Commitments and Contingencies (Details) (USD $)	3 Months Ended	163 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015 Claim
Changes in product warranties [Roll forward]
Balance, beginning of period	$ 19,328,000us-gaap_ProductWarrantyAccrual	$ 18,041,000us-gaap_ProductWarrantyAccrual
Liabilities accrued for current year sales	21,036,000	19,191,000
Settlements of warranty claims	(20,379,000)us-gaap_ProductWarrantyAccrualPayments	(16,858,000)us-gaap_ProductWarrantyAccrualPayments
Balance, end of period	19,985,000us-gaap_ProductWarrantyAccrual	20,374,000us-gaap_ProductWarrantyAccrual	19,985,000us-gaap_ProductWarrantyAccrual
Asbestos [Member]
Loss Contingencies [Line Items]
Pending claims, approximate number	2,150		2,150
Reimbursement from insurance carrier for settled claims			17,700,000
Increase for low end of range	11,700,000
Increase for high end of range	18,000,000
Incremental pre-tax provision	12,800,000
Range of possible loss, minimum	43,000,000		43,000,000
Range of possible loss, maximum	76,400,000		76,400,000
Asbestos [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Estimated legal costs	36,100,000		36,100,000
Asbestos [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Estimated legal costs	$ 55,400,000		$ 55,400,000

The estimated increase (or decrease) for the maximum amount of possible loss from the contingency during the period.

No definition available.

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- Definition

The estimated increase (or decrease) for the minimum amount of possible loss from the contingency during the period.

+ References

No definition available.

+ Details

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- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

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-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

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- Definition

The estimated maximum amount of possible loss from the contingency.

+ References

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- Definition

The estimated minimum amount of possible loss from the contingency.

+ References

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- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: 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(5))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

-Article 9

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-Name Accounting Standards Codification

-Topic 460

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-Paragraph 8

-Subparagraph ((c)(5))

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Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(2))

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- Definition

Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Paragraph 8

-Subparagraph ((c)(3))

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