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Stock-Based Compensation	9 Months Ended
Stock-Based Compensation	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation We currently have one stock-based compensation plan in effect, under which we have issued options and restricted stock units to our officers, other key employees and outside directors. During the first nine months of 2015, 167,946 restricted stock units were granted to certain of our officers, other key employees and outside directors. The fair value of these restricted stock units at the grant date was $9.6 million, which is being amortized ratably over the respective vesting period from the grant date. At our annual meeting of stockholders held on May 26, 2015, our stockholders approved the 2004 Stock Incentive Plan, which, among other things, increased the number of shares of our common stock available for awards under the 2004 Stock Incentive Plan by an additional 3,000,000 shares. The total number of shares of our common stock available for issuance under the 2004 Stock Incentive Plan as of September 30, 2015 was 3,647,406.