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Stockholders' Equity - Restricted Stock Awards, Restricted Stock Units and Performance-Based Restricted Stock Units - Additional Information (Detail)			12 Months Ended
	Jul. 02, 2019 shares	Aug. 23, 2017 USD ($) Tranche shares	Mar. 31, 2020 Tranche shares	Apr. 24, 2017 shares
Inducement Award Performance-Based Restricted Stock Units [Member]
Class Of Stock [Line Items]
Number of tranches \| Tranche		5
Award vesting percentage			100.00%
Number of tranches vested \| Tranche			0
Grant date fair values of tranches \| $		$ 165,000
Inducement Award Performance-Based Restricted Stock Units [Member] \| Maximum [Member]
Class Of Stock [Line Items]
Number of shares allocated		208,822
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche One [Member]
Class Of Stock [Line Items]
Award vesting percentage		20.00%
Stock units vesting year		2018
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche One [Member] \| Minimum [Member]
Class Of Stock [Line Items]
Award vesting percentage		0.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche One [Member] \| Maximum [Member]
Class Of Stock [Line Items]
Award vesting percentage		120.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche Two [Member]
Class Of Stock [Line Items]
Award vesting percentage		20.00%
Stock units vesting year		2019
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche Two [Member] \| Minimum [Member]
Class Of Stock [Line Items]
Award vesting percentage		0.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche Two [Member] \| Maximum [Member]
Class Of Stock [Line Items]
Award vesting percentage		120.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche Three [Member]
Class Of Stock [Line Items]
Award vesting percentage		20.00%
Stock units vesting year		2020
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche Three [Member] \| Minimum [Member]
Class Of Stock [Line Items]
Award vesting percentage		0.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share-based Compensation Award, Tranche Three [Member] \| Maximum [Member]
Class Of Stock [Line Items]
Award vesting percentage		120.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share Based Compensation Award Tranche Four [Member]
Class Of Stock [Line Items]
Award vesting percentage		20.00%
Stock units vesting year		2021
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share Based Compensation Award Tranche Four [Member] \| Minimum [Member]
Class Of Stock [Line Items]
Award vesting percentage		0.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share Based Compensation Award Tranche Four [Member] \| Maximum [Member]
Class Of Stock [Line Items]
Award vesting percentage		120.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share Based Compensation Award Tranche Five [Member]
Class Of Stock [Line Items]
Award vesting percentage		20.00%
Stock units vesting year		2020
Share based compensation arrangement, number of shares vested			41,764
Share based compensation arrangement, number of shares forfeited			8,352
Share based compensation arrangement, number of shares eligible to vest upon future performance			158,706
Share based compensation arrangement amendment description and terms			Based on the amendment to the vesting criteria, the remaining 158,706 units eligible to vest upon future performance were divided into three separate but equal tranches with independent vesting criteria based on the achievement of certain regulatory milestones.
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share Based Compensation Award Tranche Five [Member] \| Minimum [Member]
Class Of Stock [Line Items]
Award vesting percentage		0.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| Share Based Compensation Award Tranche Five [Member] \| Maximum [Member]
Class Of Stock [Line Items]
Award vesting percentage		120.00%
Inducement Award Performance-Based Restricted Stock Units [Member] \| CEO [Member]
Class Of Stock [Line Items]
Number of shares allocated				208,822
PBRSU Retention Awards [Member] \| Management Team [Member]
Class Of Stock [Line Items]
Number of shares allocated	6,027,899
Vesting period	24 months