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Stockholders' Equity | 9 Months Ended
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Sep. 30, 2017
Equity [Abstract] |
Stockholders' Equity | Stockholders’ Equity Preferred Stock On May 5, 2017, we redeemed, with the proceeds of our unsecured debt offering, the outstanding 3.3 million shares of our 6.97 percent Cumulative Redeemable Preferred Stock, Series A (the “Series A Preferred Stock”). The Series A Preferred Stock was redeemed at a price of $50.00 per share, plus accrued and unpaid dividends from May 1, 2017 to, but excluding, the May 5, 2017 redemption date. Common Stock The following table summarizes our common share repurchases and issuances.
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(Shares and per share amounts in actuals) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Shares repurchased related to employee stock-based compensation plans(1)(2) |  | 81,817 |  |  | 371,165 |  |  | 2,666,781 |  |  | 1,763,092 |
Average purchase price per share |  | $ | 10.93 |  |  | $ | 7.22 |  |  | $ | 12.09 |  |  | $ | 6.35 |
Common shares issued(3) |  | 423,112 |  |  | 561,100 |  |  | 5,652,886 |  |  | 3,727,574 |
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(1) | Comprised of shares withheld from stock option exercises and vesting of restricted stock for employees’ tax withholding obligations and shares tendered by employees to satisfy option exercise costs.
(2) | At the present time, we do not intend to initiate a publicly announced share repurchase program.
(3) | Common shares issued under our various compensation and benefit plans.
The closing price of our common stock on September 29, 2017 was $11.47.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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