Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 27, 2016	Sep. 27, 2015
Current assets:
Cash and cash equivalents	$ 113,667	$ 135,326
Accounts receivable - net	681,123	636,030
Prepaid expenses and other current assets	56,533	42,125
Income taxes receivable	23,223	10,294
Total current assets	874,546	823,775
Property and equipment - net	74,314	64,906
Investments in and advances to unconsolidated joint ventures	2,011	1,886
Goodwill	716,244	601,379
Intangible assets - net	58,233	40,332
Other long-term assets	27,566	26,964
Total assets	1,752,914	1,559,242
Current liabilities:
Accounts payable	130,473	150,284
Accrued compensation	96,864	103,866
Billings in excess of costs on uncompleted contracts	92,125	93,989
Deferred income taxes	24,986	20,787
Current portion of long-term debt	17,066	11,904
Estimated contingent earn-out liabilities	4,658	609
Other current liabilities	109,499	69,003
Total current liabilities	475,671	450,442
Deferred income taxes	31,759	34,759
Long-term debt	343,145	180,972
Long-term estimated contingent earn-out liabilities	6,162	3,560
Other long-term liabilities	$ 46,027	$ 32,711
Commitments and contingencies (Note 15)
Equity:
Preferred stock - Authorized, 2,000 shares of $0.01 par value; no shares issued and outstanding at March 27, 2016, and September 27, 2015
Common stock - Authorized, 150,000 shares of $0.01 par value; issued and outstanding, 58,077 and 59,381 shares at March 27, 2016, and September 27, 2015, respectively	$ 581	$ 594
Additional paid-in capital	291,500	326,593
Accumulated other comprehensive loss	(132,566)	(143,171)
Retained earnings	689,911	672,309
Tetra Tech stockholders' equity	849,426	856,325
Noncontrolling interests	724	473
Total equity	850,150	856,798
Total liabilities and equity	$ 1,752,914	$ 1,559,242