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Acquisitions (Acquisition of Global 360 Holding Corp) (Details) (USD $) | 12 Months Ended | 0 Months Ended | 12 Months Ended |
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Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2010 | Jul. 13, 2011 Global 360 Holding Corporation [Member] | Jun. 30, 2012 Global 360 Holding Corporation [Member] | Jun. 30, 2012 Global 360 Holding Corporation [Member] | Jun. 30, 2011 Global 360 Holding Corporation [Member] | Jul. 13, 2011 Global 360 Holding Corporation [Member] Customer Assets [Member] | Jul. 13, 2011 Global 360 Holding Corporation [Member] Technology Assets [Member]
Business Acquisition, Cost of Acquired Entity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration paid |  |  |  | $ 256,597,000 |  |  |  |  |  |  |  |
Acquisition related costs |  |  |  |  |  | 924,000 | 924,000 |  |  |  |  |
Business Acquisition, Purchase Price Allocation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  | 38,249,000 |  |  |  |  |  |  |  |
Cash acquired from acquisition |  |  |  | 10,944,000 |  |  |  |  |  |  |  |
Non-current assets |  |  |  | 6,289,000 |  |  |  |  |  |  |  |
Intangible assets |  |  |  |  |  |  |  |  |  |  | 58,100,000 | 40,600,000
Total liabilities assumed |  |  |  | (88,575,000) | [1] |  |  |  |  |  |  |
Total identifiable net assets |  |  |  | 54,663,000 |  |  |  |  |  |  |  |
Goodwill |  |  |  | 201,934,000 |  |  |  |  |  |  |  |
Fair value of total consideration transferred |  |  |  | 256,597,000 |  |  |  |  |  |  |  |
Deferred revenue |  |  |  | 24,300,000 |  |  |  |  |  |  |  |
Amount held in escrow |  |  |  |  |  | 20,000,000 | 20,000,000 |  |  |  |  |
Goodwill expected to be deductible for tax purposes |  |  |  | 0 |  |  |  |  |  |  |  |
Fair value of accounts receivable acquired |  |  |  | 11,900,000 |  |  |  |  |  |  |  |
Acquired accounts receivable, gross |  |  |  | 12,800,000 |  |  |  |  |  |  |  |
Acquired accounts receivable, expected to be uncollectible |  |  |  |  |  | 900,000 | 900,000 |  |  |  |  |
Business Acquisition, Pro Forma Information [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Actual revenues |  |  |  |  |  | 74,900,000 |  |  |  |  |  |
Total revenues |  |  |  |  |  |  | 1,209,809,000 |  | 1,125,366,000 |  |  |
Net income |  |  |  |  |  |  | 128,924,000 | [2] | 107,636,000 | [2] |  |
Total special charges (recoveries) | $ 24,523,000 | $ 15,576,000 | $ 42,008,000 |  |  |  |  |  |  |  |  |
[1] | Included in total liabilities assumed is approximately $24.3 million of deferred revenue.
[2] | Included in pro forma net income are estimated amortization charges relating to the allocated values of intangible assets for all periods reported above.

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