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Long-Term Debt - Schedule Of Consolidated Leverage Ratio Cash Balances (Details) - USD ($)
Mar. 31, 2017
Feb. 29, 2016
Debt Instrument [Line Items]    
Minimum Cash Balance $ 100,000,000  
Greater than or equal to 4.50x [Member] | February 2016 Amendment [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Minimum Cash Balance   $ 150,000,000.00
Greater than or equal to 4.00x but less than 4.50x [Member] | February 2016 Amendment [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Minimum Cash Balance   100,000,000.00
Greater than or equal to 3.50x but less than 4.00x [Member] | February 2016 Amendment [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Minimum Cash Balance   50,000,000.00
Less than 3.50x [Member] | February 2016 Amendment [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Minimum Cash Balance   $ 0.00