Percentage of earn out consideration payable in restricted shares.

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- Definition

Share based compensation arrangement by share based payment award award performance period.

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No definition available.

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- Definition

Share based compensation arrangement by share based payment award award vesting term.

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No definition available.

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Share based compensation arrangement by share based payment award number of grants issued upon reaching service milestones.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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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

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

The policy, if any, for issuing shares (or other type of equity) upon exercise or conversion of equity-based awards into shares of stock or units, including the source of those shares or units (that is, new share, new unit, treasury shares or treasury units).

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- Definition

Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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- Definition

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.

+ References

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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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Stock Award Plans and Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended						12 Months Ended
	Nov. 30, 2016	May 31, 2016	Jun. 30, 2015	May 31, 2015	May 31, 2014	Jun. 30, 2011	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised in period							$ 74,800	$ 58,600	$ 20,000
Proceeds from the exercise of stock options							10,660	9,771	10,927
Fair value of options vested in period							$ 4,000	2,600	2,600
Expected dividend yield							0.00%
Stock-based compensation							$ 32,866	29,053	16,520
Two Thousand Fifteen Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option conversion description							Each share of stock issued pursuant to a stock option or stock appreciation right counts as one share against the maximum number of shares issuable under the 2015 Plan, while each share of stock issued pursuant to any other type of award counts as 1.8 shares against the maximum number of shares issuable under the 2015 Plan.
Shares available for future issuance under the Plan							3,118,000
Two Thousand Eight Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance under the Plan							159,000
Description of share counts for awards other than 2008 Stock Incentive Plan							Each share of stock currently issued pursuant to any other type of award counts as 1.58 shares against the maximum number of shares issuable under the 2008 Plan
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock award plans, outstanding stock options expiration period							10 years
Unrecognized stock-based compensation expense							$ 7,700
Unrecognized stock-based compensation expense, weighted-average recognition period							2 years 6 months
Expected dividend yield							0.00%
Stock-based compensation							$ 5,829	$ 4,866	$ 2,708
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense							$ 27,400
Unrecognized stock-based compensation expense, weighted-average recognition period							2 years
Weighted average grant-date fair value for restricted stock and restricted stock units granted							$ 97.43	$ 87.45	$ 22.07
Fair value of restricted stock and restricted stock units vested in period							$ 51,300	$ 39,600	$ 11,200
Performance and Market-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense							$ 15,500
Unrecognized stock-based compensation expense, weighted-average recognition period							2 years 1 month 6 days
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share unit issued				183,940	379,752	100,000
Non-vested shares, outstanding							74,000
Shares of award granted, upon achievement of service milestone							100,000
Performance Based Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share unit issued		190,890
Performance Based Restricted Stock Units Issued in May 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested shares, outstanding							132,000
Performance Based Restricted Stock Units Issued in May 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested shares, outstanding							120,000
Market Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award vesting term							2018-06
Share based compensation arrangement performance period							3 years
Equity award, vesting options							One-half of the market-based restricted stock units earned will vest in June 2018 and the remaining restricted stock units will vest one year thereafter provided the executive officers are still employed with the Company.
Market Based Restricted Stock Units \| Chief Financial Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share unit issued			322,980
Non-vested shares, outstanding			281,530
Market Based Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Share earning							300.00%
Market Based Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Share earning							0.00%
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	0.00%		0.00%
Weighted average grant-date fair value for restricted stock and restricted stock units granted							$ 97.43
Restricted share unit issued							366,000
Non-vested shares, outstanding							1,056,000	1,263,000
Share based payment award vesting term							2018-06
Share based compensation arrangement performance period							3 years
Equity award, vesting options							One-half of the restricted stock units will potentially vest in June 2018 based on performance criteria described above and the remaining half of the restricted stock units will vest one year thereafter.
Stock-based compensation							$ 26,570	$ 23,708	13,539
Restricted Stock Units \| Executive Office
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share unit issued	41,526
Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Share earning							100.00%
Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Share earning							0.00%
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP, exercise price as a percentage of its market price							85.00%
Stock-based compensation							$ 500	$ 500	$ 300