Equity Transactions

6 Months Ended

Jun. 30, 2016

Equity Transactions [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

Equity Transactions

In August 2013, the Company’s Board of Directors authorized a share repurchase program under which the Company may repurchase up to $200 million of its outstanding common stock. In March 2015, the Company's Board of Directors increased the authorization by $250 million, bringing the total authorization to $450 million. The Company may repurchase shares from time to time on the open market or in privately negotiated transactions or otherwise, depending on market prices and other conditions. No shares have been repurchased in 2016. As of June 30, 2016, the Company cumulatively repurchased 4,247,867 shares of its common stock at an average price of $71.79 per share, for a total of $304.9 million under the authorization. As of June 30, 2016, $145.1 million remained available under the repurchase program. All shares repurchased have been cancelled. For each share of the Company’s stock repurchased, one of the Company’s Operating Partnership units was redeemed. Repurchases of common stock were financed through general corporate funds, including borrowings under existing revolving lines of credit.