Stock Repurchase Program	3 Months Ended
Mar. 31, 2015
Class of Stock Disclosures [Abstract]
Stock Repurchase Program	STOCK REPURCHASE PROGRAM On May 2, 2011, our Board of Directors authorized our stock repurchase program pursuant to which a total of $300 million of our outstanding common stock could be repurchased. On March 8, 2012, our Board of Directors approved a $323.7 million increase to our stock repurchase program and on December 16, 2014, our Board of Directors approved another $257.8 million increase to our stock repurchase program. This latest increase, when taken together with the remaining authorization at that time, brought our total authorization up to $400.0 million. Subject to the approval of our Board of Directors, we may repurchase our common stock under our stock repurchase program from time to time in privately negotiated transactions, through accelerated stock repurchase programs or open market transactions, including pursuant to a trading plan in accordance with Rules 10b5-1 and 10b-18 of the Securities Exchange Act of 1934, as amended. The timing of any repurchases and the actual number of shares of stock repurchased will depend on a variety of factors, including the stock price, corporate and regulatory requirements, restrictions under the Company’s debt obligations, and other market and economic conditions. Our stock repurchase program may be suspended or discontinued at any time. During the three months ended March 31, 2014, we made no share repurchases under our stock repurchase program. As of December 31, 2014, the remaining authorization under our stock repurchase program was $400.0 million. During the three months ended March 31, 2015, we repurchased approximately 1.7 million shares of our common stock for aggregate consideration of $93.8 million under our stock repurchase program. The remaining authorization under our stock repurchase program as of March 31, 2015 was $306.2 million.

STOCK REPURCHASE PROGRAM

On May 2, 2011, our Board of Directors authorized our stock repurchase program pursuant to which a total of $300 million of our outstanding common stock could be repurchased. On March 8, 2012, our Board of Directors approved a $323.7 million increase to our stock repurchase program and on December 16, 2014, our Board of Directors approved another $257.8 million increase to our stock repurchase program. This latest increase, when taken together with the remaining authorization at that time, brought our total authorization up to $400.0 million.

Subject to the approval of our Board of Directors, we may repurchase our common stock under our stock repurchase program from time to time in privately negotiated transactions, through accelerated stock repurchase programs or open market transactions, including pursuant to a trading plan in accordance with Rules 10b5-1 and 10b-18 of the Securities Exchange Act of 1934, as amended. The timing of any repurchases and the actual number of shares of stock repurchased will depend on a variety of factors, including the stock price, corporate and regulatory requirements, restrictions under the Company’s debt obligations, and other market and economic conditions. Our stock repurchase program may be suspended or discontinued at any time.

During the three months ended March 31, 2014, we made no share repurchases under our stock repurchase program. As of December 31, 2014, the remaining authorization under our stock repurchase program was $400.0 million. During the three months ended March 31, 2015, we repurchased approximately 1.7 million shares of our common stock for aggregate consideration of $93.8 million under our stock repurchase program. The remaining authorization under our stock repurchase program as of March 31, 2015 was $306.2 million.