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Repurchases of Common Stock | 12 Months Ended
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Dec. 31, 2018
Equity [Abstract] |
Repurchases of Common Stock | REPURCHASES OF COMMON STOCK Our Board of Directors has authorized the repurchase of up to 68.0 million shares of our common stock in the open market or in negotiated transactions pursuant to the Company’s share repurchase program. We believe that the repurchase of our common stock is a favorable means of returning value to our shareholders, and we also repurchase to offset the dilutive effect of our share-based compensation programs. Repurchases of our common stock may vary depending upon the level of other investing activities and the share price. As of December 31, 2018, there are approximately 3.2 million remaining shares available for repurchase under this authorization. We primarily acquire shares by means of repurchases in the open market. However, we also acquire shares that are surrendered by employees in payment for the minimum required withholding taxes due on the vesting of restricted stock units and the settlement of deferred stock units, otherwise referred to herein as employee surrenders. The following is a summary of our open market common stock repurchases and shares acquired through employee surrender for the years ended December 31, 2018, 2017 and 2016 (in thousands, except per share amounts):
﻿ |  | For the Years Ended December 31,
﻿ |  | 2018 |  | 2017 |  | 2016
﻿ |  |  |  |  |  |  |  |  |
Shares repurchased in the open market |  | 1,773 |  |  | 1,749 |  |  | 3,071 |
Shares acquired through employee surrender for statutory tax withholding |  | 52 |  |  | 57 |  |  | 60 |
Total shares repurchased |  | 1,825 |  |  | 1,806 |  |  | 3,131 |
﻿ |  |  |  |  |  |
Cost of share repurchased in the open market |  | $ | 368,691 |  |  | $ | 270,297 |  |  | $ | 313,072 |
Cost of shares for employee surrenders |  | 9,375 |  |  | 8,074 |  |  | 4,372 |
Total cost of shares |  | $ | 378,066 |  |  | $ | 278,371 |  |  | $ | 317,444 |
﻿ |  |  |  |  |  |
Average cost per share - open market repurchases |  | $ | 207.92 |  |  | $ | 154.51 |  |  | $ | 101.96 |
Average cost per share - employee surrenders |  | $ | 182.18 |  |  | $ | 142.55 |  |  | $ | 73.04 |
Average cost per share - total |  | $ | 207.19 |  |  | $ | 154.13 |  |  | $ | 101.40 |

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- Definition The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2208821 + Details
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