XML 49 R33.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Repurchases Of Common Stock (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Equity [Abstract] |
Schedule Of Common Stock Repurchases | The following is a summary of our open market common stock repurchases, reported on a trade date basis, and shares acquired through employee surrender for the three and six months ended June 30, 2018 and 2017 (in thousands, except per share amounts):
﻿ | For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
﻿ | 2018 |  | 2017 |  | 2018 |  | 2017
﻿ |  |  |  |  |  |  |  |  |
Shares repurchased in the open market | 517 |  |  | 696 |  |  | 982 |  |  | 1,086 |
Shares acquired through employee surrender for statutory tax withholding | 1 |  |  | 1 |  |  | 49 |  |  | 53 |
Total shares repurchased | 518 |  |  | 697 |  |  | 1,031 |  |  | 1,139 |
﻿ |  |  |  |  |  |  |
Cost of shares repurchased in the open market | $ | 105,774 |  |  | $ | 114,163 |  |  | $ | 191,962 |  |  | $ | 164,907 |
Cost of shares for employee surrenders | 165 |  |  | 156 |  |  | 8,720 |  |  | 7,459 |
Total cost of shares | $ | 105,939 |  |  | $ | 114,319 |  |  | $ | 200,682 |  |  | $ | 172,366 |
﻿ |  |  |  |  |  |  |
Average cost per share - open market repurchases | $ | 204.69 |  |  | $ | 163.96 |  |  | $ | 195.47 |  |  | $ | 151.81 |
Average cost per share - employee surrenders | $ | 215.36 |  |  | $ | 168.25 |  |  | $ | 179.41 |  |  | $ | 141.56 |
Average cost per share - total | $ | 204.71 |  |  | $ | 163.97 |  |  | $ | 194.71 |  |  | $ | 151.34 |

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 + Details
Name: | us-gaap_ScheduleOfTreasuryStockByClassTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration