Business Acquisition Potential Cash Indemnification Claims

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Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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Amount of potential cash payments that could result from the contingent consideration arrangement.

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Amount of cash paid to acquire the entity.

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Fair Value of the liabilities incurred by the acquirer to former owners of the acquiree, including the fair value of any contingent consideration. If liabilities transferred as consideration remain within the combined entity after the business combination (for example, because the assets or liabilities were transferred to the acquiree rather than to its former owners), and the acquirer therefore retains control of them; in that situation, the acquirer measures those liabilities at their carrying amounts immediately before the acquisition date.

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

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Month, date and year in which the acquirer obtains control of the acquiree.

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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Name of the acquired entity.

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Percentage of voting equity interests acquired in the business combination.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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This element represents a description of the primary reason for the business combination which may consist of general categories such as top-line growth, synergistic benefits, market share, and diversification and the more detailed factors that might apply.

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This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

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Acquisition (Narrative) (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended			12 Months Ended				3 Months Ended	12 Months Ended
	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Maximum [Member] Quadrem International Holdings, Ltd. [Member] Performance Condition [Member]	Sep. 30, 2011 Minimum [Member] Quadrem International Holdings, Ltd. [Member] Performance Condition [Member]	Jan. 27, 2011 Quadrem International Holdings, Ltd. [Member]	Sep. 30, 2011 Quadrem International Holdings, Ltd. [Member]	Sep. 30, 2011 Quadrem International Holdings, Ltd. [Member] Escrow Deposit [Member]	Sep. 30, 2011 Quadrem International Holdings, Ltd. [Member] Performance Condition [Member]	Sep. 30, 2011 Quadrem International Holdings, Ltd. [Member] Remaining Three Years Time Period For Release Of Amount [Member]
Effective date of acquisition								January 27, 2011
Percentage of business acquired								100.00%
Acquired entity name								Quadrem International Holdings, Ltd
Acquired entity description								This business ("Quadrem") consists of a global electronic marketplace to facilitate the procurement of goods and services by companies from their supplier communities.
Reason for business acquisition								The Company believes the acquisition of Quadrem will enable us to further expand our network volume and reach, accelerate growth, and extend better commerce to more companies in more regions of the globe.
Contingent consideration, fair value								$ 171,600,000
Contingent consideration, cash								83,800,000
Contingent consideration, share value								64,700,000
Contingent consideration, shares								2.6
Contingent payment, payable in cash or shares								23,100,000
Contingent payment range						25,000,000	0
Potential cash indemnification claims										40,000,000	25,000,000	15,000,000
Liability as of the acquisition date									23,100,000
Increase in liability				236,000	243,000				440,000
Acquisition-related costs	$ 1,481,000	$ 990,000	$ 663,000	$ 2,471,000	$ 663,000				$ 2,500,000