Share-based Compensation Arrangement By Share-based Payment Award, Purchase Period

No definition available.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

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

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- Definition

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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- Definition

The amount of plan compensation cost recognized during the period.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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- Definition

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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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

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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No definition available.

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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

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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- Definition

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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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

Number of shares issued under share-based payment arrangement.

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- Definition

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

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- Definition

Amount of cost expensed and capitalized for award under share-based payment arrangement.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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No definition available.

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Share-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands					3 Months Ended
	May 18, 2021	Oct. 01, 2020	Dec. 21, 2018	Oct. 01, 2018	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)					2
Intrinsic value, exercises in period					$ 1,949
Fair value of options vested					4
Share-based Compensation expense					5,334	$ 3,076
Non-cash share-based compensation					5,203	3,019
Compensation cost not yet recognized, period for recognition					28,941
Proceeds from issuance of common stock					$ 2,085	6,617
Employee Stock Ownership Plan (ESOP), Shares in ESOP			11,297
Common stock, par value (in dollars per share)					$ 0.01		$ 0.01
Evoqua Water Technologies Corp. Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting percentage					25.00%
Contractual term of options					10 years
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity incentive plan, number of shares authorized (shares)					11,083
Number of shares available for grant (in shares)					2,177
Compensation cost not yet recognized, period for recognition					$ 7,501
Period for recognition for unrecognized compensation expense					1 year 9 months 18 days
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)					4,016
Purchase price of stock, percentage				85.00%
Purchase period				6 months
Employee Stock Ownership Plan (ESOP), Shares in ESOP			5,000
Employee Stock Ownership Plan (ESOP), Compensation Expense					$ 221	$ 216
Shares issued under ESPP		60
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period for recognition for unrecognized compensation expense					2 years 2 months 12 days
Vested in period (shares)					115
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, par value (in dollars per share)			$ 0.01
Special RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	219
Compensation cost not yet recognized, period for recognition					$ 11,444
Period for recognition for unrecognized compensation expense					2 years 6 months
Special PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	98