Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Revenue Recognition [Line Items]
Length of academic year	210 days
Term of non degree professional development and continuing education offerings through subscription based access	364 days
Revenue recognized estimated reserve based on historical evidence	$ 2.4	$ 2.5
Minimum [Member]
Revenue Recognition [Line Items]
Length of academic terms	56 days
Term of non degree professional development and continuing education offerings through online courses	84 days
Maximum [Member]
Revenue Recognition [Line Items]
Length of academic terms	84 days
Term of non degree professional development and continuing education offerings through online courses	126 days