Subsequent Event (Narrative) (Details) (USD $)	0 Months Ended		0 Months Ended
Jul. 23, 2013 Subsequent Event [Member]	Jun. 30, 2013 ecoATM [Member]	Jul. 23, 2013 ecoATM [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase price of ecoATM			$ 350,000,000
Equity method investment, ownership percentage		23.00%
Cash payment for acquisition of ecoATM			262,900,000
Withdraw under revolving line of credit	$ 100,000,000

This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).

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