Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 01, 2017	Oct. 02, 2016
Current assets:
Cash and cash equivalents	$ 126,981	$ 160,459
Accounts receivable - net	750,784	714,336
Prepaid expenses and other current assets	53,740	46,262
Income taxes receivable	22,497	14,371
Total current assets	954,002	935,428
Property and equipment - net	63,302	67,827
Investments in and advances to unconsolidated joint ventures	1,964	2,064
Goodwill	709,739	717,988
Intangible assets - net	42,167	48,962
Deferred income taxes	1,016	630
Other long-term assets	28,233	27,880
Total assets	1,800,423	1,800,779
Current liabilities:
Accounts payable	136,165	158,773
Accrued compensation	92,300	129,184
Billings in excess of costs on uncompleted contracts	112,695	88,223
Current portion of long-term debt	15,483	15,510
Current contingent earn-out liabilities	4,391	4,296
Other current liabilities	67,611	85,100
Total current liabilities	428,645	481,086
Deferred income taxes	63,470	60,348
Long-term debt	372,721	331,501
Long-term contingent earn-out liabilities	4,461	4,461
Other long-term liabilities	58,382	53,980
Commitments and contingencies (Note 15)
Equity:
Preferred stock - Authorized, 2,000 shares of $0.01 par value; no shares issued and outstanding at January 1, 2017 and October 2, 2016
Common stock - Authorized, 150,000 shares of $0.01 par value; issued and outstanding, 57,219 and 57,042 shares at January 1, 2017 and October 2, 2016, respectively	572	570
Additional paid-in capital	257,417	260,340
Accumulated other comprehensive loss	(143,194)	(128,008)
Retained earnings	757,776	736,357
Tetra Tech stockholders' equity	872,571	869,259
Noncontrolling interests	173	144
Total equity	872,744	869,403
Total liabilities and equity	$ 1,800,423	$ 1,800,779