| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | Period [Axis] |
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2015-04-01 - 2016-03-31 |
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Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |
Summary of share-based compensation expense and related tax benefit recognized | The following table summarizes share-based compensation expense and related tax benefit recognized for fiscal years 2016, 2015 and 2014 (in thousands): | | | | | | | | | | | | | | | | Years Ended March 31, | | | 2016 | | 2015 | | 2014 | Cost of goods sold | | $ | 2,340 |
| | $ | 2,474 |
| | $ | 2,518 |
| Marketing and selling | | 9,273 |
| | 8,570 |
| | 7,848 |
| Research and development | | 3,046 |
| | 2,381 |
| | 2,811 |
| General and administrative | | 12,353 |
| | 10,766 |
| | 10,051 |
| Restructuring | | 7 |
| | — |
| | — |
| Total share-based compensation expense | | 27,019 |
| | 24,191 |
| | 23,228 |
| Income tax benefit | | (6,297 | ) | | (4,814 | ) | | (4,447 | ) | Total share-based compensation expense, net of income tax | | $ | 20,722 |
| | $ | 19,377 |
| | $ | 18,781 |
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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 months 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, 2016 | | | Unamortized Expense | | Remaining Months | Stock options and ESPP | | $ | 964 |
| | 4 | Time-based RSUs | | 25,734 |
| | 22 | Market-based and performance-based RSUs | | 9,529 |
| | 18 | | | $ | 36,227 |
| | |
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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 are determined applying the following assumptions and values: | | | | | | | | | | | | | | Employee Stock Purchase Plans | | Years Ended March 31, | | | 2016 | | 2015 | | 2014 | Dividend yield | | 3.47 | % | | 1.97 | % | | 0.43 | % | Risk-free interest rate | | 0.29 | % | | 0.14 | % | | 0.07 | % | Expected volatility | | 26 | % | | 30 | % | | 36 | % | Expected life (years) | | 0.5 |
| | 0.6 |
| | 0.5 |
| Weighted average fair value | | $ | 3.29 |
| | $ | 3.18 |
| | $ | 2.46 |
|
| | | | | | | | | | | Market-based RSUs | | Years Ended March 31, | | | 2016 | | 2015 | | 2014 | Dividend yield | | 3.78 | % | | 1.86 | % | | 0.75 | % | Risk-free interest rate | | 0.84 | % | | 0.83 | % | | 1.09 | % | Expected volatility | | 38 | % | | 46 | % | | 46 | % | Expected life (years) | | 3.0 |
| | 3.0 |
| | 2.9 |
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Summary of stock option activity | A summary of the Company's stock option activities under all stock plans for fiscal years 2016, 2015 and 2014 is as follows (including discontinued operations for all the periods presented): | | | | | | | | | | | | | | | | | Number of Shares | | Weighted-Average Exercise Price | | Weighted-Average Remaining Contractual Term
| | Aggregate Intrinsic Value | | | (In thousands) | | | | (Years) | | (In thousands) | Outstanding, March 31, 2013 | | 13,684 |
| |
|
| | | | | Granted | | — |
| |
|
| | | | | Exercised | | (551 | ) | |
|
| | | | $ | 2,045 |
| Cancelled or expired | | (3,317 | ) | |
|
| | | | | Outstanding, March 31, 2014 | | 9,816 |
| |
|
| | | | | Granted | | — |
| |
|
| | | | | Exercised | | (390 | ) | |
|
| | | | $ | 1,505 |
| Cancelled or expired | | (1,550 | ) | |
|
| | | | | Outstanding, March 31, 2015 | | 7,876 |
| | $ | 18 |
| |
| |
|
| Granted | | — |
| | $ | — |
| |
| |
|
| Exercised | | (746 | ) | | $ | 10 |
| |
| | $ | 4,026 |
| Cancelled or expired | | (1,796 | ) | | $ | 20 |
| |
| |
|
| Outstanding, March 31, 2016 | | 5,334 |
| | $ | 18 |
| | 4.0 | | $ | 12,436 |
| Vested and expected to vest, March 31, 2016 | | 4,004 |
| | $ | 19 |
| | 3.2 | | $ | 8,119 |
| Vested and exercisable, March 31, 2016 | | 3,879 |
| | $ | 20 |
| | 3.1 | | $ | 7,134 |
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Summary of time- and performance-based RSU activity | A summary of the Company's time-based, market-based, and performance-based RSU activities for fiscal years 2016, 2015 and 2014 is as follows (including discontinued operations for all the periods presented): | | | | | | | | | | | | | | | | | 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, 2013 | | 4,642 |
| | $ | 10 |
| | | | | Granted—time-based | | 3,104 |
| | $ | 11 |
| | | | | Granted—market-based | | 1,060 |
| | $ | 8 |
| | | | | Vested | | (1,560 | ) | | $ | 9 |
| | | | $ | 17,810 |
| Cancelled or expired | | (1,158 | ) | | $ | 15 |
| | | | | Outstanding, March 31, 2014 | | 6,088 |
| | $ | 10 |
| | | | | Granted—time-based | | 1,332 |
| | $ | 13 |
| | | | | Granted—market-based | | 523 |
| | $ | 13 |
| | | | | Granted - performance-based | | 55 |
| | $ | 12 |
| | | | | Vested | | (1,949 | ) | | $ | 10 |
| | | | $ | 27,844 |
| Cancelled or expired | | (1,110 | ) | | $ | 11 |
| | | | | Outstanding, March 31, 2015 | | 4,939 |
| | $ | 11 |
| | | | | Granted—time-based | | 2,247 |
| | $ | 13 |
| | | | | Granted—market-based | | 356 |
| | $ | 14 |
| | | | | Granted - performance-based | | 356 |
| | $ | 13 |
| | | | | Vested | | (1,557 | ) | | $ | 10 |
| | | | $ | 22,823 |
| Cancelled or expired | | (820 | ) | | $ | 12 |
| | | | | Outstanding, March 31, 2016 | | 5,521 |
| | $ | 12 |
| | 1.5 | | $ | 87,837 |
| Expected to vest, March 31, 2016 | | 4,687 |
| | $ | 12 |
| | 1.2 | | $ | 74,352 |
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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 2016, 2015 and 2014 was as follows (in thousands): | | | | | | | | | | | | | | | | Years Ended March 31, | | | 2016 | | 2015 | | 2014 | Service costs | | $ | 10,117 |
| | $ | 7,646 |
| | $ | 8,591 |
| Interest costs | | 1,147 |
| | 1,970 |
| | 1,794 |
| Expected return on plan assets | | (1,657 | ) | | (2,084 | ) | | (1,727 | ) | Amortization: | | | | | | | Net transition obligation | | 4 |
| | 4 |
| | 4 |
| Net prior service costs (credit) recognized | | (124 | ) | | (45 | ) | | 210 |
| Net actuarial loss recognized | | 1,854 |
| | 301 |
| | 592 |
| Settlement and curtailment | | — |
| | (13 | ) | | 769 |
| | | $ | 11,341 |
| | $ | 7,779 |
| | $ | 10,233 |
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Schedule of changes in projected benefit obligations | The changes in projected benefit obligations for fiscal years 2016 and 2015 were as follows (in thousands): | | | | | | | | | | | | Years Ended March 31, | | | 2016 | | 2015 | Projected benefit obligations, beginning of the year | | $ | 113,323 |
| | $ | 102,383 |
| Service costs | | 10,117 |
| | 7,646 |
| Interest costs | | 1,147 |
| | 1,970 |
| Plan participant contributions | | 2,990 |
| | 2,914 |
| Actuarial (gains) losses | | (2,496 | ) | | 16,768 |
| Benefits paid | | (5,277 | ) | | (5,307 | ) | Plan amendment related to statutory change | | — |
| | (3,936 | ) | Settlement and curtailment | | — |
| | (157 | ) | Administrative expense paid | | — |
| | (160 | ) | Currency exchange rate changes | | 669 |
| | (8,798 | ) | Projected benefit obligations, end of the year | | $ | 120,473 |
| | $ | 113,323 |
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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 2016 and 2015 (in thousands): | | | | | | | | | | | | Years Ended March 31, | | | 2016 | | 2015 | Fair value of plan assets, beginning of the year | | $ | 60,910 |
| | $ | 63,384 |
| Actual return on plan assets | | (1,160 | ) | | 136 |
| Employer contributions | | 7,171 |
| | 5,731 |
| Plan participant contributions | | 2,990 |
| | 2,914 |
| Benefits paid | | (5,277 | ) | | (5,307 | ) | Settlement and curtailment | | — |
| | (157 | ) | Administrative expenses paid | | — |
| | (160 | ) | Currency exchange rate changes | | 645 |
| | (5,631 | ) | Fair value of plan assets, end of the year | | $ | 65,279 |
| | $ | 60,910 |
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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, 2016 and 2015 (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, | | | 2016 | | 2015 | | | Level 1 | | Level 2 | | Level 3 | | Total | | Level 1 | | Level 2 | | Level 3 | | Total | Cash | | $ | 9,268 |
| | $ | 47 |
| | $ | — |
| | $ | 9,315 |
| | $ | 7,958 |
| | $ | 46 |
| | $ | — |
| | $ | 8,004 |
| Equity securities | | 18,640 |
| | — |
| | — |
| | 18,640 |
| | 20,476 |
| | — |
| | — |
| | 20,476 |
| Debt securities | | 21,781 |
| | — |
| | — |
| | 21,781 |
| | 20,357 |
| | — |
| | — |
| | 20,357 |
| Swiss real estate funds | | 9,622 |
| | — |
| | — |
| | 9,622 |
| | 8,586 |
| | — |
| | — |
| | 8,586 |
| Hedge funds | | — |
| | 3,492 |
| | — |
| | 3,492 |
| | — |
| | 3,251 |
| | — |
| | 3,251 |
| Insurance contracts | | — |
| | 94 |
| | — |
| | 94 |
| | — |
| | 114 |
| | — |
| | 114 |
| Other | | 2,195 |
| | 140 |
| | — |
| | 2,335 |
| | 28 |
| | 94 |
| | — |
| | 122 |
| | | $ | 61,506 |
| | $ | 3,773 |
| | $ | — |
| | $ | 65,279 |
| | $ | 57,405 |
| | $ | 3,505 |
| | $ | — |
| | $ | 60,910 |
|
|
Schedule of net funded status | The funded status of the plans was as follows (in thousands): | | | | | | | | | | | | Years Ended March 31, | | | 2016 | | 2015 | Fair value of plan assets | | $ | 65,279 |
| | $ | 60,910 |
| Less: Projected benefit obligations | | 120,473 |
| | 113,323 |
| Under funded status | | $ | (55,194 | ) | | $ | (52,413 | ) |
|
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, | | | 2016 | | 2015 | Current liabilities | | $ | (1,285 | ) | | $ | (1,232 | ) | Non-current liabilities | | (53,909 | ) | | (51,181 | ) | Net liabilities | | $ | (55,194 | ) | | $ | (52,413 | ) |
Amounts recognized in accumulated other comprehensive loss related to defined benefit pension plans were as follows (in thousands): | | | | | | | | | | | | | | | | March 31, | | | 2016 | | 2015 | | 2014 | Net prior service costs (credits) | | $ | 1,613 |
| | $ | 1,672 |
| | $ | (2,149 | ) | Net actuarial loss | | (27,612 | ) | | (28,751 | ) | | (12,319 | ) | Net transition obligation | | (4 | ) | | (8 | ) | | (12 | ) | Accumulated other comprehensive loss | | (26,003 | ) | | (27,087 | ) | | (14,480 | ) | Deferred tax benefit | | (168 | ) | | 123 |
| | 192 |
| Accumulated other comprehensive loss, net of tax | | $ | (26,171 | ) | | $ | (26,964 | ) | | $ | (14,288 | ) |
The following table presents the amounts included in accumulated other comprehensive loss as of March 31, 2016, which are expected to be recognized as a component of net periodic benefit cost in fiscal year 2017 (in thousands): | | | | | | | | Year Ending March 31, 2017 | Amortization of net transition obligation | | $ | 4 |
| Amortization of net prior service credits | | (128 | ) | Amortization of net actuarial loss | | 1,650 |
| | | $ | 1,526 |
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Schedule of actuarial assumptions for the pension plans | The Company reassesses its benefit plan assumptions on a regular basis. The actuarial assumptions for the defined benefit plans for fiscal years 2016 and 2015 were as follows: | | | | | | | | Years Ended March 31, | | | 2016 | | 2015 | Benefit Obligations: | | | | | Discount rate | | 0.5%-8.00% | | 0.75%-7.75% | Estimated rate of compensation increase | | 2.50%-10.00% | | 2.50%-8.00% | Periodic Costs: | | | | | Discount rate | | 0.75%-7.75% | | 1.50%-9.25% | Estimated rate of compensation increase | | 0.0%-8.00% | | 2.50%-8.00% | Expected average rate of return on plan assets | | 1.00%-2.75% | | 0.75%-3.50% |
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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, | | | 2017 | | $ | 4,751 |
| 2018 | | 4,954 |
| 2019 | | 5,307 |
| 2020 | | 6,026 |
| 2021 | | 5,241 |
| 2022-2026 | | 29,520 |
| | | $ | 55,799 |
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