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Revenue (Disaggregate revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 348,327	$ 268,241
Higher Education [Member]
Disaggregation of Revenue [Line Items]
Revenue	286,731	218,289
Test Preparation/Certifications [Member]
Disaggregation of Revenue [Line Items]
Revenue	37,821	36,574
Conferences/Seminars [Member]
Disaggregation of Revenue [Line Items]
Revenue	8,951	2,081
Memberships/Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	12,485	10,760
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,339	537
Financial Service [Member]
Disaggregation of Revenue [Line Items]
Revenue	59,257	49,415
Financial Service [Member] | Higher Education [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Financial Service [Member] | Test Preparation/Certifications [Member]
Disaggregation of Revenue [Line Items]
Revenue	37,821	36,574
Financial Service [Member] | Conferences/Seminars [Member]
Disaggregation of Revenue [Line Items]
Revenue	8,951	2,081
Financial Service [Member] | Memberships/Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	12,485	10,760
Financial Service [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Chamberlain University Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	135,639	133,764
Chamberlain University Segment [Member] | Higher Education [Member]
Disaggregation of Revenue [Line Items]
Revenue	135,639	133,764
Chamberlain University Segment [Member] | Test Preparation/Certifications [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Chamberlain University Segment [Member] | Conferences/Seminars [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Chamberlain University Segment [Member] | Memberships/Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Chamberlain University Segment [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden University
Disaggregation of Revenue [Line Items]
Revenue	68,617	0
Walden University | Higher Education [Member]
Disaggregation of Revenue [Line Items]
Revenue	68,617	0
Walden University | Test Preparation/Certifications [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden University | Conferences/Seminars [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden University | Memberships/Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Walden University | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary [Member]
Disaggregation of Revenue [Line Items]
Revenue	84,814	85,062
Medical and Veterinary [Member] | Higher Education [Member]
Disaggregation of Revenue [Line Items]
Revenue	82,475	84,525
Medical and Veterinary [Member] | Test Preparation/Certifications [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary [Member] | Conferences/Seminars [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary [Member] | Memberships/Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0
Medical and Veterinary [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 2,339	$ 537

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