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Common Stock Repurchase Program
6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Common Stock Repurchase Program
COMMON STOCK REPURCHASE PROGRAM  

For the three and six months ended June 30, 2018, the Company repurchased 0.4 million and 1.8 million shares of its common stock, respectively, at a cost of $5.9 million and $25.9 million, including commissions, respectively. During the three and six months ended June 30, 2017, the Company repurchased 1.4 million shares of its common stock, for $10.0 million, including commissions. As of June 30, 2018, the Company had remaining authorization to repurchase approximately $192.9 million of its common stock, subject to restrictions under its Credit Agreement.