XML 40 R28.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Earnings Per Share ("EPS") (Tables) | 6 Months Ended
--- | ---
Mar. 27, 2016
Earnings Per Share ("EPS") |
Schedule of number of weighted-average shares used to compute basic and diluted EPS |
|  | Three Months Ended |  | Six Months Ended |
|  | March 27, 2016 |  | March 29, 2015 |  | March 27, 2016 |  | March 29, 2015 |
|  | (in thousands, except per share data) |
Net income attributable to Tetra Tech |  | $ | 3,744 |  | $ | 19,017 |  | $ | 26,983 |  | 44,592 |
Weighted-average common shares outstanding — basic |  | 58,451 |  | 61,153 |  | 58,819 |  | 61,816 |
Effect of dilutive stock options and unvested restricted stock |  | 680 |  | 570 |  | 708 |  | 615 |
Weighted-average common stock outstanding — diluted |  | 59,131 |  | 61,723 |  | 59,527 |  | 62,431 |
Earnings per share attributable to Tetra Tech: |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.06 |  | $ | 0.31 |  | $ | 0.46 |  | $ | 0.72 |
Diluted |  | $ | 0.06 |  | $ | 0.31 |  | $ | 0.45 |  | $ | 0.71 |

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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration