Equity (Notes)	6 Months Ended
Jun. 30, 2018
Equity [Abstract]
Stockholders' Equity Note Disclosure	Equity Share Repurchases Subject to market conditions, normal trading restrictions, and limitations in our debt covenants, we may make purchases in the open market or through privately negotiated transactions under our stock repurchase program. During the six months ended June 30, 2018, we repurchased 6,066,472 shares of common stock at an aggregate cost of $228.9 million, which is an average cost per share of $37.73. After these repurchases, the remaining dollar value of shares authorized to be purchased under our share repurchase program was approximately $241.3 million at June 30, 2018.

Equity (Notes)

6 Months Ended

Jun. 30, 2018

Equity

Share Repurchases

Subject to market conditions, normal trading restrictions, and limitations in our debt covenants, we may make purchases in the open market or through privately negotiated transactions under our stock repurchase program. During the six months ended June 30, 2018, we repurchased 6,066,472 shares of common stock at an aggregate cost of $228.9 million, which is an average cost per share of $37.73. After these repurchases, the remaining dollar value of shares authorized to be purchased under our share repurchase program was approximately $241.3 million at June 30, 2018.