Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Consolidated Statements of Comprehensive Income
Net income	$ 48,513	$ 45,278	$ 109,790	$ 78,300
Other comprehensive income (loss), net of tax:
Net unrealized gain on derivatives, net of tax	17,087	1,064	20,636	1,953
Foreign currency translation adjustments	9,096	(20,065)	3,899	31,886
Pension adjustments, net of tax	9,030	42	11,763	(10,711)
Other comprehensive income (loss), net of tax	35,213	(18,959)	36,298	23,128
Comprehensive income, net of tax	83,726	26,319	146,088	101,428
Noncontrolling interests in comprehensive income of consolidated subsidiaries, net of tax	(7,084)	(5,904)	(6,693)	(13,003)
Comprehensive income attributable to AECOM, net of tax	$ 76,642	$ 20,415	$ 139,395	$ 88,425