XML 43 R33.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Earnings Per Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule of Loss Per Share | The following table presents the components of basic and diluted earnings (loss) per share (in thousands, except per share amounts):
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Net earnings (loss) attributable to Kirby |  | $ | 222,935 |  |  | $ | 122,291 |  |  | $ | (246,954 | )
Undistributed earnings allocated to restricted shares |  |  | (62 | ) |  |  | (33 | ) |  |  | — |
Earnings (loss) available to Kirby common stockholders — basic |  |  | 222,873 |  |  |  | 122,258 |  |  |  | (246,954 | )
Undistributed earnings allocated to restricted shares |  |  | 62 |  |  |  | 33 |  |  |  | — |
Undistributed earnings reallocated to restricted shares |  |  | (62 | ) |  |  | (33 | ) |  |  | — |
Earnings (loss) available to Kirby common stockholders — diluted |  | $ | 222,873 |  |  | $ | 122,258 |  |  | $ | (246,954 | )
Shares outstanding: |  |  |  |  |  |  |  |  |
Weighted average common stock issued and outstanding |  |  | 59,548 |  |  |  | 60,055 |  |  |  | 60,099 |
Weighted average unvested restricted stock |  |  | (17 | ) |  |  | (17 | ) |  |  | (46 | )
Weighted average common stock outstanding — basic |  |  | 59,531 |  |  |  | 60,038 |  |  |  | 60,053 |
Dilutive effect of stock options and restricted stock units |  |  | 326 |  |  |  | 291 |  |  |  | — |
Weighted average common stock outstanding — diluted |  |  | 59,857 |  |  |  | 60,329 |  |  |  | 60,053 |
Net earnings (loss) per share attributable to Kirby common stockholders: |  |  |  |  |  |  |  |  |
Basic |  | $ | 3.74 |  |  | $ | 2.04 |  |  | $ | (4.11 | )
Diluted |  | $ | 3.72 |  |  | $ | 2.03 |  |  | $ | (4.11 | )

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 Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration