Represents the amount of benefits expected to be paid in following the latest fiscal year from a defined benefit plan.

No definition available.

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- Definition

Represents the period of operating history and sufficient trading volume of invested entity.

+ References

No definition available.

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

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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.

+ 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)

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930

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- Definition

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

+ 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 (d)(i)

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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

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- Definition

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

+ 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 (d)(i)

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

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-Publisher FASB

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- Definition

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

+ 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 (d)(i)

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

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

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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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Employee Benefit Plans (Details 3) (USD $)	12 Months Ended
Employee Benefit Plans (Details 3) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
401(k) retirement plan
Expense recognized in the 401(k) retirement plan	$ 3,800,000	$ 3,900,000	$ 4,000,000
Pension Plan
Employee Benefits Plans
Fair value of plan assets	124,372,000	120,604,000	102,174,000
Expected future pension benefit payments
2015	9,161,000
2016	9,348,000
2017	9,588,000
2018	9,775,000
2019	9,941,000
2020-2023	55,210,000
Total	103,023,000
Qualified Pension Plan
Employee Benefits Plans
Fair value of plan assets	124,372,000	120,604,000
Investments as a percent of Plan assets	100.00%	100.00%
Qualified Pension Plan \| Minimum
Expected future pension benefit payments
Period of operating history and sufficient trading volume of invested entity	5 years
Qualified Pension Plan \| Domestic Equities
Employee Benefits Plans
Target (as a percent)	50.00%
Acceptable Range, Minimum (as a percent)	35.00%
Acceptable Range, Maximum (as a percent)	75.00%
Qualified Pension Plan \| Large Cap Growth
Employee Benefits Plans
Target (as a percent)	22.50%
Acceptable Range, Minimum (as a percent)	15.00%
Acceptable Range, Maximum (as a percent)	30.00%
Qualified Pension Plan \| Large Cap Value
Employee Benefits Plans
Target (as a percent)	22.50%
Acceptable Range, Minimum (as a percent)	15.00%
Acceptable Range, Maximum (as a percent)	30.00%
Qualified Pension Plan \| Mid Cap Value
Employee Benefits Plans
Target (as a percent)	5.00%
Acceptable Range, Minimum (as a percent)	5.00%
Acceptable Range, Maximum (as a percent)	15.00%
Qualified Pension Plan \| Mid Cap Growth
Employee Benefits Plans
Target (as a percent)	0.00%
Acceptable Range, Minimum (as a percent)	0.00%
Acceptable Range, Maximum (as a percent)	10.00%
Qualified Pension Plan \| Domestic Fixed Income
Employee Benefits Plans
Target (as a percent)	35.00%
Acceptable Range, Minimum (as a percent)	15.00%
Acceptable Range, Maximum (as a percent)	50.00%
Qualified Pension Plan \| International Equities
Employee Benefits Plans
Target (as a percent)	15.00%
Acceptable Range, Minimum (as a percent)	10.00%
Acceptable Range, Maximum (as a percent)	25.00%
Qualified Pension Plan \| LM Institutional Fund Advisors I Inc Western Asset Core Plus
Employee Benefits Plans
Fair value of plan assets	15,734,000	16,643,000
Investments as a percent of Plan assets	14.00%	14.00%
Qualified Pension Plan \| State Street Government STIF 15
Employee Benefits Plans
Fair value of plan assets	10,332,000
Investments as a percent of Plan assets	8.00%
Qualified Pension Plan \| PIMCO Total Return Fund Institutional Class
Employee Benefits Plans
Fair value of plan assets	$ 13,715,000	$ 13,817,000
Investments as a percent of Plan assets	11.00%	11.00%