Stock-Based Compensation - Additional Information (Detail) $ in Millions	1 Months Ended					3 Months Ended
	Jun. 30, 2023 shares	Jun. 30, 2022 shares	Jun. 30, 2021 shares	Jun. 30, 2020 shares	Jun. 30, 2019 shares	Mar. 31, 2024 USD ($) Period shares	Dec. 31, 2023 shares
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, option to be granted at percentage of fair value of common stock						85.00%
Employee Stock Purchase Plan, offering period						12 months
Number of purchase periods within each offering period | Period						2
Increase in shares of common stock authorized for issuance				1,500,000
Aggregate number of shares of common stock reserved for future issuance						600,000
2008 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, option to be granted at percentage of fair value of common stock						100.00%
Increase in shares of common stock authorized for issuance	7,000,000	12,000,000	7,600,000	5,000,000	11,800,000
Aggregate number of shares of common stock reserved for future issuance						34,200,000
Stock-based compensation, award term						10 years
Performance-based stock options, outstanding						2,700,000
Outstanding options and other stock based awards						13,015,000	14,515,000
Number of shares available for future issuance						7,300,000
2008 Equity Incentive Plan | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, vesting period						4 years
2008 Equity Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of unvested Restricted Stock Units						13,933,000	10,686,000
2008 Equity Incentive Plan | Performance-based Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Stock Purchase Plan, authorized shares for issuance						500,000
2008 Equity Incentive Plan | Performance-based Cash Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option plan granted on cash award | $						$ 1.0
2008 Equity Incentive Plan | Minimum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, vesting period						3 years
2008 Equity Incentive Plan | Maximum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, vesting period						4 years