CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Operating Activities:
Net income	$ 27,210	$ 23,448	$ 39,729	$ 44,187
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	6,879	5,465	11,597	11,297
Changes in operating assets and liabilities	(63,944)	(30,444)	(107,297)	(95,392)
NET CASH USED IN OPERATING ACTIVITIES	(29,855)	(1,531)	(55,971)	(39,908)
Investing Activities:
Acquisition of businesses, net of cash acquired	(20,177)		(53,272)
Purchases of property, plant and equipment	(2,438)	(4,901)	(3,861)	(10,150)
Proceeds from sales or maturities of short-term investments		10,977		17,934
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(22,615)	6,076	(57,133)	7,784
Financing Activities:
Proceeds from short-term borrowings	45,000		70,000
Principal payments on short-term borrowings	(45,000)		(45,000)
Proceeds from long-term borrowings	50,000		50,000
Principal payments on long-term debt	(4,133)	(138)	(8,273)	(4,274)
Dividends paid	(3,208)	(3,208)	(3,208)	(3,208)
Net change in restricted cash	(313)	(68,584)	(84)	(68,584)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	42,346	(71,930)	63,435	(76,066)
Effect of exchange rates on cash	(15,387)	9,010	(13,993)	9,808
NET DECREASE IN CASH AND CASH EQUIVALENTS	(25,511)	(58,375)	(63,662)	(98,382)
Cash and cash equivalents at the beginning of the period	174,116	289,141	212,267	329,148
CASH AND CASH EQUIVALENTS AT THE END OF THE PERIOD	148,605	230,766	148,605	230,766
Supplemental disclosure of non-cash investing and financing activities:
Liability incurred to acquire NEK			19,552
Receivable from the seller of NextBus	$ 682		$ 682