Pension and Other Post Retirement Plans (Details 2)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
U.S. qualified pension plan [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Allocations Minimum	50.00%
Allocations Maximum	80.00%
Total Target Allocation	100.00%	100.00%
U.S. qualified pension plan [Member] \| Real Estate Securities [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Allocations Minimum	0.00%
Actual Allocations	2.00%	2.00%
Allocations Maximum	7.00%
U.S. qualified pension plan [Member] \| U.S. Equities [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Allocations Minimum	20.00%
Actual Allocations	29.00%	29.00%
Allocations Maximum	50.00%
U.S. qualified pension plan [Member] \| International Equities [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Actual Allocations	4.00%	4.00%
U.K. pension plan [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Total Target Allocation	100.00%	100.00%
U.K. pension plan [Member] \| Other Securities [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Actual Allocations	9.00%	5.00%
U.K. pension plan [Member] \| Real Estate Securities [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Allocations Maximum	5.00%
U.K. pension plan [Member] \| Equity Securities UK Plan [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Actual Allocations	54.00%	56.00%
Allocations Maximum	55.00%
Debt Securities [Member] \| U.S. qualified pension plan [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Actual Allocations	65.00%	65.00%
Debt Securities [Member] \| U.K. pension plan [Member]
Defined Benefit Plan, Target Allocation Percentages of Assets, Equity Securities [Abstract]
Actual Allocations	37.00%	39.00%
Allocations Maximum	40.00%

-- None. No documentation exists for this element. --

No definition available.

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- Details

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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=28361610&loc=d3e1928-114920

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920

+ Details

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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

+ Details

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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

+ Details

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