowing Capacity   10,000,000   $ 10,000,000      
The 2014 Amendment of Bank Credit Facility [Member] | Senior Secured Term Loan [Member]              
Debt Instrument, Term       5 years      
Debt Instrument, Face Amount   150,000,000   $ 150,000,000      
The 2014 Amendment of Bank Credit Facility [Member] | Delayed Draw Term Loan [Member]              
Debt Instrument, Term       5 years      
Line of Credit Facility, Maximum Borrowing Capacity   50,000,000   $ 50,000,000      
The 2014 Amendment of Bank Credit Facility [Member] | Letter of Credit [Member]              
Line of Credit Facility, Remaining Borrowing Capacity   $ 49,427,000   $ 49,427,000      
The 2023 Senior Notes [Member]              
Debt Instrument, Face Amount             $ 200,000,000
Debt Instrument, Interest Rate, Stated Percentage             5.125%
Interest Bearing Debt Associated With BMS Purchase [Member]              
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate   3.00%   3.00%   3.00%  
Long-term Debt, Percentage Bearing Fixed Interest, Amount   $ 1,049,000   $ 1,049,000   $ 1,206,000  
Debt Instrument, Number of Periodic Payments 8            
Debt Instrument, Periodic Payment $ 194,000