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Disaggregated Revenue and Deferred Revenue - Schedule of Changes in Liabilities from Contract with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Contract With Customer Liability [Heading Roll Forward] |  |  |  |
Balance, beginning of period | $ 29,495 | $ 25,660 | $ 39,122 | $ 32,276
Deferral of revenue | 53,888 | 45,174 | 113,141 | 91,280
Recognition of revenue | (32,977) | (28,003) | (101,857) | (80,725)
Balance, end of period | 50,406 | 42,831 | 50,406 | 42,831
Loan Servicing and Systems |  |  |  |
Contract With Customer Liability [Heading Roll Forward] |  |  |  |
Balance, beginning of period | 3,315 | 3,771 | 4,413 | 4,968
Deferral of revenue | 881 | 1,591 | 2,761 | 2,555
Recognition of revenue | (1,149) | (1,754) | (4,127) | (3,915)
Balance, end of period | 3,047 | 3,608 | 3,047 | 3,608
Education Technology, Services, and Payment Processing |  |  |  |
Contract With Customer Liability [Heading Roll Forward] |  |  |  |
Balance, beginning of period | 21,489 | 17,989 | 30,556 | 24,164
Deferral of revenue | 42,752 | 34,252 | 81,484 | 65,940
Recognition of revenue | (21,820) | (17,049) | (69,619) | (54,912)
Balance, end of period | 42,421 | 35,192 | 42,421 | 35,192
Communications |  |  |  |
Contract With Customer Liability [Heading Roll Forward] |  |  |  |
Balance, beginning of period | 3,080 | 2,149 | 2,551 | 1,665
Deferral of revenue | 9,302 | 6,567 | 26,366 | 17,916
Recognition of revenue | (9,158) | (6,342) | (25,693) | (17,207)
Balance, end of period | 3,224 | 2,374 | 3,224 | 2,374
Corporate and Other Activities |  |  |  |
Contract With Customer Liability [Heading Roll Forward] |  |  |  |
Balance, beginning of period | 1,611 | 1,751 | 1,602 | 1,479
Deferral of revenue | 953 | 2,764 | 2,530 | 4,869
Recognition of revenue | (850) | (2,858) | (2,418) | (4,691)
Balance, end of period | $ 1,714 | $ 1,657 | $ 1,714 | $ 1,657

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044 + Details
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 + Details
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