Common Stock	12 Months Ended
Dec. 31, 2017
Stockholders' Equity Note [Abstract]
Common Stock	COMMON STOCK As of December 31, 2017 and December 31, 2016, there were 58,798,428 and 59,946,984 shares of our common stock outstanding, respectively. We have paid quarterly dividends since October 25, 2011. We currently pay a regular quarterly dividend of $0.08 per share. On September 26, 2011, our Board of Directors authorized us to repurchase up to $100.0 million of our outstanding common stock. On December 5, 2013, October 23, 2014, October 28, 2015 and October 25, 2017, our Board of Directors authorized us to repurchase up to an additional $100.0 million, $250.0 million, $200.0 million and $100.0 million of our outstanding common stock, respectively. During 2017, we have repurchased approximately 1.4 million shares of our common stock for approximately $90.8 million. Since the inception of the repurchase programs through December 31, 2017, we have repurchased approximately 12.8 million shares of our common stock for approximately $575.2 million. As of December 31, 2017, there remained authorization for us to repurchase approximately $174.8 million of our shares. The repurchase programs have no expiration date and do not obligate the Company to acquire any particular amount of common stock and may be suspended, recommenced or discontinued at any time or from time to time without prior notice. We may repurchase our shares from time to time to the extent permitted by securities laws and other legal requirements, including provisions in our 2016 Credit Agreement placing limitations on such repurchases. The repurchase programs have been and will be funded from our operations.

COMMON STOCK

As of December 31, 2017 and December 31, 2016, there were 58,798,428 and 59,946,984 shares of our common stock outstanding, respectively.

We have paid quarterly dividends since October 25, 2011. We currently pay a regular quarterly dividend of $0.08 per share.

On September 26, 2011, our Board of Directors authorized us to repurchase up to $100.0 million of our outstanding common stock. On December 5, 2013, October 23, 2014, October 28, 2015 and October 25, 2017, our Board of Directors authorized us to repurchase up to an additional $100.0 million, $250.0 million, $200.0 million and $100.0 million of our outstanding common stock, respectively. During 2017, we have repurchased approximately 1.4 million shares of our common stock for approximately $90.8 million. Since the inception of the repurchase programs through December 31, 2017, we have repurchased approximately 12.8 million shares of our common stock for approximately $575.2 million. As of December 31, 2017, there remained authorization for us to repurchase approximately $174.8 million of our shares. The repurchase programs have no expiration date and do not obligate the Company to acquire any particular amount of common stock and may be suspended, recommenced or discontinued at any time or from time to time without prior notice. We may repurchase our shares from time to time to the extent permitted by securities laws and other legal requirements, including provisions in our 2016 Credit Agreement placing limitations on such repurchases. The repurchase programs have been and will be funded from our operations.