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Revenue from Contracts with Customers (Disaggregation of Revenue) (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 737,602 | $ 672,677 | $ 1,429,801 | $ 1,332,113
Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (44) | (21) | (84) | (45)
Kaplan International [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 188,580 | 184,303 | 374,336 | 367,885
Higher Education [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 76,288 | 85,981 | 159,068 | 185,811
Test Preparation [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 65,673 | 68,604 | 126,823 | 127,755
Professional (U.S.) [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 35,147 | 31,057 | 76,361 | 64,413
Kaplan Corporate and Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,369 | 442 | 4,671 | 727
Education Intersegment Eliminations [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (294) | (382) | (1,042) | (1,087)
Education [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 367,763 | 370,005 | 740,217 | 745,504
Television Broadcasting [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 116,628 | 114,086 | 224,851 | 222,888
Manufacturing [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 114,873 | 126,462 | 230,030 | 243,868
Healthcare [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 40,641 | 38,208 | 78,369 | 75,829
SocialCode [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 16,382 | 14,770 | 29,829 | 28,069
Other Businesses [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 81,359 | $ 9,167 | $ 126,589 | $ 16,000

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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