Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
CURRENT ASSETS:
Cash and cash equivalents	$ 1,378,582	$ 1,316,945
Cash in consolidated joint ventures	207,157	263,932
Total cash and cash equivalents	1,585,739	1,580,877
Accounts receivable—net	2,497,147	2,793,307
Contract assets	1,785,179	1,806,458
Prepaid expenses and other current assets	716,070	638,393
Current assets held for sale	0	77,224
Income taxes receivable	146,092	159,500
TOTAL CURRENT ASSETS	6,730,227	7,055,759
PROPERTY AND EQUIPMENT—NET	416,164	354,377
DEFERRED TAX ASSETS—NET	295,249	326,685
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	138,056	138,067
GOODWILL	3,700,619	3,480,155
INTANGIBLE ASSETS—NET	183,284	6,932
OTHER NON-CURRENT ASSETS	254,218	267,528
OPERATING LEASE RIGHT-OF-USE ASSETS	463,479	432,166
NON-CURRENT ASSETS HELD FOR SALE	18,953	0
TOTAL ASSETS	12,200,249	12,061,669
CURRENT LIABILITIES:
Short-term debt	4,069	3,080
Accounts payable	2,260,609	2,560,122
Accrued expenses and other current liabilities	2,490,480	2,385,731
Income taxes payable	23,536	27,418
Contract liabilities	1,087,905	1,298,327
Current liabilities held for sale	0	35,559
Current portion of long-term debt	62,217	63,844
TOTAL CURRENT LIABILITIES	5,928,816	6,374,081
OTHER LONG-TERM LIABILITIES	210,870	156,406
OPERATING LEASE LIABILITIES, NON-CURRENT	515,998	510,573
DEFERRED TAX LIABILITY-NET	67,968	27,509
PENSION BENEFIT OBLIGATIONS	133,193	172,360
LONG-TERM DEBT	2,647,220	2,450,330
TOTAL LIABILITIES	9,504,065	9,691,259
COMMITMENTS AND CONTINGENCIES (Note 18)
AECOM STOCKHOLDERS’ EQUITY:
Common stock—authorized, 300,000,000 shares of $0.01 par value as of September 30, 2024 and 2023; issued and outstanding 132,552,407 and 136,210,883 shares as of September 30, 2024 and 2023, respectively	1,318	1,326
Additional paid-in capital	4,609,126	4,347,197
Accumulated other comprehensive loss	(893,027)	(882,671)
Accumulated deficits	(1,224,833)	(1,281,647)
TOTAL AECOM STOCKHOLDERS’ EQUITY	2,492,584	2,184,205
Noncontrolling interests	203,600	186,205
TOTAL STOCKHOLDERS’ EQUITY	2,696,184	2,370,410
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 12,200,249	$ 12,061,669