Fixed Assets (Schedule Of Fixed Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment
Fixed assets, at cost	272,177us-gaap_PropertyPlantAndEquipmentGross	$ 241,616us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization	125,389	115,634
Fixed assets, net	146,788us-gaap_PropertyPlantAndEquipmentNet	125,982us-gaap_PropertyPlantAndEquipmentNet
Land [Member]
Property, Plant and Equipment
Fixed assets, at cost	10,792	12,018
Buildings And Improvements [Member]
Property, Plant and Equipment
Fixed assets, at cost	85,002	76,577
Leasehold Improvements [Member]
Property, Plant and Equipment
Fixed assets, at cost	8,114	2,044
Machinery And Equipment [Member]
Property, Plant and Equipment
Fixed assets, at cost	138,025	130,461
Furniture And Fixtures [Member]
Property, Plant and Equipment
Fixed assets, at cost	20,729	17,745
Construction In Progress [Member]
Property, Plant and Equipment
Fixed assets, at cost	9,515	$ 2,771
Minimum \| Buildings And Improvements [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	10 years
Minimum \| Leasehold Improvements [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	3 years
Minimum \| Machinery And Equipment [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	3 years
Minimum \| Furniture And Fixtures [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	3 years
Maximum \| Buildings And Improvements [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	40 years
Maximum \| Leasehold Improvements [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	10 years
Maximum \| Machinery And Equipment [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	15 years
Maximum \| Furniture And Fixtures [Member]
Property, Plant and Equipment
Estimated Useful Life in Years	8 years

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.14)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 14

-Article 5

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

-Subparagraph a

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 8

-Article 7

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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