Earnings per Share ("EPS") (Tables)

9 Months Ended

Jul. 02, 2023

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				Nine Months Ended
	July 2, 2023		July 3, 2022		July 2, 2023		July 3, 2022
Net income attributable to Tetra Tech	$	60,235	$	58,650	$	219,771	$	180,179
Weighted-average common shares outstanding – basic	53,231		53,507		53,188		53,777
Effect of dilutive stock options and unvested restricted stock	422		499		427		551
Weighted-average common shares outstanding – diluted	53,653		54,006		53,615		54,328
Earnings per share attributable to Tetra Tech:
Basic	$	1.13	$	1.10	$	4.13	$	3.35
Diluted	$	1.12	$	1.09	$	4.10	$	3.32