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Stockholders' Equity - Incentive and Other (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions | 12 Months Ended | 153 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | May 31, 2017 | May 31, 2012 | Mar. 29, 2007
Share Repurchase Program |  |  |  |  |  |  |
Share repurchase | $ 19,550 | $ 28,533 | $ 9,007 |  |  |  |
2012 Equity Incentive Plan |  |  |  |  |  |  |
Stockholders' Equity |  |  |  |  |  |  |
Number of shares authorized and reserved for issuance |  |  |  |  |  | 5.1 |
Number of shares available for issuance | 2.9 |  |  | 2.9 |  |  |
2017 Omnibus Incentive Plan |  |  |  |  |  |  |
Stockholders' Equity |  |  |  |  |  |  |
Number of shares authorized and reserved for issuance |  |  |  |  | 2.9 |  |
Number of shares available for issuance | 2.4 |  |  | 2.4 |  |  |
Stock Repurchase Program 2007 |  |  |  |  |  |  |
Share Repurchase Program |  |  |  |  |  |  |
Number of shares of outstanding common stock authorized to be acquired under a stock repurchase program | 9.5 |  |  | 9.5 |  |  | 1.0
Number of additional shares of outstanding common stock authorized to be acquired under a stock repurchase program | 0.8 |  |  | 0.8 |  |  |
Share repurchase (in shares) | 0.4 |  |  | 8.6 |  |  |
Average price (in dollars per share) | $ 45.58 |  |  | $ 17.70 |  |  |
Repurchased carrying basis | $ 19,600 |  |  | $ 19,600 |  |  |

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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