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Employee Benefit Plans (Tables) | 12 Months Ended
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Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Summary of share-based compensation expense and related tax benefit recognized | The following table summarizes share-based compensation expense and total income tax benefit recognized for fiscal years 2022, 2021 and 2020 (in thousands):
|  | Years Ended March 31,
|  | 2022 |  | 2021 |  | 2020
Cost of goods sold |  | $ | 6,695 |  |  | $ | 6,438 |  |  | $ | 4,852 |
Marketing and selling |  | 37,796 |  |  | 36,788 |  |  | 26,835 |
Research and development |  | 18,356 |  |  | 14,179 |  |  | 9,273 |
General and administrative |  | 30,632 |  |  | 28,614 |  |  | 13,910 |
Total share-based compensation expense |  | 93,479 |  |  | 86,019 |  |  | 54,870 |
Income tax benefit |  | (26,987) |  |  | (19,472) |  |  | (14,109) |
Total share-based compensation expense, net of income tax benefit |  | $ | 66,492 |  |  | $ | 66,547 |  |  | $ | 40,761 |
Summary of unamortized share-based compensation expense and the remaining months over which such expense is expected to be recognized | The following table summarizes total unamortized share-based compensation expense and the remaining period over which such expense is expected to be recognized, on a weighted-average basis by type of grant (in thousands, except number of months):
|  | March 31, 2022
|  | Unamortized Expense |  | Remaining Months
ESPP |  | $ | 2,341 |  |  | 4
Stock Options |  | 19,746 |  |  | 35
Time-based RSUs |  | 109,637 |  |  | 24
Market-based and performance-based RSUs |  | 36,669 |  |  | 21
Total unamortized share-based compensation expense |  | $ | 168,393 |  |  |
Schedule of assumptions applied for the fair value of market-based RSUs using the Monte-Carlo simulation method | The grant date fair value of the awards using the Black-Scholes-Merton option-pricing valuation model and Monte-Carlo simulation method is determined with the following assumptions and values:
|  | Stock Options |  | Employee Stock Purchase Plans
|  | Years Ended March 31, |  | Years Ended March 31,
|  | 2022 |  | 2021 |  | 2020 |  | 2022 |  | 2021 |  | 2020
Dividend yield |  | 1.18 | % |  | * |  | * |  | 1.03 | % |  | 1.04 | % |  | 1.74 | %
Risk-free interest rate |  | 1.99 | % |  | * |  | * |  | 0.27 | % |  | 0.10 | % |  | 1.81 | %
Expected volatility |  | 34 | % |  | * |  | * |  | 35 | % |  | 47 | % |  | 24 | %
Expected life (years) |  | 6.2 |  | * |  | * |  | 0.5 |  | 0.5 |  | 0.5
Weighted average grant date fair value per share |  | $ | 25.88 |  | * |  | * |  | $ | 23.55 |  | $ | 24.67 |  | $ | 9.35
* Not applicable as no stock options were granted for fiscal year 2021 and 2020.
RSUs with Market Conditions |  | Years Ended March 31,
|  | 2022 |  | 2021 |  | 2020
Dividend yield |  | 0.78 | % |  | 1.24 | % |  | 1.76 | %
Risk-free interest rate |  | 0.31 | % |  | 0.21 | % |  | 2.11 | %
Expected volatility |  | 37 | % |  | 31 | % |  | 30 | %
Expected life (years) |  | 3.0 |  | 3.0 |  | 3.0
Summary of stock option activity | A summary of the Company's stock option activities under all stock plans for fiscal years 2022, 2021 and 2020 is as follows:
|  | Number of Shares |  | Weighted-Average Exercise Price |  | Weighted-Average Remaining Contractual Term |  | Aggregate Intrinsic Value |  |  |  |
|  | (In thousands) |  |  |  | (Years) |  | (In thousands) |  |  |  |
Outstanding, March 31, 2019 |  | 2,607 |  |  |  |  |  |  |  |  |  |  |
Exercised |  | (573) |  |  |  |  |  |  | $ | 19,339 |  |  |  |  |
Canceled or expired |  | (65) |  |  |  |  |  |  |  |  |  |  |
Outstanding, March 31, 2020 |  | 1,969 |  |  |  |  |  |  |  |  |  |  |
Exercised |  | (1,347) |  |  |  |  |  |  | $ | 68,596 |  |  |  |  |
Outstanding, March 31, 2021 |  | 622 |  |  | $ | 34 |  |  | 7.1 |  | $ | 43,625 |  |  |  |  |
Granted |  | 842 |  |  | $ | 80 |  |  |  |  |  |  |  |  |
Exercised |  | (71) |  |  | $ | 39 |  |  |  |  | $ | 5,573 |  |  |  |  |
Outstanding, March 31, 2022 |  | 1,393 |  |  | $ | 62 |  |  | 8.3 |  | $ | 21,830 |  |  |  |  |
Vested and exercisable, March 31, 2022 |  | 551 |  |  | $ | 34 |  |  | 6.0 |  | $ | 22,006 |  |  |  |  |
Summary of time, market and performance-based RSU activity | A summary of the Company's time-based, market-based and performance-based RSU activities for fiscal years 2022, 2021 and 2020 is as follows:
|  | Number of Shares |  | Weighted-Average Grant Date Fair Value |  | Weighted-Average Remaining Vesting Period |  | Aggregate Fair Value |  |  |  |
|  | (In thousands) |  |  |  | (Years) |  | (In thousands) |  |  |  |
Outstanding, March 31, 2019 |  | 4,421 |  |  | $ | 29 |  |  |  |  |  |  |  |  |
Granted—time-based |  | 1,431 |  |  | $ | 38 |  |  |  |  |  |  |  |  |
Granted—market and performance-based |  | 365 |  |  | $ | 40 |  |  |  |  |  |  |  |  |
Vested |  | (1,705) |  |  |  |  |  |  | $ | 76,389 |  |  |  |  |
Canceled or expired |  | (561) |  |  |  |  |  |  |  |  |  |  |
Outstanding, March 31, 2020 |  | 3,951 |  |  | $ | 36 |  |  |  |  |  |  |  |  |
Granted—time-based |  | 1,046 |  |  | $ | 60 |  |  |  |  |  |  |  |  |
Granted—market and performance-based |  | 303 |  |  | $ | 67 |  |  |  |  |  |  |  |  |
Vested |  | (1,444) |  |  |  |  |  |  | $ | 168,816 |  |  |  |  |
Canceled or expired |  | (213) |  |  |  |  |  |  |  |  |  |  |
Outstanding, March 31, 2021 |  | 3,643 |  |  | $ | 45 |  |  |  |  |  |  |  |  |
Granted—time-based |  | 868 |  |  | $ | 103 |  |  |  |  |  |  |  |  |
Granted—market and performance-based |  | 203 |  |  | $ | 124 |  |  |  |  |  |  |  |  |
Vested |  | (1,463) |  |  | $ | 40 |  |  |  |  | $ | 133,977 |  |  |  |  |
Canceled or expired |  | (205) |  |  | $ | 62 |  |  |  |  |  |  |  |  |
Outstanding, March 31, 2022 |  | 3,046 |  |  | $ | 68 |  |  | 1.2 |  | $ | 233,797 |  |  |  |  |
Schedule of net periodic benefit costs | The net periodic benefit cost of the defined benefit pension plans and the non-retirement post-employment benefit obligations for fiscal years 2022, 2021 and 2020 was as follows (in thousands):
|  | Years Ended March 31,
|  | 2022 |  | 2021 |  | 2020
Service costs |  | $ | 14,693 |  |  | $ | 12,121 |  |  | $ | 11,008 |
Interest costs |  | 920 |  |  | 1,047 |  |  | 1,055 |
Expected return on plan assets |  | (2,930) |  |  | (2,535) |  |  | (2,616) |
Amortization: |  |  |  |  |  |
Net prior service credit recognized |  | (465) |  |  | (467) |  |  | (435) |
Net actuarial loss (gain) recognized |  | (2,158) |  |  | 2,144 |  |  | 1,386 |
Settlement |  | — |  |  | — |  |  | (97) |
Total net periodic benefit cost |  | $ | 10,060 |  |  | $ | 12,310 |  |  | $ | 10,301 |
Schedule of changes in projected benefit obligations | The changes in projected benefit obligations for fiscal years 2022 and 2021 were as follows (in thousands):
|  | Years Ended March 31,
|  | 2022 |  | 2021
Projected benefit obligations, beginning of the year |  | $ | 202,348 |  |  | $ | 160,914 |
Service costs |  | 14,693 |  |  | 12,121 |
Interest costs |  | 920 |  |  | 1,047 |
Plan participant contributions |  | 6,092 |  |  | 4,733 |
Actuarial (gains) losses |  | (31,198) |  |  | 15,762 |
Benefits paid |  | (3,904) |  |  | (3,947) |
Transfer of prior vested benefits |  | 14,963 |  |  | 7,556 |
Administrative expense paid |  | (130) |  |  | (130) |
Currency exchange rate changes and other |  | 3,767 |  |  | 4,292 |
Projected benefit obligations, end of the year |  | $ | 207,551 |  |  | $ | 202,348 |
Schedule of changes in the fair value of defined benefit pension plan assets | The following table presents the changes in the fair value of defined benefit pension plan assets for fiscal years 2022 and 2021 (in thousands):
|  | Years Ended March 31,
|  | 2022 |  | 2021
Fair value of plan assets, beginning of the year |  | $ | 128,061 |  |  | $ | 98,010 |
Actual return on plan assets |  | (2,156) |  |  | 11,706 |
Employer contributions |  | 10,877 |  |  | 8,064 |
Plan participant contributions |  | 6,092 |  |  | 4,733 |
Benefits paid |  | (3,904) |  |  | (3,947) |
Transfer of prior vested benefits |  | 14,963 |  |  | 7,556 |
Administrative expenses paid |  | (130) |  |  | (130) |
Currency exchange rate changes |  | 2,315 |  |  | 2,069 |
Fair value of plan assets, end of the year |  | $ | 156,118 |  |  | $ | 128,061 |
Schedule of fair value of the defined benefit pension plan assets by major categories and by levels within the fair value hierarchy | The following tables present the fair value of the defined benefit pension plan assets by major categories and by levels within the fair value hierarchy as of March 31, 2022 and 2021 (in thousands):
|  | March 31,
|  | 2022 |  | 2021
|  | Level 1 |  | Level 2 |  |  |  | Total |  | Level 1 |  | Level 2 |  |  |  | Total
Cash and cash equivalents |  | $ | 16,317 |  |  | $ | — |  |  |  |  | $ | 16,317 |  |  | $ | 21,715 |  |  | $ | — |  |  |  |  | $ | 21,715 |
Equity securities |  | 48,591 |  |  | — |  |  |  |  | 48,591 |  |  | 38,437 |  |  | — |  |  |  |  | 38,437 |
Debt securities |  | 38,513 |  |  | — |  |  |  |  | 38,513 |  |  | 31,034 |  |  | — |  |  |  |  | 31,034 |
Real estate funds |  | 25,146 |  |  | 13,077 |  |  |  |  | 38,223 |  |  | 20,802 |  |  | 8,341 |  |  |  |  | 29,143 |
Hedge funds |  | — |  |  | 8,076 |  |  |  |  | 8,076 |  |  | — |  |  | 2,730 |  |  |  |  | 2,730 |
Other |  | 6,034 |  |  | 364 |  |  |  |  | 6,398 |  |  | 4,704 |  |  | 298 |  |  |  |  | 5,002 |
Total fair value of plan assets |  | $ | 134,601 |  |  | $ | 21,517 |  |  |  |  | $ | 156,118 |  |  | $ | 116,692 |  |  | $ | 11,369 |  |  |  |  | $ | 128,061 |
Schedule of net funded status | The funded status of the plans was as follows (in thousands):
|  | Years Ended March 31,
|  | 2022 |  | 2021
Fair value of plan assets |  | $ | 156,118 |  |  | $ | 128,061 |
Less: projected benefit obligations |  | 207,551 |  |  | 202,348 |
Underfunded status |  | $ | (51,433) |  |  | $ | (74,287) |
Schedule of amounts recognized on the balance sheet for the plans | Amounts recognized on the balance sheet for the plans were as follows (in thousands):
|  | March 31,
|  | 2022 |  | 2021
Current liabilities |  | $ | 1,677 |  |  | $ | 2,738 |
Non-current liabilities |  | 49,756 |  |  | 71,549 |
Total liabilities |  | $ | 51,433 |  |  | $ | 74,287 |
Schedule of amounts recognized in accumulated other comprehensive loss | Amounts recognized in accumulated other comprehensive loss related to defined benefit pension plans were as follows (in thousands):
|  | March 31,
|  | 2022 |  | 2021 |  | 2020
Net prior service credits |  | $ | 2,883 |  |  | $ | 3,263 |  |  | $ | 3,647 |
Net actuarial loss |  | (4,304) |  |  | (27,553) |  |  | (22,722) |
Accumulated other comprehensive loss |  | (1,421) |  |  | (24,290) |  |  | (19,075) |
Deferred taxes |  | (2,074) |  |  | 1,090 |  |  | (941) |
Accumulated other comprehensive loss, net of tax |  | $ | (3,495) |  |  | $ | (23,200) |  |  | $ | (20,016) |
Schedule of actuarial assumptions for the pension plans | The actuarial assumptions for the defined benefit plans were as follows:
|  | Years Ended March 31,
|  | 2022 |  | 2021 |
Benefit Obligations: |  |  |  |  |
Discount rate |  | 1.00% - 6.75% |  | 0.25% - 6.00% |
Estimated rate of compensation increase |  | 2.00% - 10.00% |  | 2.00% - 10.00% |
Cash balance interest credit rate |  | 0.00% - 1.75% |  | 0.00% - 1.75% |
|  | Years Ended March 31,
|  | 2022 |  | 2021 |  | 2020
Periodic Costs: |  |  |  |  |  |
Discount rate |  | 0.25% - 6.00% |  | 0.50% - 6.75% |  | 0.55% - 7.25%
Estimated rate of compensation increase |  | 2.00% - 10.00% |  | 2.25% - 10.00% |  | 2.50% - 10.00%
Expected average rate of return on plan assets |  | 1.00% - 2.25% |  | 1.00% - 2.50% |  | 0.89% - 3.00%
Cash balance interest credit rate |  | 0.00% - 1.75% |  | 0.00% - 1.75% |  | 1.75% - 2.00%
Schedule of expected benefit payments | The following table reflects the benefit payments that the Company expects the plans to pay in the periods noted (in thousands):
Years Ending March 31, |  |
2023 |  | $ | 12,387 |
2024 |  | 12,700 |
2025 |  | 13,600 |
2026 |  | 12,546 |
2027 |  | 14,362 |
Thereafter |  | 67,605 |
Total expected benefit payments by the plan |  | $ | 133,200 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of share-based awards, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References No definition available. + Details
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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration