Defined Benefit Plan, Amortization of Actuarial Losses, Amortization Period

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- Definition

Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements, Lump-Sum Payout Offer

+ References

No definition available.

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- Definition

The minimum age for an employee to retire to be covered by the continuation of medical benefits under the postretirement benefit plan.

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No definition available.

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- Definition

Multiemployer Plans, Collective-Bargaining Arrangement, Number of Agreements

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Multiemployer Plans, Number of Plans

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
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- Definition

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accumulated Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6503844

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-Name Accounting Standards Codification
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Curtailment
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- Definition

Amount of plan assets that relate to an irrevocable action that relieves the employer, or plan, of primary responsibility for a benefit obligation and eliminates risks related to the obligation and the assets used to effect settlement. Includes, but is not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified pension benefits and purchasing annuity contracts to cover vested benefits.

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- Definition

Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

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- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

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- Definition

Amount of tax (expense) benefit, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity.

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Pension and Other Postretirement Benefit Plans - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) CompensationPlan yr Agreement	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Services completed by employees for eligibility, retiring age \| yr	55
Accumulated benefit obligation	$ 973.7	$ 1,099.2
Tax benefit (expense) related to defined benefit plans recognized in other comprehensive income (loss)	$ (7.1)	(8.3)	$ 56.5
Number of multi-employer pension plans \| CompensationPlan	2
Number of collective bargaining agreements \| Agreement	3
Defined contribution expense	$ 14.4	13.3	12.0
Defined contribution retirement program
Defined Benefit Plan Disclosure [Line Items]
Defined contribution expense	$ 21.2	19.4	17.8
April 24, 2020
Defined Benefit Plan Disclosure [Line Items]
Number of collective bargaining agreements \| Agreement	1
July 3, 2020
Defined Benefit Plan Disclosure [Line Items]
Number of collective bargaining agreements \| Agreement	2
Defined benefit pension plans \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Period for amortizing actuarial losses	5 years 10 months 24 days
Estimated minimum required contributions to pension plans in next fiscal year	$ 10.0
Defined benefit pension plans \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Period for amortizing actuarial losses	29 years
Estimated minimum required contributions to pension plans in next fiscal year	$ 15.0
U.S. Pension
Defined Benefit Plan Disclosure [Line Items]
Lump-Sum Payout settlement payments	154.9	0.0
Lump-Sum Payout settlement charge	34.2
Curtailment gain (loss)	$ 0.0	0.0	0.0
U.S. Pension \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	50.00%
Maximum target percentage of asset allocation	75.00%
U.S. Pension \| Debt securities, mutual funds
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	15.00%
Maximum target percentage of asset allocation	40.00%
U.S. Pension \| Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	0.00%
Maximum target percentage of asset allocation	30.00%
U.S. Pension \| Cash and other
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	0.00%
Maximum target percentage of asset allocation	10.00%
Foreign Pension
Defined Benefit Plan Disclosure [Line Items]
Lump-Sum Payout settlement payments	$ 0.0	0.0
Curtailment gain (loss)	$ 0.0	$ (7.7)	$ 0.0
Foreign Pension \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	45.00%
Maximum target percentage of asset allocation	65.00%
Foreign Pension \| Debt securities, mutual funds
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	25.00%
Maximum target percentage of asset allocation	45.00%
Foreign Pension \| Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	0.00%
Maximum target percentage of asset allocation	25.00%
Foreign Pension \| Cash and other
Defined Benefit Plan Disclosure [Line Items]
Minimum target percentage of asset allocation	0.00%
Maximum target percentage of asset allocation	15.00%
Other postretirement plans \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Period for amortizing actuarial losses	2 years 3 months 18 days
Other postretirement plans \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Period for amortizing actuarial losses	19 years
Unionized employees \| Multi-employer plan total contributions
Defined Benefit Plan Disclosure [Line Items]
Concentration risk percentage (more than)	5.00%	5.00%