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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events: On July 16, 2016, our Board of Directors authorized our plans to complete another $100 million stock repurchase program in 2016 and to contribute $50 million to our pension plans in 2016, as more fully discussed in the Liquidity section of our Management’s Discussion and Analysis of Financial Condition and Results of Operations.