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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2018
Stockholders' Equity Note [Abstract] |
Schedule of ASR activity | The following table summarizes our ASR activity for the prior year comparative period:
| Purchase Period End Date |  | Number of Shares (In thousands) |  | Average Repurchase Price Per Share |  | ASR Amount (In thousands) |
March 2017 ASR | November 2017 |  | 1,326 |  |  | $ | 38.64 |  |  | $ | 50,000 |  | (1)
(1) | We elected to cash settle approximately $2.0 million worth of shares owed back to the counterparty under our March 2017 accelerated share repurchase agreement.

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- Definition Tabular disclosure of accelerated share repurchase (ASR) programs. An ASR is a combination of transactions that permits an entity to purchase a targeted number of shares immediately with the final purchase price of those shares determined by an average market price over a fixed period of time. An accelerated share repurchase program is intended to combine the immediate share retirement benefits of a tender offer with the market impact and pricing benefits of a disciplined daily open market stock repurchase program. ASRs can be disclosed as part of stockholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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