Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2025	Sep. 30, 2024
CURRENT ASSETS:
Cash and cash equivalents	$ 1,539,369	$ 1,316,945
Cash in consolidated joint ventures	254,708	263,932
Total cash and cash equivalents	1,794,077	1,580,877
Accounts receivable—net	2,597,746	2,793,307
Contract assets	1,922,253	1,806,458
Prepaid expenses and other current assets	854,896	758,693
Current assets held for sale	0	77,224
Income taxes receivable	98,061	159,500
TOTAL CURRENT ASSETS	7,267,033	7,176,059
PROPERTY AND EQUIPMENT—NET	403,936	354,377
DEFERRED TAX ASSETS—NET	339,855	326,685
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	149,195	138,067
GOODWILL	3,486,713	3,480,155
INTANGIBLE ASSETS—NET	5,183	6,932
OTHER NON-CURRENT ASSETS	120,475	147,228
OPERATING LEASE RIGHT-OF-USE ASSETS	462,863	432,166
NON - CURRENT ASSETS HELD FOR SALE	16,892	0
TOTAL ASSETS	12,252,145	12,061,669
CURRENT LIABILITIES:
Short-term debt	4,676	3,080
Accounts payable	2,451,248	2,560,122
Accrued expenses and other current liabilities	2,498,168	2,385,731
Income taxes payable	40,341	27,418
Contract liabilities	1,165,044	1,298,327
Current liabilities held for sale	0	35,559
Current portion of long-term debt	68,499	63,844
TOTAL CURRENT LIABILITIES	6,227,976	6,374,081
OTHER LONG-TERM LIABILITIES	158,597	156,406
OPERATING LEASE LIABILITIES, NON-CURRENT	521,492	510,573
DEFERRED TAX LIABILITY-NET	44,576	27,509
PENSION BENEFIT OBLIGATIONS	145,044	172,360
LONG-TERM DEBT	2,455,855	2,450,330
TOTAL LIABILITIES	9,553,540	9,691,259
COMMITMENTS AND CONTINGENCIES (Note 15)
AECOM STOCKHOLDERS’ EQUITY:
Common stock-authorized, 300,000,000 shares of $0.01 par value as of June 30, 2025 and September 30, 2024; issued and outstanding 132,318,294 and 132,552,407 shares as of June 30, 2025 and September 30, 2024, respectively	1,323	1,326
Additional paid-in capital	4,426,087	4,347,197
Accumulated other comprehensive loss	(874,861)	(882,671)
Accumulated deficits	(1,060,209)	(1,281,647)
TOTAL AECOM STOCKHOLDERS’ EQUITY	2,492,340	2,184,205
Noncontrolling interests	206,265	186,205
TOTAL STOCKHOLDERS’ EQUITY	2,698,605	2,370,410
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 12,252,145	$ 12,061,669