XML 30 R14.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Earnings Per Share | 12 Months Ended
--- | ---
Dec. 31, 2023
Earnings Per Share [Abstract] |
Earnings Per Share | 4. Earnings Per Share: Basic earnings per share are computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the sum of the weighted-average number of shares and the number of equivalent shares assumed outstanding, if dilutive, under our stock-based compensation plans. The computations of basic and diluted earnings per share were as follows (in millions, except per share data):
| For the Years Ended December 31,
| 2023 |  | 2022 |  | 2021
Net income | $ | 590.1 |  |  | $ | 497.1 |  |  | $ | 464.0 |
Weighted-average shares outstanding – basic | 35.5 |  |  | 35.7 |  |  | 37.2 |
Add: Potential effect of diluted securities attributable to stock-based payments | 0.2 |  |  | 0.1 |  |  | 0.3 |
Weighted-average shares outstanding – diluted | $ | 35.7 |  |  | $ | 35.8 |  |  | $ | 37.5 |
Earnings per share - Basic: |  |  |  |  |
Net income | $ | 16.61 |  |  | $ | 13.92 |  |  | $ | 12.47 |
Earnings per share - Diluted: |  |  |  |  |
Net income | $ | 16.54 |  |  | $ | 13.88 |  |  | $ | 12.39 |

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

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//260/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-3 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration