Defined benefit plan accumulated other comprehensive income net gains losses net of tax.

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- Definition

Pension curtailment gain recognized before tax.

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- Definition

Weighted average assumed annual rate of increase in the cost of medical benefits.

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No definition available.

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- Definition

Weighted average assumed annual rate of increase in trending linearly cost.

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- Definition

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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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.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

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- Definition

The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

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- Definition

Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

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-Glossary Prior Service Cost

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- Definition

Amount before tax, after reclassification adjustments, of actuarial gain (loss) that has not been recognized in the income statement.

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- Definition

Amount before tax, after reclassification adjustments, of prior service cost (credit) that has not been recognized in the income statement.

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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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.

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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 transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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- Definition

The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

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Pensions and Postretirement Benefits Other than Pensions - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Expenses for Company's defined contribution plans	$ 12,492	$ 12,522	$ 12,003
Unrecognized prior service credit included in cumulative other comprehensive loss	(2,736)	(3,301)
Unrecognized prior service credit, Net of tax included in cumulative other comprehensive loss	(2,078)	(2,427)
Unrecognized actuarial losses included in cumulative other comprehensive loss	(647,115)	(526,501)
Defined benefit plan accumulated other comprehensive income net gains losses net of tax	(546,502)	(473,723)
Prior service credit expected to be recognized in next fiscal year	(566)
Actuarial loss expected to be recognized in next fiscal year	(46,876)
Accumulated benefit obligation	1,558,908	1,401,109
Weighted average assumed annual rate of increase in the cost of medical benefits	7.00%
Weighted average assumed annual rate of increase in trending linearly cost	4.50%
Fair market value of plan assets	1,188,673	1,112,314	1,005,574
Fair value of assets transferred from level 1 to level 2		31,458
Contributed domestic and foreign pension plans	48,200us-gaap_PensionContributions
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Range Company expects to contribute to its domestic and foreign pension plans	45,000
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Range Company expects to contribute to its domestic and foreign pension plans	55,000
German Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	2,046	2,366
Cooper Avon Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension curtailment gain expected to be recognized				7,460
Pension Benefits - Domestic [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	857,825	823,790	745,871
U K Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	$ 328,802	$ 286,158