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Retirement Benefit Plans (Tables) | 12 Months Ended
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Jan. 31, 2018
Retirement Benefits [Abstract] |
Schedule of Changes in Projected Benefit Obligations | The changes in the projected benefit obligations and plan assets for the plans described above were as follows:
| Fiscal year ended January 31,
| 2018 |  | 2017
Beginning projected benefit obligation | $ | 146.4 |  |  | $ | 145.2 |
Service cost | 5.2 |  |  | 5.6 |
Interest cost | 2.7 |  |  | 3.0 |
Actuarial (gain) loss | (2.8 | ) |  | 7.1 |
Benefits paid | (3.3 | ) |  | (2.6 | )
Foreign currency exchange rate changes | 13.9 |  |  | (9.5 | )
Curtailments and settlements | (8.2 | ) |  | (6.8 | )
Contributions by plan participants | 4.0 |  |  | 4.4 |
Plan amendment | 0.2 |  |  | — |
Ending projected benefit obligation | $ | 158.1 |  |  | $ | 146.4 |
Beginning fair value of plan assets | $ | 107.4 |  |  | $ | 101.4 |
Actual return on plan assets | 3.8 |  |  | 4.2 |
Contributions paid by employer | 6.5 |  |  | 15.3 |
Contributions paid by plan participants | 4.0 |  |  | 4.4 |
Benefit payments | (3.3 | ) |  | (2.6 | )
Curtailments and settlements | (8.0 | ) |  | (6.8 | )
Foreign currency exchange rate changes | 10.7 |  |  | (8.5 | )
Ending fair value of plan assets | $ | 121.1 |  |  | $ | 107.4 |
Funded status | $ | (37.0 | ) |  | $ | (39.0 | )
Schedule of Amounts Recognized in Balance Sheet | The amounts recognized on the consolidated balance sheets at the end of each period were as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017
Other long-term liabilities | $ | 37.0 |  |  | $ | 39.0 |
Accumulated other comprehensive loss, before tax | 31.7 |  |  | 37.0 |
Net amount recognized | $ | 68.7 |  |  | $ | 76.0 |
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets | Included in the aggregate data in the following tables are the amounts applicable to the Company's defined benefit pension plans, with accumulated benefit obligations in excess of plan assets, as well as plans with projected benefit obligations in excess of plan assets. Amounts related to such plans at the end of each period were as follows:
|  | Fiscal Year Ended January 31,
|  | 2018 |  | 2017
Plans with accumulated benefit obligations in excess of plan assets: |  |  |  |
Accumulated benefit obligations |  | $ | 130.7 |  |  | $ | 119.2 |
Plan assets |  | 112.1 |  |  | 98.3 |
Plans with projected benefit obligations in excess of plan assets: |  |  |  |
Projected benefit obligations |  | $ | 158.1 |  |  | $ | 146.4 |
Plan assets |  | 121.1 |  |  | 107.4 |
Schedule of Allocation of Plan Assets | Defined benefit pension plan assets measured at fair value on a recurring basis consisted of the following investment categories at the end of each period as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017
| Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |  |  | Total
Insurance contracts | $ | — |  |  | $ | 53.0 |  |  | $ | — |  |  | $ | 53.0 |  |  | $ | 46.3 |
Other investments | — |  |  | 17.0 |  |  | — |  |  | 17.0 |  |  | 9.4 |
Total assets measured at fair value | $ | — |  |  | $ | 70.0 |  |  | $ | — |  |  | 70.0 |  |  | 55.7 |
Cash |  |  |  |  |  |  | 0.2 |  |  | — |
Investment Fund valued using net asset value |  |  |  |  |  |  | 50.9 |  |  | 51.7 |
Total pension plan assets at fair value |  |  |  |  |  |  | $ | 121.1 |  |  | $ | 107.4 |
Schedule of Expected Benefit Payments | Estimated benefit payments over the next 10 fiscal years are as follows:
| Pension Benefits
2019 | $ | 7.1 |
2020 | 6.5 |
2021 | 6.4 |
2022 | 6.4 |
2023 | 6.4 |
2024-2028 | 34.8 |
Schedule of Net Benefit Costs | The components of net periodic pension cost for the defined benefit pension plans for fiscal 2018, 2017, and 2016 are as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017 |  | 2016
Service cost for benefits earned during the period | $ | 5.2 |  |  | $ | 5.6 |  |  | $ | 5.7 |
Interest cost on projected benefit obligation | 2.7 |  |  | 3.0 |  |  | 3.3 |
Expected return on plan assets | (3.9 | ) |  | (4.2 | ) |  | (3.9 | )
Amortization of prior service credit | (0.3 | ) |  | (0.3 | ) |  | (0.1 | )
Amortization of loss | 1.2 |  |  | 1.5 |  |  | 1.4 |
Settlement loss | 1.9 |  |  | 1.2 |  |  | — |
Curtailment gain | (0.1 | ) |  | — |  |  | — |
Net periodic benefit cost | $ | 6.7 |  |  | $ | 6.8 |  |  | $ | 6.4 |
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) | The components of other comprehensive income for the defined benefit pension plans before taxes for fiscal 2018, 2017, and 2016 are as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017 |  | 2016
Prior service credit for period | $ | 0.2 |  |  | $ | — |  |  | $ | (2.2 | )
Net (gain) loss for period | (2.5 | ) |  | 7.2 |  |  | 9.1 |
Effect of settlement | (1.9 | ) |  | (1.2 | ) |  | — |
Effect of curtailment | (0.2 | ) |  | — |  |  | — |
Amortization of prior service credit | 0.3 |  |  | 0.3 |  |  | 0.1 |
Amortization of net loss | (1.2 | ) |  | (1.5 | ) |  | (1.4 | )
Other comprehensive (income) loss | $ | (5.3 | ) |  | $ | 4.8 |  |  | $ | 5.6 |
Schedule of Net Periodic Benefit Cost Not yet Recognized | The amounts recorded in accumulated other comprehensive loss before taxes at the end of each period were as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017
Net prior service credit | $ | (3.1 | ) |  | $ | (3.6 | )
Net actuarial loss | 34.8 |  |  | 40.6 |
Accumulated other comprehensive loss, before tax | $ | 31.7 |  |  | $ | 37.0 |
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year | The estimated amounts that will be amortized from accumulated other comprehensive loss into net periodic benefit cost over the next fiscal year for the qualified defined benefit pension plans are as follows:
| Pension Benefits
Amortization of prior service credit | $ | 0.2 |
Amortization of the net loss | (0.6 | )
Total amortization | $ | (0.4 | )
Schedule of Assumptions Used | Weighted average actuarial assumptions used to determine benefit obligations for the plans at the end of each period were as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017 |  | 2016
Discount rate | 1.8 | % |  | 1.7 | % |  | 2.2 | %
Rate of compensation increase | 2.6 | % |  | 2.6 | % |  | 2.6 | %
Weighted average actuarial assumptions used to determine costs for the plans for each period were as follows:
| Fiscal Year Ended January 31,
| 2018 |  | 2017 |  | 2016
Discount rate | 2.4 | % |  | 3.2 | % |  | 3.2 | %
Expected long-term rate of return on plan assets | 3.3 | % |  | 4.3 | % |  | 3.8 | %
Rate of compensation increase | 2.3 | % |  | 2.2 | % |  | 2.2 | %

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- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2439-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2410-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=77993564&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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