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Derivative Financial Instruments
 12 Months Ended
Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments
Derivative Financial Instruments
From time to time, the Company seeks to offset its exposure to changing interest rates under its debt financing arrangements and certain of its Affiliates seek to offset their exposure to changing foreign currency exchange rates by entering into derivative contracts.
During 2015, the Company’s Affiliates realized $3.2 million of gains and $1.7 million of losses upon the settlement of certain foreign currency forward contracts. Such realized gains and losses are presented in the Consolidated Statements of Income within Revenue, Investment and other (income) expense or Operating expenses, depending on the risk being hedged.