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Acquisitions - Additional Information (Detail) (USD $) | 3 Months Ended |  | 12 Months Ended | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011 | Dec. 31, 2011 New Senior Secured Credit Facilities | Feb. 13, 2012 S1 Corporation | Mar. 31, 2012 S1 Corporation | Mar. 31, 2012 Business Acquisition Pro Forma Information | Mar. 31, 2012 Available-for-sale Securities
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Acquisition cash paid |  |  |  |  | $ 368,700,000 |  |  |
Acquisition transaction paid in shares |  |  |  |  | 5,900,000 |  |  |
Issuance of shares from treasury stock for acquisition of S1 Corporation | 95,500 |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  | 587,284,000 |  |  |
Acquisition transaction, cash exchanged per S1 share |  |  |  |  | $ 10.00 |  |  |
Acquisition transaction, Company's stock exchanged per S1 share |  |  |  |  | 0.3148 |  |  |
Proration of exchange percentage, S1 share for the Company's shares |  |  |  |  | 33.80% |  |  |
Proration of exchange percentage, S1 share for cash |  |  |  |  | 66.20% |  |  |
Share price used to calculate cash payment for fractional shares |  |  |  |  | $ 34.14 |  |  |
Issuance of shares for acquisition of S1 Corporation |  |  |  |  |  |  |  | 1,107,000
Reclassification of unrealized gain to a realized gain on available-for-sale securities | 1,557,000 |  |  |  |  |  |  |
Acquisition transaction paid in cash |  |  | 73,700,000 |  |  |  |  |
Proceeds from senior bank financing arranged for business acquisition |  |  |  | 295,000,000 |  |  |  |
Acquisition related transaction expenses |  |  |  |  |  | 5,200,000 |  |
Revenue |  |  |  |  |  | 22,500,000 |  |
Net operating losses | (1,613,000) | 7,498,000 |  |  |  | 8,800,000 |  |
Additional revenue |  |  |  |  |  |  | 4,300,000 |
Employee related action including share based compensation on Vested transaction RSA |  |  |  |  |  |  | 9,600,000 |
Investment bank fees |  |  |  |  |  |  | 7,800,000 |
Professional fees |  |  |  |  |  |  | $ 1,200,000 |

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- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 59 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=6909708&loc=d3e1043-128460 + Details
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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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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