CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 27, 2018	Jul. 29, 2017	Jul. 30, 2016
Current assets:
Cash and equivalents	$ 84,029	$ 38,608	$ 33,787
Accounts receivable, net	318,684	369,800	328,030
Costs and estimated earnings in excess of billings	369,472	389,286	376,972
Inventories	79,039	83,204	73,606
Deferred tax assets, net	0	26,524	22,733
Income tax receivable	13,852	7,493	0
Other current assets	39,710	23,603	16,106
Total current assets	904,786	938,518	851,234
Property and equipment, net	414,768	422,107	326,670
Goodwill	321,743	321,748	310,157
Intangible assets, net	171,469	183,561	197,879
Other	28,190	33,373	33,776
Total non-current assets	936,170	960,789	868,482
Total assets	1,840,956	1,899,307	1,719,716
Current liabilities:
Accounts payable	92,361	132,974	115,492
Current portion of debt	26,469	21,656	13,125
Billings in excess of costs and estimated earnings	6,480	9,284	19,557
Accrued insurance claims	53,890	39,909	36,844
Income taxes payable	755	1,112	15,307
Other accrued liabilities	79,657	113,603	122,302
Total current liabilities	259,612	318,538	322,627
Long-term debt	733,843	738,265	706,202
Accrued insurance claims	59,385	62,007	52,835
Deferred tax liabilities, net non-current	57,428	103,626	76,587
Other liabilities	5,692	5,288	4,178
Total liabilities	1,115,960	1,227,724	1,162,429
COMMITMENTS AND CONTINGENCIES, Note 18
Stockholders’ equity:
Preferred stock, par value $1.00 per share: 1,000,000 shares authorized: no shares issued and outstanding	0	0	0
Common stock, par value $0.33 1/3 per share: 150,000,000 shares authorized: 31,185,669, 31,087,285 and 31,420,310 issued and outstanding, respectively	10,395	10,362	10,473
Additional paid-in capital	6,170	10,092	10,208
Accumulated other comprehensive loss	(1,146)	(1,158)	(1,274)
Retained earnings	709,577	652,287	537,880
Total stockholders’ equity	724,996	671,583	557,287
Total liabilities and stockholders’ equity	$ 1,840,956	$ 1,899,307	$ 1,719,716