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Employee Benefit Plans - Obligations and Funded Status (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Change in plan assets: |  |  |
Fair value of plan assets — beginning of year | $ 397.2 |  |
Fair value of plan assets — end of year | 441.7 | $ 397.2 |
Postretirement Plans |  |  |
Change in projected benefit obligation: |  |  |
Projected benefit obligation — beginning of year | 68.8 | 77.6 |
Service cost | 0.0 | 0.0 | $ 0.0
Interest cost | 2.4 | 2.3 | 3.5
Actuarial (gains) losses | 2.5 | (2.3) |
Plan amendment | (1.8) | (0.1) |
Other | (0.2) | (0.4) |
Benefits paid | (8.1) | (8.3) |
Projected benefit obligation — end of year | 63.6 | 68.8 | 77.6
Change in plan assets: |  |  |
Funded status at year-end | (63.6) | (68.8) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Other assets | 0.0 |  |
Accrued expenses | (7.2) | (8.3) |
Other long-term liabilities | (56.4) | (60.5) |
Net amount recognized | (63.6) | (68.8) |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of: |  |  |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of — net prior service (credits) costs | (24.9) | (27.1) |
Pension plans |  |  |
Employee benefit plans |  |  |
Non-funded plan, current underfunded status | 64.9 |  |
United States |  |  |
Change in projected benefit obligation: |  |  |
Projected benefit obligation — beginning of year | 320.9 | 357.1 |
Service cost | 0.0 | 0.0 | 0.3
Interest cost | 13.3 | 12.3 | 13.4
Actuarial (gains) losses | 32.4 | (25.4) |
Settlements | (12.7) | (11.1) |
Acquisition | 7.1 | 0.0 |
Plan amendment | 0.0 | 0.0 |
Benefits paid | (12.8) | (12.0) |
Foreign exchange and other | 0.0 | 0.0 |
Projected benefit obligation — end of year | 348.2 | 320.9 | 357.1
Change in plan assets: |  |  |
Fair value of plan assets — beginning of year | 238.0 | 269.7 |
Actual return on plan assets | 35.7 | (14.8) |
Contributions (employer and employee) | 6.2 | 6.2 |
Settlements | (12.7) | (11.1) |
Acquisition | 9.2 | 0.0 |
Benefits paid | (12.8) | (12.0) |
Foreign exchange and other | 0.0 | 0.0 |
Fair value of plan assets — end of year | 263.6 | 238.0 | 269.7
Funded status at year-end | (84.6) | (82.9) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Other assets | 2.3 | 0.0 |
Accrued expenses | (5.5) | (5.6) |
Other long-term liabilities | (81.4) | (77.3) |
Net amount recognized | (84.6) | (82.9) |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of: |  |  |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of — net prior service (credits) costs | (0.3) | (0.4) |
Foreign Plan |  |  |
Change in projected benefit obligation: |  |  |
Projected benefit obligation — beginning of year | 158.2 | 175.2 |
Service cost | 0.0 | 0.0 | 0.0
Interest cost | 4.8 | 4.7 | 4.9
Actuarial (gains) losses | 13.2 | (6.8) |
Settlements | 0.0 | 0.0 |
Acquisition | 0.0 | 0.0 |
Plan amendment | 0.0 | 1.2 |
Benefits paid | (8.0) | (5.0) |
Foreign exchange and other | 6.8 | (11.1) |
Projected benefit obligation — end of year | 175.0 | 158.2 | 175.2
Change in plan assets: |  |  |
Fair value of plan assets — beginning of year | 159.2 | 183.4 |
Actual return on plan assets | 19.4 | (8.7) |
Contributions (employer and employee) | 1.0 | 1.1 |
Settlements | 0.0 | 0.0 |
Acquisition | 0.0 | 0.0 |
Benefits paid | (8.0) | (5.0) |
Foreign exchange and other | 6.5 | (11.6) |
Fair value of plan assets — end of year | 178.1 | 159.2 | $ 183.4
Funded status at year-end | 3.1 | 1.0 |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Other assets | 6.2 | 3.3 |
Accrued expenses | 0.0 | 0.0 |
Other long-term liabilities | (3.1) | (2.3) |
Net amount recognized | 3.1 | 1.0 |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of: |  |  |
Amount recognized in accumulated other comprehensive income (pre-tax) consists of — net prior service (credits) costs | $ 1.2 | $ 1.2 |

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 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/disclosureRef -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/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 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 6: 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 + Details
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