Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 02, 2016	Sep. 27, 2015
Current assets:
Cash and cash equivalents	$ 160,459	$ 135,326
Accounts receivable - net	714,336	636,030
Prepaid expenses and other current assets	46,262	42,125
Income taxes receivable	14,371	10,294
Total current assets	935,428	823,775
Property and equipment - net	67,827	64,906
Investments in and advances to unconsolidated joint ventures	2,064	1,886
Goodwill	717,988	601,379
Intangible assets - net	48,962	40,332
Deferred income taxes	630
Other long-term assets	27,880	26,964
Total assets	1,800,779	1,559,242
Current liabilities:
Accounts payable	158,773	150,284
Accrued compensation	129,184	103,866
Billings in excess of costs on uncompleted contracts	88,223	93,989
Deferred income taxes		20,787
Current portion of long-term debt	15,510	11,904
Current contingent earn-out liabilities	4,296	609
Other current liabilities	85,100	69,003
Total current liabilities	481,086	450,442
Deferred income taxes	60,348	34,759
Long-term debt	331,501	180,972
Long-term contingent earn-out liabilities	4,461	3,560
Other long-term liabilities	53,980	32,711
Commitments and contingencies (Note 18)
Equity:
Preferred stock - Authorized, 2,000 shares of $0.01 par value; no shares issued and outstanding at October 2, 2016 and September 27, 2015
Common stock - Authorized, 150,000 shares of $0.01 par value; issued and outstanding, 57,042 and 59,381 shares at October 2, 2016 and September 27, 2015, respectively	570	594
Additional paid-in capital	260,340	326,593
Accumulated other comprehensive loss	(128,008)	(143,171)
Retained earnings	736,357	672,309
Tetra Tech stockholders' equity	869,259	856,325
Noncontrolling interests	144	473
Total equity	869,403	856,798
Total liabilities and equity	$ 1,800,779	$ 1,559,242