Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 02, 2023	Oct. 02, 2022
Current assets:
Cash and cash equivalents	$ 176,056	$ 185,094
Accounts receivable, net	1,002,087	755,112
Contract assets	125,360	92,405
Prepaid expenses and other current assets	114,440	125,605
Total current assets	1,417,943	1,158,216
Property and equipment, net	81,321	32,316
Right-of-use assets, operating leases	207,218	182,319
Goodwill	1,886,854	1,110,412
Intangible assets, net	225,032	29,163
Deferred tax assets	81,732	47,804
Other non-current assets	73,478	62,546
Total assets	3,973,578	2,622,776
Current liabilities:
Accounts payable	188,807	147,436
Accrued compensation	270,924	237,669
Contract liabilities	351,048	241,340
Short-term lease liabilities, operating leases	68,555	57,865
Current portion of long-term debt	12,505	12,504
Current contingent earn-out liabilities	35,902	28,797
Other current liabilities	284,418	190,406
Total current liabilities	1,212,159	916,017
Deferred tax liabilities	71,425	15,161
Long-term debt	906,875	246,250
Long-term lease liabilities, operating leases	163,919	146,285
Non-current contingent earn-out liabilities	40,697	36,769
Other non-current liabilities	125,714	79,157
Commitments and contingencies (Note 17)
Equity:
Preferred stock - authorized, 2,000 shares of $0.01 par value; no shares issued and outstanding at July 2, 2023 and October 2, 2022	0	0
Common stock - authorized, 150,000 shares of $0.01 par value; issued and outstanding, 53,243 and 52,981 shares at July 2, 2023 and October 2, 2022, respectively	532	530
Additional paid-in capital	17,906	0
Accumulated other comprehensive loss	(137,926)	(208,144)
Retained earnings	1,572,204	1,390,701
Tetra Tech stockholders’ equity	1,452,716	1,183,087
Noncontrolling interests	73	50
Total stockholders' equity	1,452,789	1,183,137
Total liabilities and stockholders' equity	$ 3,973,578	$ 2,622,776