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Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Summary Of Significant Accounting Policies [Line Items] |  |
Amount of settlement funds | $ 284.0 |
Goodwill measurement period | 1 year |
Customer Concentration Risk |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Percentage of receivables | No customer accounted for more than 10% of the Company's consolidated receivables balance as of December 31, 2013 or 2012. | No customer accounted for more than 10% of the Company's consolidated receivables balance as of December 31, 2013 or 2012.
Minimum |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful life | 3 years |
Minimum | Software Acquired or Developed for Internal Use |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful life | 3 years |
Maximum |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful life | 20 years |
Maximum | Software Acquired or Developed for Internal Use |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful life | 10 years |

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- Definition Goodwill Impairment Test Period + References No definition available. + Details
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Data Type: | xbrli:durationItemType
Balance Type: | na
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- Definition Percentage Of Accounts Receivable Attributable To Major Customer + References No definition available. + Details
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- Definition The balance of the settlement accounts at period end. Settlement accounts are trust accounts maintained for the benefit of the Company's clients. They are not included in the Company's balance sheet. + References No definition available. + Details
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- Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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