XML 62 R48.htm IDEA: XBRL DOCUMENT
v3.23.3

Quarterly Financial Information – Unaudited (Tables) | 12 Months Ended
--- | ---
Oct. 01, 2023
Quarterly Financial Information Disclosure [Abstract] |
Schedule of unaudited quarterly data |
| First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
Fiscal Year 2023 |  |  |  |  |  |  |
Revenue | $ | 894,766 |  |  | $ | 1,158,226 |  |  | $ | 1,208,947 |  |  | $ | 1,260,611 |
Income from operations | 92,050 |  |  | 61,011 |  |  | 97,675 |  |  | 107,377 |
Net income attributable to Tetra Tech | 116,706 |  |  | 42,830 |  |  | 60,235 |  |  | 53,649 |
Earnings per share attributable to Tetra Tech: |  |  |  |  |  |  |
Basic | $ | 2.20 |  |  | $ | 0.80 |  |  | $ | 1.13 |  |  | $ | 1.01 |
Diluted | $ | 2.18 |  |  | $ | 0.80 |  |  | $ | 1.12 |  |  | $ | 1.00 |
Weighted-average common shares outstanding: |  |  |  |  |  |  |
Basic | 53,069 |  |  | 53,227 |  |  | 53,231 |  |  | 53,247 |
Diluted | 53,529 |  |  | 53,627 |  |  | 53,653 |  |  | 53,702 |
Fiscal Year 2022 |  |  |  |  |  |  |
Revenue | $ | 858,510 |  |  | $ | 852,744 |  |  | $ | 890,231 |  |  | $ | 902,562 |
Income from operations | 87,220 |  |  | 74,520 |  |  | 83,905 |  |  | 94,802 |
Net income attributable to Tetra Tech | 68,489 |  |  | 53,040 |  |  | 58,650 |  |  | 82,947 |
Earnings per share attributable to Tetra Tech: |  |  |  |  |  |  |
Basic | $ | 1.27 |  |  | $ | 0.99 |  |  | $ | 1.10 |  |  | $ | 1.56 |
Diluted | $ | 1.25 |  |  | $ | 0.98 |  |  | $ | 1.09 |  |  | $ | 1.55 |
Weighted-average common shares outstanding: |  |  |  |  |  |  |
Basic | 53,937 |  |  | 53,834 |  |  | 53,507 |  |  | 53,148 |
Diluted | 54,577 |  |  | 54,346 |  |  | 54,006 |  |  | 53,667 |

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

X
- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 270 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482964/270-10-50-1 + Details
Name: | us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration