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Capital Stock | 12 Months Ended
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Dec. 31, 2017
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |
Capital Stock | CAPITAL STOCK AND WARRANTS Our Restated Certificate of Incorporation, as amended during 2017, authorizes us to issue 250,000,000 shares of common stock, par value $.01 per share, and 5,000,000 shares of preferred stock, par value $.01 per share. As of December 31, 2017, we had 115,877,704 shares of common stock outstanding, with 2,638,093 shares held in treasury, and no shares of preferred stock outstanding. The voting, dividend, and liquidation rights of the holders of common stock are subject to the rights of the holders of preferred stock. The holders of common stock are entitled to one vote for each share held. There is no cumulative voting. Dividends may be declared and paid on common stock as determined by our Board of Directors, subject to any preferential dividend rights of any then outstanding preferred stock. Issuances of Common Stock. On June 21, 2016, we completed an underwritten public offering of 11.5 million shares of our common stock, which included 1.5 million shares of common stock pursuant to an option granted to the underwriters to purchase additional shares, at a price to the public of $5.50 per share ($5.2525 per share net of underwriting discounts). We utilized the net offering proceeds of $60.2 million to repay the remaining balance outstanding of certain senior secured notes, to reduce the balance outstanding under our Credit Agreement, to pay offering related discounts and expenses, and for general corporate purposes. The offering was made pursuant to a shelf registration statement filed with the Securities and Exchange Commission on March 23, 2016. On December 14, 2016, we completed a firm commitment underwritten offering of 22.3 million shares of our common stock at a price to the public of $5.15 per share ($4.9183 per share net of underwriting discounts) and the Warrants to purchase 11.2 million shares of our common stock at an exercise price of $5.75 per share prior to the 60-month expiration date of the Warrants. The 22.3 million shares of our common stock issued and the Warrants to purchase 11.2 million shares of our common stock includes 2.9 million shares of our common stock and Warrants to acquire an additional 1.5 million shares of our common stock related to the exercise of an option granted to the underwriters. We utilized the net offering proceeds of $109.7 million to repay outstanding indebtedness and other offering expenses. As of December 31, 2017, all of the Warrants remain outstanding. The Warrants were issued pursuant to a Warrant Agreement, dated December 14, 2016, and are exercisable immediately upon issuance and from time to time thereafter through and including the fifth year anniversary of the initial issuance date. At the request of a holder following a change of control, we or the successor entity will exchange such Warrant for consideration in accordance with a Black Scholes option pricing model in the form of, at our election, Rights (as defined in the Warrant Agreement) or cash. Similarly, within a period of time prior to the consummation of a change of control, we have the right to redeem all of the Warrants for cash in an amount determined in accordance with a Black-Scholes option pricing model. The Warrants are accounted for as a derivative liability in accordance with ASC 815 "Derivatives and Hedging" and accordingly are carried at their fair value, with changes in fair value included in Other Expense in the period of change. As of December 31, 2017 and 2016, the fair value of the Warrants was $13.2 million and $18.5 million, respectively. Changes in fair value during the year, included a $5.3 million change in fair value was credited to earnings during 2017 and a $2.1 million change in fair value charged to earnings during 2016. In connection with the Warrants, approximately $0.9 million of the $6.5 million total issuance costs, including underwriting discounts, associated with the December 2016 offering was charged to earnings. A summary of the activity of our common shares outstanding and treasury shares held for the three year period ending December 31, 2017, is as follows:
Common Shares Outstanding |  | Year Ended December 31,
|  | 2017 |  | 2016 |  | 2015
At beginning of period |  | 114,985,072 |  |  | 80,256,544 |  |  | 79,649,946 |
Exercise of common stock options, net |  | — |  |  | 636,937 |  |  | 67,808 |
Grants of restricted stock, net |  | 892,632 |  |  | 281,591 |  |  | 538,790 |
Issuance of common stock |  | — |  |  | 33,810,000 |  |  | — |
At end of period |  | 115,877,704 |  |  | 114,985,072 |  |  | 80,256,544 |
Treasury Shares Held |  | Year Ended December 31,
|  | 2017 |  | 2016 |  | 2015
At beginning of period |  | 2,536,421 |  |  | 2,281,495 |  |  | 2,224,285 |
Shares received upon exercise of common stock options |  | — |  |  | 13,854 |  |  | 36,818 |
Shares received upon vesting of restricted stock, net |  | 101,672 |  |  | 241,072 |  |  | 20,392 |
At end of period |  | 2,638,093 |  |  | 2,536,421 |  |  | 2,281,495 |
Our Board of Directors is empowered, without approval of the stockholders, to cause shares of preferred stock to be issued in one or more series and to establish the number of shares to be included in each such series and the rights, powers, preferences, and limitations of each series. Because the Board of Directors has the power to establish the preferences and rights of each series, it may afford the holders of any series of preferred stock preferences, powers and rights, voting or otherwise, senior to the rights of holders of common stock. The issuance of the preferred stock could have the effect of delaying or preventing a change in control of the Company. Upon our dissolution or liquidation, whether voluntary or involuntary, holders of our common stock will be entitled to receive all of our assets available for distribution to our stockholders, subject to any preferential rights of any then outstanding preferred stock. In January 2004, our Board of Directors authorized the repurchase of up to $20.0 million of our common stock. During the three years ending December 31, 2017, we made no purchases of our common stock pursuant to this authorization.

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- Definition Tabular disclosure of an entity's capital units or capital shares, including the value of capital units or capital shares, units authorized, units outstanding and other information necessary to a fair presentation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + Details
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