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Shareholders' Equity	3 Months Ended
	Mar. 31, 2016
Shareholders' Equity [Abstract]
Shareholders' Equity	6. Shareholders’ Equity The Company repurchased 263,770 shares of its common stock for an aggregate cost of $15.4 million during the three months ended March 31, 2016, and 951,219 shares of its common stock for an aggregate cost of $60.8 million during the three months ended March 31, 2015. The amount of treasury stock purchases reported in the Company’s Consolidated Condensed Statements of Cash Flow represent purchases that have settled within each respective quarter.

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- Definition

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

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