Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Oct. 01, 2017
Current assets:
Cash and cash equivalents	$ 173,025	$ 189,975
Accounts receivable – net	846,201	788,767
Prepaid expenses and other current assets	65,856	49,969
Income taxes receivable	5,589	13,312
Total current assets	1,090,671	1,042,023
Property and equipment – net	56,929	56,835
Investments in unconsolidated joint ventures	2,419	2,700
Goodwill	763,455	740,886
Intangible assets – net	24,533	26,688
Deferred tax assets	0	1,763
Other long-term assets	32,980	31,850
Total assets	1,970,987	1,902,745
Current liabilities:
Accounts payable	144,628	177,638
Accrued compensation	100,833	143,408
Billings in excess of costs on uncompleted contracts	132,930	117,499
Current portion of long-term debt	15,511	15,588
Current contingent earn-out liabilities	7,868	2,024
Other current liabilities	82,146	81,511
Total current liabilities	483,916	537,668
Deferred tax liabilities	39,240	43,781
Long-term debt	432,431	341,283
Long-term contingent earn-out liabilities	13,218	414
Other long-term liabilities	55,061	50,975
Commitments and contingencies (Note 14)
Equity:
Preferred stock - authorized, 2,000 shares of $0.01 par value; no shares issued and outstanding at December 31, 2017 and October 1, 2017	0	0
Common stock - authorized, 150,000 shares of $0.01 par value; issued and outstanding, 55,988 and 55,873 shares at December 31, 2017 and October 1, 2017, respectively	560	559
Additional paid-in capital	175,293	193,835
Accumulated other comprehensive loss	(101,901)	(98,500)
Retained earnings	873,004	832,559
Tetra Tech stockholders’ equity	946,956	928,453
Noncontrolling interests	165	171
Total stockholders' equity	947,121	928,624
Total liabilities and stockholders' equity	$ 1,970,987	$ 1,902,745