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Acquisitions - Overview (Details) (USD $)	3 Months Ended		9 Months Ended
Acquisitions - Overview (Details) (USD $)	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2012	Feb. 23, 2012
Redeemable Noncontrolling Interest by Exercise Period [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired				70.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			30.00%
Business Combination, Acquisition Related Costs	$ 1,000,000	$ 300,000	$ 1,300,000
First Exercise Period [Member]
Redeemable Noncontrolling Interest by Exercise Period [Line Items]
Redeemable Noncontrolling Interest, Put or Call Option			10.00%
Second Exercise Period [Member]
Redeemable Noncontrolling Interest by Exercise Period [Line Items]
Redeemable Noncontrolling Interest, Put or Call Option			10.00%
Business Acquisition, Arminak & Associates [Member]
Redeemable Noncontrolling Interest by Exercise Period [Line Items]
Business Combination, Purchase Price				67,350,000

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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