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Employee Stock Purchase Plan, Duration Of Offering Period

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Employee Stock Purchase Plan, Duration Of Purchase Period

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Employee Stock Purchase Plan, Percentage Of Market Value Price Of Common Stock

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Employee Stock Purchase Plan, Term of Extension

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Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Maximum Percentage Of Shares To Be Earned

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Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Change In Shares Earned

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Share-based Compensation Arrangement by Share-based Payment Award, Total Shareholder Return Performance, Lowest Percentage To Still Earn Awards

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of shares issued under share-based payment arrangement.

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Price of a single share of a number of saleable stocks of a company.

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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Narrative (Details) - USD ($)				1 Months Ended			12 Months Ended
	Sep. 18, 2006	Jan. 01, 2005	Dec. 31, 2004	Aug. 31, 2017	May 31, 2017	May 31, 2006	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2020	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018	Jan. 31, 2018	Oct. 31, 2017	Aug. 31, 2016	Jul. 31, 2015	Nov. 30, 2014	Aug. 31, 2014	Sep. 30, 2013	Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares released in the period (in shares)							203,000
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense							$ 118,900,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised							8,000,000.0	$ 10,100,000	$ 10,000,000.0
Unamortized stock-based compensation expense							$ 400,000
Weighted average period of recognition for unrecognized compensation expense							1 year 1 month 6 days
Risk-free interest rate							0.00%	0.00%
Stock Purchase Right
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense							$ 0
Risk-free interest rate							0.11%	1.79%	2.43%
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense							$ 24,400,000
Change in number of shares earned							2.00%
Maximum percentage of awards to be earned							200.00%
Vesting percentage							100.00%
Weighted average share price (in dollars per share)							$ 29.07
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility factors ranging							55.66%
Risk-free interest rate							0.15%
Minimum \| Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							1 year
Total shareholder return performance, lowest percentage to still earn awards							30.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility factors ranging							60.68%
Risk-free interest rate							0.18%
Maximum \| Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							3 years
2017 Repurchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount					$ 25,000,000.0
Stock repurchased during period (in shares)							0
Stock repurchase program, remaining authorized repurchase amount							$ 7,100,000
2006 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future issuance (in shares)						7,000,000.0
Vesting period							4 years
Expiration period							10 years
Number of shares available for future grant (in shares)							0
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future issuance (in shares)																					4,100,000
Expiration period							10 years
Number of shares available for future grant (in shares)							12,900,000
Number of additional shares reserved for future issuance (in shares)												12,000,000.0	16,300,000			4,500,000			6,800,000
2012 Plan \| Minimum \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							3 years
2012 Plan \| Maximum \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							4 years
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future issuance (in shares)																				1,000,000.0
Vesting period							4 years
Expiration period							10 years
Number of shares available for future grant (in shares)							0
Number of additional shares reserved for future issuance (in shares)																	1,200,000	1,200,000
2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for future issuance (in shares)															1,000,000.0
Vesting period							3 years
Expiration period							10 years
Number of shares available for future grant (in shares)							1,100,000
Number of additional shares reserved for future issuance (in shares)										1,400,000				1,500,000
Employee Stock Purchase Plan \| Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense							$ 2,500,000
Weighted average period of recognition for unrecognized compensation expense							4 months 24 days
Term of extension	10 years			10 years	10 years	10 years
Value of shares issued under employee stock purchase plan							$ 700,000	$ 600,000	$ 500,000
Percentage of market value price of common stock under Employee Stock Purchase Plan							85.00%
Duration of offering period		1 year	2 years
Duration of purchase period		6 months
Maximum contribution percentage amount of employee's base compensation							10.00%				20.00%