Defined benefit plan amortization of net gains losses deferred tax assets

No definition available.

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- Definition

Defined benefit plan amortization of net prior service cost credit deferred tax assets

+ References

No definition available.

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- Definition

Defined benefit plan future amortization of net gain loss deferred tax assets.

+ References

No definition available.

+ Details

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- Definition

Number of employees.

+ References

No definition available.

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- Definition

Percentage of pension asset equity securities in mid and large capitalization funds.

+ References

No definition available.

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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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to transition obligation (asset) expected to be recognized as components of net periodic benefit cost (credit) for the fiscal year that follows the most recent annual statement of financial position.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (s)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

The increase in the fair value of plan assets from contributions made by the employer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

+ Details

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

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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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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- Definition

The carrying amount as of the balance sheet date of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.15)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 712

-SubTopic 10

-Section 25

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6410138&loc=d3e79691-111665

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-Name Accounting Standards Codification

-Topic 712

-SubTopic 10

-Section 25

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6410138&loc=d3e79708-111665

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Retirement Plans Postretirement and Postemployment Benefits - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension and Other Postretirement Benefits Disclosure [Line Items]
Accumulated benefit obligation for defined benefit pension plans	$ 684,647,000	$ 453,161,000
Pension and SERP contributions	25,654,000	28,995,000
Corporation's matching obligations	8,602,000	7,097,000	6,216,000
Accrued postemployment benefits	1,267,000	1,096,000
Equity Securities
Pension and Other Postretirement Benefits Disclosure [Line Items]
Percentage of pension asset equity securities in mid and large capitalization funds	50.00%
Financial Security Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Number of employees	60
Reversed Pension And Postretirement Plans
Pension and Other Postretirement Benefits Disclosure [Line Items]
Number of employees	600
Pension
Pension and Other Postretirement Benefits Disclosure [Line Items]
Number of employees	2,000
Prior service cost, recognized in net periodic benefit cost	422,000
Prior service cost, recognized in net periodic benefit cost - deferred tax asset and liability	166,000
Actuarial gain (loss), recognized in net periodic benefit cost	12,432,000
Actuarial gain (loss), recognized in net periodic benefit cost - deferred tax asset and liability	4,897,000
Transition assets, recognized in net periodic benefit cost	1,000
Pension and SERP contributions	25,654,000	28,995,000
SERP Plans
Pension and Other Postretirement Benefits Disclosure [Line Items]
Estimated contribution of pension plans	33,500,000
Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Prior service cost, recognized in net periodic benefit cost	2,302,000
Prior service cost, recognized in net periodic benefit cost - deferred tax asset and liability	907,000
Actuarial gain (loss), recognized in net periodic benefit cost	328,000
Pension and SERP contributions	2,756,000	1,972,000
Prior service cost, recognized in net periodic benefit cost - deferred tax asset and liability	129,000
Postretirement Health Care Plans [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Estimated contribution of pension plans	$ 2,770,000