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v3.19.3.a.u2

Pensions (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Components of net periodic benefit cost [Abstract] |  |  |  |  |
Net periodic benefit cost | [1] | $ 0.7 | $ 0.6 | $ 2.1 | $ 2.0
Pension [Member] |  |  |  |  |
Components of net periodic benefit cost [Abstract] |  |  |  |  |
Service cost |  | 0.1 | 0.2 | 0.3 | 0.4
Interest cost |  | 2.3 | 2.4 | 6.8 | 7.2
Expected return on plan assets |  | (3.0) | (3.1) | (8.9) | (9.2)
Amortization of unrecognized net loss |  | 1.5 | 1.4 | 4.5 | 4.2
Net periodic benefit cost |  | $ 0.9 | $ 0.9 | 2.7 | 2.6
Pension [Member] | United States [Member] |  |  |  |  |
Defined benefit plan, plan assets [Abstract] |  |  |  |  |
Employer contributions |  |  |  | $ 2.6 | $ 4.6
[1] | Net periodic benefit cost for the Company’s pension and postretirement plans is exclusive of service cost.

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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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