XML 48 R36.htm IDEA: XBRL DOCUMENT
v3.24.4

Earnings per Share ("EPS") (Tables) | 3 Months Ended
--- | ---
Dec. 29, 2024
Earnings Per Share [Abstract] |
Schedule of number of weighted-average shares used to compute basic and diluted EPS | The following table presents the number of weighted-average shares used to compute basic and diluted EPS (in thousands, except per share data):
| Three Months Ended |  |
| December 29, 2024 |  | December 31, 2023 |  |  |  |
Net income attributable to Tetra Tech | $ | 747 |  |  | $ | 74,972 |  |  |  |  |
Weighted-average common shares outstanding – basic | 267,854 |  |  | 266,585 |  |  |  |  |
Effect of dilutive stock options and unvested restricted stock | 2,160 |  |  | 2,105 |  |  |  |  |
Shares issuable assuming conversion of convertible notes | 1,872 |  |  | — |  |  |  |  |
Weighted-average common shares outstanding – diluted | 271,886 |  |  | 268,690 |  |  |  |  |
Earnings per share attributable to Tetra Tech: |  |  |  |  |  |  |
Basic | $ | — |  |  | $ | 0.28 |  |  |  |  |
Diluted | $ | — |  |  | $ | 0.28 |  |  |  |  |

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