Defined Benefit Plan, Average Future Service Period

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- Definition

Government Sponsored Plans, Contributions

+ References

No definition available.

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- Definition

Multiemployer Plan, Collective-Bargaining Arrangement, Percentage of Employer's Collective-Bargaining Participants Covered

+ References

No definition available.

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- Definition

Multiemployer Plan, Net Periodic Benefit Cost (Credit)

+ References

No definition available.

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- Definition

Multiemployer Plan, Plan Withdrawal Expense

+ References

No definition available.

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- Definition

Multiemployer Plans, Contribution Term

+ References

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- Definition

Multiemployer Plans, Funded (Unfunded) Status of Plan

+ References

No definition available.

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- Definition

Multiemployer Plans, Monthly Contributions

+ References

No definition available.

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ 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 (k)(3)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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- Definition

Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

+ 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 (s)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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- Definition

Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ 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
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- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
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-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e2709-114920

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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

Amount of cost for defined contribution plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
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- Definition

Amount of minimum contribution(s) required for future periods to a multiemployer plan by collective bargaining arrangements, statutory obligations, or other contractual obligations. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (f)(3)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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Employee Benefit Plans - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected contributions to all plans in 2019		$ 2,500,000
Percentage of union employees covered		60.00%
Multiemployer plan expense		$ 17,400,000	$ 17,000,000	$ 16,600,000
Minimum contribution to multiemployer plan		17,100,000
Multi-Employer pension plan withdrawal expense and amortization	$ 9,200,000	260,000	9,134,000	0
Contributions to government sponsored plan		5,700,000	5,400,000	4,800,000
Defined contribution plan expense		3,900,000	$ 3,600,000	$ 3,600,000
U.S. Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected amortization of estimated net gain (loss)		(2,100,000)
Expected amortization of prior service cost		$ 0
Expected return on plan assets		6.50%
Offshore Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected amortization of estimated net gain (loss)		$ 0
Expected return on plan assets		5.00%
Pension \| Retirement Income Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Average future service period		6 years 5 months
Expected return on plan assets		7.00%	7.00%	7.50%
Pension \| National Service-Related Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Average future service period		7 years 7 months
Expected return on plan assets		7.00%	7.00%	7.50%
Pension \| Superannuation
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Average future service period		7 years 5 months
Expected return on plan assets		6.00%	6.00%	6.50%
Other Post-Retirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Average future service period		5 years 8 months
New England Teamsters & Trucking Industry Pension Plan \| Multiemployer Plans, Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Unfunded liability on multiemployer plan		$ 13,700,000
Monthly installments on multiemployer plan		$ 40,000
Contribution term of multiemployer plan		30 years