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Retirement Benefit Plans (Tables) | 12 Months Ended
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Jan. 31, 2015
Compensation and Retirement Disclosure [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,
| 2015 |  | 2014
Beginning projected benefit obligation | $ | 62.2 |  |  | $ | 61.5 |
Service cost | 4.6 |  |  | 5.4 |
Interest cost | 3.9 |  |  | 1.1 |
Actuarial loss (gain) | 18.8 |  |  | (3.2 | )
Benefits paid | (7.5 | ) |  | (5.9 | )
Foreign currency exchange rate changes | (1.2 | ) |  | 0.8 |
Curtailments and settlements | (2.9 | ) |  | — |
Contributions by plan participants | 5.9 |  |  | 2.5 |
Business combinations | 60.9 |  |  | — |
Ending projected benefit obligation | $ | 144.7 |  |  | $ | 62.2 |
Beginning fair value of plan assets | $ | 40.7 |  |  | $ | 37.5 |
Actual return on plan assets | 4.1 |  |  | 0.9 |
Contributions paid by employer | 4.9 |  |  | 5.2 |
Contributions paid by plan participants | 5.9 |  |  | 2.5 |
Benefit payments | (7.5 | ) |  | (5.9 | )
Curtailments and settlements | (2.9 | ) |  | — |
Foreign currency exchange rate changes | (1.2 | ) |  | 0.5 |
Business combinations | 60.2 |  |  | — |
Ending fair value of plan assets | $ | 104.2 |  |  | $ | 40.7 |
Funded status | $ | (40.5 | ) |  | $ | (21.5 | )
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,
| 2015 |  | 2014
Other long-term liabilities | $ | 40.5 |  |  | $ | 21.5 |
Accumulated other comprehensive loss, before tax | 26.6 |  |  | 8.7 |
Net amount recognized | $ | 67.1 |  |  | $ | 30.2 |
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 our defined benefit 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,
|  | 2015 |  | 2014
Plans with accumulated benefit obligations in excess of plan assets: |  |  |  |
Accumulated benefit obligations |  | $ | 124.0 |  |  | $ | 45.3 |
Plan Assets |  | 103.9 |  |  | 40.7 |
Plans with projected benefit obligations in excess of plan assets: |  |  |  |
Projected benefit obligations |  | $ | 144.7 |  |  | $ | 62.2 |
Plan Assets |  | 104.2 |  |  | 40.7 |
Schedule of Allocation of Plan Assets | 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,
| 2015 |  | 2014
| Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |  | Total
Investment fund | $ | 55.7 |  |  | $ | 4.9 |  |  | $ | — |  |  | $ | 60.6 |  |  | $ | — |
Insurance contracts | — |  |  | 43.5 |  |  | — |  |  | 43.5 |  |  | 40.2 |
Total assets measured at fair value | 55.7 |  |  | 48.4 |  |  | — |  |  | 104.1 |  |  | 40.2 |
Cash | 0.1 |  |  | — |  |  | — |  |  | 0.1 |  |  | 0.5 |
Total pension plan assets at fair value | $ | 55.8 |  |  | $ | 48.4 |  |  | $ | — |  |  | $ | 104.2 |  |  | $ | 40.7 |
Schedule of Expected Benefit Payments | Estimated benefit payments over the next 10 fiscal years are as follows:
| Pension Benefits
2016 | $ | 3.5 |
2017 | 3.4 |
2018 | 3.5 |
2019 | 3.3 |
2020 | 3.1 |
2021-2025 | 17.5 |
Schedule of Net Benefit Costs | The components of net periodic pension cost for the defined benefit pension plans for fiscal 2015, 2014, and 2013 are as follows:
| Fiscal Year Ended January 31,
| 2015 |  | 2014 |  | 2013
Service cost for benefits earned during the period | $ | 4.6 |  |  | $ | 5.4 |  |  | $ | 4.5 |
Interest cost on projected benefit obligation | 3.9 |  |  | 1.1 |  |  | 1.3 |
Expected return on plan assets | (4.6 | ) |  | (0.8 | ) |  | (0.8 | )
Amortization of prior service credit | (0.1 | ) |  | (0.1 | ) |  | (0.1 | )
Amortization of loss | 0.6 |  |  | 1.0 |  |  | 0.7 |
Net periodic benefit cost | $ | 4.4 |  |  | $ | 6.6 |  |  | $ | 5.6 |
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 2015, 2014, and 2013 are as follows:
| Fiscal Year Ended January 31,
| 2015 |  | 2014 |  | 2013
Net loss (gain) for period | $ | 18.4 |  |  | $ | (3.9 | ) |  | $ | 6.3 |
Amortization of prior service credit | 0.1 |  |  | 0.1 |  |  | 0.1 |
Amortization of net loss | (0.6 | ) |  | (1.0 | ) |  | (0.7 | )
Other comprehensive loss (income) | $ | 17.9 |  |  | $ | (4.8 | ) |  | $ | 5.7 |
Schedule of Net Periodic Benefit Cost Not yet Recognized | The amounts recorded in accumulated other comprehensive income loss before taxes at the end of each period were as follows:
| Fiscal Year Ended January 31,
| 2015 |  | 2014
Net prior service credit | $ | (1.8 | ) |  | $ | (1.9 | )
Net actuarial loss | 28.4 |  |  | 10.6 |
Accumulated other comprehensive loss, before tax | $ | 26.6 |  |  | $ | 8.7 |
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year | The estimated amounts that will be amortized from AOCI into net periodic benefit cost over the next fiscal year for the qualified defined benefit pension plan and other benefit plans are as follows:
| Pension Benefits
Amortization of prior service credit | $ | 0.1 |
Amortization of the net loss | (1.5 | )
Total amortization | $ | (1.4 | )
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,
| 2015 |  | 2014 |  | 2013
Discount rate | 2.4 | % |  | 2.2 | % |  | 1.8 | %
Rate of compensation increase | 1.2 | % |  | 2.2 | % |  | 2.0 | %
Weighted average actuarial assumptions used to determine costs for the plans for each period were as follows:
| Fiscal Year Ended January 31,
| 2015 |  | 2014 |  | 2013
Discount rate | 3.3 | % |  | 2.3 | % |  | 1.8 | %
Expected long-term rate of return on plan assets | 3.9 | % |  | 1.9 | % |  | 2.0 | %
Rate of compensation increase | 2.2 | % |  | 2.2 | % |  | 2.1 | %

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- Definition Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of 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 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2417-114920 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + 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 (s) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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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=35743120&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=35743120&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=35743120&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 1 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 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=35743120&loc=d3e2417-114920 Reference 3: 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=34716465&loc=d3e4179-114921 Reference 4: 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=35743120&loc=d3e2439-114920 Reference 5: 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=35743120&loc=d3e2410-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + 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 (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + 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 (h) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income or loss that have not yet been recognized as components of net periodic benefit cost, such as the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + 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 (j) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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