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Revenues (Tables) | 6 Months Ended
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Jun. 30, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table disaggregates our revenues by the timing in which the revenue is recognized:
| Three Months Ended June 30, 2018 |  | Six Months Ended June 30, 2018
| Account Services |  | Processing and Settlement Services |  | Account Services |  | Processing and Settlement Services
Timing of revenue recognition | (In thousands)
Transferred at a point in time | $ | 124,785 |  |  | $ | 60,613 |  |  | $ | 261,311 |  |  | $ | 160,848 |
Transferred over time | 72,070 |  |  | 881 |  |  | 149,416 |  |  | 1,772 |
Operating revenues | $ | 196,855 |  |  | $ | 61,494 |  |  | $ | 410,727 |  |  | $ | 162,620 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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