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Benefit Plans (Tables) | 12 Months Ended
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Mar. 31, 2019
Notes To Financial Statements [Abstract] |
Schedule of Expected Benefit Payments | Based upon the actuarial assumptions utilized to develop our benefit obligations at March 31, 2019, the following benefit payments are expected to be made to plan participants:
|  | Other Defined Benefit Pension Plans |  | Other Post-Retirement Benefits Plan
2020 |  | $ | 5,613 |  |  | $ | 1,633 |
2021 |  | 5,767 |  |  | 1,499 |
2022 |  | 5,928 |  |  | 1,394 |
2023 |  | 6,441 |  |  | 1,261 |
2024 |  | 6,254 |  |  | 1,139 |
2025-2030 |  | 34,102 |  |  | 4,244 |
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) | During fiscal 2020, we will amortize the following pre-tax amounts from accumulated other comprehensive income:
|  | Defined Benefit Pension Plans |  | Other Post-Retirement Benefits Plan
Actuarial loss |  | $ | 8 |  |  | $ | 552 |
Prior Service Cost |  | 71 |  |  | (3,263 | )
Schedule of Accrued Liabilities | Amounts recognized in the consolidated balance sheets consist of the following:
|  | Other Defined Benefit Pension Plans |  | Other Post-Retirement Benefits Plan
|  | 2019 |  | 2018 |  | 2019 |  | 2018
Current liabilities |  | $ | — |  |  | $ | — |  |  | $ | (1,633 | ) |  | $ | (1,906 | )
Noncurrent liabilities |  | (16,168 | ) |  | (29,407 | ) |  | (10,918 | ) |  | (12,194 | )
|  | $ | (16,168 | ) |  | $ | (29,407 | ) |  | $ | (12,551 | ) |  | $ | (14,100 | )
Schedule of Accumulated and Projected Benefit Obligations | Defined benefit plans with an accumulated benefit obligation and projected benefit obligation exceeding the fair value of plan assets had the following plan assets and obligations at March 31, 2019 and 2018:
|  | Other Defined Benefit Pension Plans
|  | 2019 |  | 2018
Aggregate fair value of plan assets |  | $ | 117,504 |  |  | $ | 119,441 |
Aggregate accumulated benefit obligations |  | 130,669 |  |  | 148,848 |
Aggregate projected benefit obligations |  | 133,672 |  |  | 148,848 |
Components of Net Periodic Benefits Cost and Other Amounts Recognized in Other Comprehensive Income [Table Text Block] | Components of the annual net periodic benefit cost of our defined benefit pension plans and our other post-retirement benefits plan were as follows:
|  | Other Defined Benefit Pension Plans |  | Other Post-Retirement Benefits Plan
|  | 2019 |  | 2018 |  | 2017 |  | 2019 |  | 2018 |  | 2017
Service cost |  | $ | 2,394 |  |  | $ | 2,402 |  |  | $ | 1,650 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Interest cost |  | 3,139 |  |  | 3,262 |  |  | 3,434 |  |  | 457 |  |  | 519 |  |  | 554 |
Expected return on plan assets |  | (4,930 | ) |  | (4,835 | ) |  | (2,853 | ) |  |  |  | — |  |  | — |
Prior service cost recognition |  | 51 |  |  | — |  |  | — |  |  | (3,263 | ) |  | (3,263 | ) |  | (3,263 | )
Net amortization and deferral |  | 474 |  |  | 126 |  |  | — |  |  | 552 |  |  | 648 |  |  | 739 |
Net periodic benefit cost |  | $ | 1,128 |  |  | $ | 955 |  |  | $ | 2,231 |  |  | $ | (2,254 | ) |  | $ | (2,096 | ) |  | $ | (1,970 | )
Recognized in other comprehensive loss (income) before tax: |  |  |  |  |  |  |  |  |  |  |  |
Net loss (gain) occurring during year |  | $ | (6,545 | ) |  | $ | (697 | ) |  | $ | (7,553 | ) |  | $ | 106 |  |  | $ | 501 |  |  | $ | 531 |
Amortization of prior service credit |  | 781 |  |  | — |  |  | — |  |  | 3,263 |  |  | 3,263 |  |  | 3,263 |
Amortization of net loss |  | (468 | ) |  | (126 | ) |  | — |  |  | (552 | ) |  | (648 | ) |  | (739 | )
Total recognized in other comprehensive loss (income) |  | (6,232 | ) |  | (823 | ) |  | (7,553 | ) |  | 2,817 |  |  | 3,116 |  |  | 3,055 |
Total recognized in total benefits cost and other comprehensive loss (income) |  | $ | (5,104 | ) |  | $ | 132 |  |  | $ | (5,322 | ) |  | $ | 563 |  |  | $ | 1,020 |  |  | $ | 1,085 |
Schedule of Net Benefit Costs | The following table presents significant assumptions used to determine the net periodic benefit costs for the years ended March 31:
|  | 2019 |  | 2018 |  | 2017
Discount Rate: |  |  |  |  |  |
Synergy Health plc Retirement Benefits Scheme |  | 2.50 | % |  | 2.60 | % |  | 3.50 | %
Isotron BV Pension Plan |  | 1.60 | % |  | 1.60 | % |  | 1.60 | %
Synergy Health Daniken AG |  | 0.95 | % |  | 0.65 | % |  | 0.65 | %
Synergy Health Radeberg |  | 1.60 | % |  | 1.50 | % |  | 1.50 | %
Synergy Health Allershausen |  | 1.60 | % |  | 1.50 | % |  | 1.50 | %
Harwell Dosimeters Ltd Retirement Benefits Scheme |  | 2.55 | % |  | 2.55 | % |  | n/a |
Other post-retirement plan |  | 3.50 | % |  | 3.50 | % |  | 3.50 | %
Expected Return on Plan Assets: |  |  |  |  |  |
Synergy Health plc Retirement Benefits Scheme |  | 5.02 | % |  | 4.97 | % |  | 4.87 | %
Isotron BV Pension Plan |  | 1.60 | % |  | 1.60 | % |  | 1.60 | %
Synergy Health Daniken AG |  | 1.20 | % |  | 1.40 | % |  | 1.40 | %
Schedule of Assumptions Used | The following table presents significant assumptions used to determine the projected benefit obligations at March 31:
|  | 2019 |  | 2018
Discount Rate: |  |  |  |
Synergy Health plc Retirement Benefits Scheme |  | 2.50 | % |  | 2.50 | %
Isotron BV Pension Plan |  | 1.20 | % |  | 1.60 | %
Synergy Health Daniken AG |  | 0.85 | % |  | 0.95 | %
Synergy Health Radeberg |  | 1.60 | % |  | 1.60 | %
Synergy Health Allershausen |  | 1.60 | % |  | 1.60 | %
Harwell Dosimeters Ltd Retirement Benefits Scheme |  | 2.35 | % |  | 2.55 | %
Other post-retirement plan |  | 3.50 | % |  | 3.50 | %
Schedule of Health Care Cost Trend Rates | The assumed rates of increase generally decline ratably over a five-year period from the assumed current year healthcare cost trend rate to the assumed long-term healthcare cost trend rate noted below.
|  | 2019 |  | 2018 |  | 2017
Healthcare cost trend rate – medical |  | 6.8 | % |  | 7.0 | % |  | 7.0 | %
Healthcare cost trend rate – prescription drug |  | 6.8 | % |  | 7.0 | % |  | 7.0 | %
Long-term healthcare cost trend rate |  | 4.5 | % |  | 4.5 | % |  | 4.5 | %
To determine the healthcare cost trend rates, we evaluate a combination of information, including ongoing claims cost monitoring, annual statistical analyses of claims data, reconciliation of forecasted claims against actual claims, review of trend assumptions of other plan sponsors and national health trends, and adjustments for plan design changes, workforce changes, and changes in plan participant behavior. A one-percentage-point change in assumed healthcare cost trend rates (including medical, prescription drug, and long-term rates) would have had the following effect on our other post-retirement benefit obligation at March 31, 2019:
|  | One-Percentage Point
|  | Increase |  | Decrease
Effect on total service and interest cost components |  | $ | — |  |  | $ | — |
Effect on other post-retirement benefit obligation |  | 11 |  |  | (11 | )
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | The fair value of our pension benefits plan assets at March 31, 2019 and 2018 by asset category is as follows:
|  | Fair Value Measurements at March 31, 2019
(In thousands) |  | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Other Unobservable Inputs (Level 3)
Cash |  | $ | 450 |  |  | $ | 450 |  |  | $ | — |  |  | $ | — |
Insured annuities |  | 14,720 |  |  | — |  |  | 14,720 |  |  | — |
Insurance contracts |  | 5,089 |  |  | — |  |  | — |  |  | 5,089 |
Common and collective trusts valued at net asset value: |  |  |  |  |  |  |  |
Equity security trusts |  | 73,532 |  |  | — |  |  | — |  |  | — |
Debt security trusts |  | 23,713 |  |  | — |  |  | — |  |  | — |
Total Plan Assets |  | $ | 117,504 |  |  | $ | 450 |  |  | $ | 14,720 |  |  | $ | 5,089 |
|  | Fair Value Measurements at March 31, 2018
(In thousands) |  | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Other Unobservable Inputs (Level 3)
Cash |  | $ | 67 |  |  | $ | 67 |  |  | $ | — |  |  | $ | — |
Insured annuities |  | 15,228 |  |  | — |  |  | 15,228 |  |  | — |
Insurance contracts |  | 5,484 |  |  | — |  |  | — |  |  | 5,484 |
Common and collective trusts valued at net asset value: |  |  |  |  |  |  |  |
Equity security trusts |  | 74,081 |  |  | — |  |  | — |  |  | — |
Debt security trusts |  | 24,581 |  |  | — |  |  | — |  |  | — |
Total Plan Assets |  | $ | 119,441 |  |  | $ | 67 |  |  | $ | 15,228 |  |  | $ | 5,484 |
Schedule of Defined Benefit Plans Disclosures |
| Other Defined Benefit Pension Plans |  | Other Post-Retirement Benefits Plan
| 2019 |  | 2018 |  | 2019 |  | 2018
Change in Benefit Obligations: |  |  |  |  |  |  |
Benefit Obligations at Beginning of Year | $ | 148,848 |  |  | $ | 128,897 |  |  | $ | 14,100 |  |  | $ | 16,008 |
Obligation assumed in business acquisition | — |  |  | 3,843 |  |  | — |  |  | — |
Service cost | 2,394 |  |  | 2,402 |  |  | — |  |  | — |
Prior service cost | 831 |  |  | — |  |  | — |  |  | — |
Interest cost | 3,255 |  |  | 3,262 |  |  | 457 |  |  | 519 |
Actuarial loss (gain) | (4,402 | ) |  | (697 | ) |  | (106 | ) |  | (501 | )
Benefits and expenses | (6,150 | ) |  | (6,075 | ) |  | (1,900 | ) |  | (1,926 | )
Employee contributions | 743 |  |  | 765 |  |  | — |  |  | — |
Impact of foreign currency exchange rate changes | (11,847 | ) |  | 16,451 |  |  | — |  |  | — |
Benefit Obligations at End of Year | 133,672 |  |  | 148,848 |  |  | 12,551 |  |  | 14,100 |
Change in Plan Assets: |  |  |  |  |  |  |
Fair Value of Plan Assets at Beginning of Year | 119,441 |  |  | 101,663 |  |  | — |  |  | — |
Assets assumed in business acquisition | — |  |  | 4,462 |  |  | — |  |  | — |
Actual return on plan assets | 6,543 |  |  | 1,052 |  |  | — |  |  | — |
Employer contributions | 5,005 |  |  | 5,150 |  |  | 1,900 |  |  | 1,926 |
Employee contributions | 742 |  |  | 765 |  |  | — |  |  | — |
Benefits and expenses paid | (6,150 | ) |  | (6,078 | ) |  | (1,900 | ) |  | (1,926 | )
Impact of foreign currency exchange rate changes | (8,077 | ) |  | 12,427 |  |  | — |  |  | — |
Fair Value of Plan Assets at End of Year | 117,504 |  |  | 119,441 |  |  | — |  |  | — |
Funded Status of the Plans | $ | (16,168 | ) |  | $ | (29,407 | ) |  | $ | (12,551 | ) |  | $ | (14,100 | )
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block] | The fair value measurement of plan assets using significant unobservable inputs (Level 3) changed during fiscal year 2019 due to the following:
|  | Insurance contracts
Balance at March 31, 2017 |  | $ | 3,959 |
Gains (losses) related to assets still held at year-end |  | (43 | )
Additions from business acquisition |  | 2,231 |
Transfers out of Level 3 |  | (852 | )
Foreign currency |  | 189 |
Balance at March 31, 2018 |  | $ | 5,484 |
Gains (losses) related to assets still held at year-end |  | 29 |
Transfers out of Level 3 |  | (132 | )
Foreign currency |  | (292 | )
Balance at March 31, 2019 |  | $ | 5,089 |

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