Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 450,328	$ 456,983
Cash in consolidated joint ventures	150,349	136,793
Total cash and cash equivalents	600,677	593,776
Accounts receivable-net	2,342,262	2,395,881
Prepaid expenses and other current assets	168,714	140,764
Deferred tax assets-net	19,949	16,872
TOTAL CURRENT ASSETS	3,131,602	3,147,293
PROPERTY AND EQUIPMENT-NET	270,672	325,917
DEFERRED TAX ASSETS-NET	143,478	126,948
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	80,045	91,049
GOODWILL	1,811,754	1,775,352
INTANGIBLE ASSETS-NET	83,149	96,973
OTHER NON-CURRENT ASSETS	144,923	101,036
TOTAL ASSETS	5,665,623	5,664,568
CURRENT LIABILITIES:
Short-term debt	29,578	1,641
Accounts payable	725,389	761,211
Accrued expenses and other current liabilities	915,282	821,663
Income taxes payable	6,127	12,641
Billings in excess of costs on uncompleted contracts	322,486	320,296
Current portion of long-term debt	54,687	160,950
TOTAL CURRENT LIABILITIES	2,053,549	2,078,402
OTHER LONG-TERM LIABILITIES	448,920	454,537
LONG-TERM DEBT	1,089,060	907,141
TOTAL LIABILITIES	3,591,529	3,440,080
COMMITMENTS AND CONTINGENCIES (Note 19)
AECOM STOCKHOLDERS' EQUITY:
Preferred stock, Class E-authorized, 20 shares; issued and outstanding, 2 and 3 shares as of September 30, 2013 and 2012, respectively; no par value, $1.00 liquidation preference value
Common stock-authorized, 300,000,000 shares of $0.01 par value as of September 30, 2013 and 2012; issued and outstanding 96,016,358 and 107,041,003 shares as of September 30, 2013 and 2012, respectively	960	1,070
Additional paid-in capital	1,809,627	1,741,478
Accumulated other comprehensive loss	(261,299)	(179,173)
Retained earnings	472,155	606,089
TOTAL AECOM STOCKHOLDERS' EQUITY	2,021,443	2,169,464
Noncontrolling interests	52,651	55,024
TOTAL STOCKHOLDERS' EQUITY	2,074,094	2,224,488
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 5,665,623	$ 5,664,568