Commitments and Contingencies (Detail)	Mar. 12, 2021 USD ($)	Jan. 19, 2021 USD ($) plaintiff	Jul. 16, 2019 individual	Apr. 04, 2019 individual	Jan. 02, 2019 individual item	Jun. 27, 2018 individual	Apr. 13, 2018 class	Jan. 25, 2018 individual	Mar. 31, 2021 USD ($) plaintiff	Jan. 31, 2021 plaintiff	Jan. 04, 2021 plaintiff	Dec. 31, 2020 plaintiff	Dec. 09, 2020 plaintiff	Oct. 14, 2020 plaintiff	Jun. 30, 2020 USD ($)	Feb. 07, 2020 lawsuit	Jun. 07, 2019 plaintiff	Dec. 10, 2018 lawsuit	May 08, 2018 plaintiff
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit																		2
Nicole Versetto [Member]
Loss Contingencies [Line Items]
Number of other individuals filed lawsuit | class							3
Loss contingency accrual | $															$ 44,950,000
Nicole Versetto [Member] | Prepaid Expenses and Other Current Assets
Loss Contingencies [Line Items]
Settlement fund | $									$ 44,950,000						$ 44,950,000
Carlson Case [Member]
Loss Contingencies [Line Items]
Number of other individuals filed lawsuit | individual					13	32		71
Number of groups plaintiffs motions to dismiss | item					3
Number of plaintiffs dismissed										2							3		6
Number of plaintiffs, added										12									2
Number of Plaintiffs																	109
Lawsuit In United States District Court for the Western District of Texas
Loss Contingencies [Line Items]
Number of plaintiffs dismissed												107
Number of plaintiffs, unsettled											2			1
Number of Plaintiffs												109
Number of plaintiffs, council moved to withdraw											1
Lawsuit In United States District Court for the Northern District of California
Loss Contingencies [Line Items]
Number of plaintiffs dismissed												108
Number of plaintiffs, unsettled		4												3
Number of Plaintiffs									3			112
Number Of Plaintiffs, Agreed To Settle		1
Number of plaintiffs, council moved to withdraw													3
Alvarez Case [Member]
Loss Contingencies [Line Items]
Number of other individuals filed lawsuit | individual			102
Number of other individuals to whom notice has been sent | individual				105
Percentage of graduates obtained job in field of study				90.00%
Complaint 2017 And 2018 Case [Member]
Loss Contingencies [Line Items]
Qui Tam False Claims Act Actions Filed | lawsuit																2
Lawsuit in United States District Court for Northern District of Ohio
Loss Contingencies [Line Items]
Loss contingency sought value | $		$ 5,000,000
John Doe Plaintiff Case
Loss Contingencies [Line Items]
Loss contingency sought value | $	$ 50,000