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Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 18,934	$ 26,247
Accounts receivable	186,279	151,578
Retainage	29,214	24,312
Inventories	21,543	20,966
Costs in Excess of Billings, Current	29,860	31,446
Prepaid expenses and other current assets	10,625	8,144
Total current assets	296,455	262,693
Property and equipment, net	25,746	25,364
Goodwill	50,622	50,702
Intangible assets, net	26,623	30,590
Deferred tax assets	40,874	46,580
Other non-current assets	4,938	6,065
Total assets	445,258	421,994
Accounts payable and accrued expenses	152,909	130,591
Billings in excess of costs and estimated earnings	40,563	33,826
Total current liabilities	193,472	164,417
Long-term debt	299	29,564
Other non-current liabilities	1,945	4,374
Total liabilities	195,716	198,355
Noncontrolling interest	3,294	3,232
Preferred stock, value	0	0
Common stock, value	220	220
Treasury stock, value	(12,483)	(8,937)
Additional paid-in capital	192,911	196,810
Retained earnings	65,600	32,314
Total stockholders' equity	246,248	220,407
Total liabilities and stockholders' equity	$ 445,258	$ 421,994

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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