Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill by Reportable Segment (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Goodwill [Roll Forward]
Beginning balance			$ 26,563,000
Goodwill acquired			217,203,000
Impairment			0
Ending balance	$ 243,766,000		243,766,000
APUS Segment
Goodwill [Roll Forward]
Beginning balance			0
Goodwill acquired			0
Impairment			0
Ending balance	0		0
RU Segment
Goodwill [Roll Forward]
Beginning balance			0
Goodwill acquired			217,203,000
Impairment			0
Ending balance	217,203,000		217,203,000
HCN Segment
Goodwill [Roll Forward]
Beginning balance			26,563,000
Goodwill acquired			0
Impairment	0	$ 0	0	$ 0
Ending balance	$ 26,563,000		$ 26,563,000