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Long-Term Debt Long-Term Debt (Policies)
12 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]  
Debt Issuance Costs
Debt Issuance Costs. Legal fees, accounting fees, underwriting fees, printing costs, and other direct expenses associated with extensions of our senior notes were originally capitalized and then amortized on an effective interest basis over the life of each of the respective senior note offerings.