Fair Value Measurements Fair Value Measurements (Detail 1) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
ASSETS
Cash Equivalents, at Carrying Value	$ 13,600,000	$ 13,619,000
Foreign Currency Contract, Asset, Fair Value Disclosure	400,000	500,000
Foreign currency forward contracts not designated as hedging instrument	400,000	500,000
Liabilities [Abstract]
Interest rate swap agreements	8,200,000	9,200,000
Foreign currency forward contracts designated as cash flow hedge	421,000	0
Foreign currency forward contracts not designated as hedging instrument	300,000	500,000
Liabilities, Fair Value Disclosure	8,900,000	9,700,000
Level 1
Liabilities [Abstract]
Foreign currency forward contracts designated as cash flow hedge	0	0
Level 2
Liabilities [Abstract]
Foreign currency forward contracts designated as cash flow hedge	421,000	0
Level 3
Liabilities [Abstract]
Foreign currency forward contracts designated as cash flow hedge	0	0
Fair Value, Measurements, Recurring
ASSETS
Cash Equivalents, at Carrying Value	13,636,000	13,619,000
Foreign currency forward contracts not designated as hedging instrument	448,000	545,000
Assets, Fair Value Disclosure	14,084,000	14,164,000
Liabilities [Abstract]
Interest rate swap agreements	8,172,000	9,175,000
Foreign currency forward contracts not designated as hedging instrument	280,000	480,000
Liabilities, Fair Value Disclosure	8,873,000	9,655,000
Fair Value, Measurements, Recurring \| Level 1
ASSETS
Cash Equivalents, at Carrying Value	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Assets, Fair Value Disclosure	0	0
Liabilities [Abstract]
Interest rate swap agreements	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring \| Level 2
ASSETS
Cash Equivalents, at Carrying Value	13,636,000	13,619,000
Foreign currency forward contracts not designated as hedging instrument	448,000	545,000
Assets, Fair Value Disclosure	14,084,000	14,164,000
Liabilities [Abstract]
Interest rate swap agreements	8,172,000	9,175,000
Foreign currency forward contracts not designated as hedging instrument	280,000	480,000
Liabilities, Fair Value Disclosure	8,873,000	9,655,000
Fair Value, Measurements, Recurring \| Level 3
ASSETS
Cash Equivalents, at Carrying Value	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Assets, Fair Value Disclosure	0	0
Liabilities [Abstract]
Interest rate swap agreements	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Liabilities, Fair Value Disclosure	$ 0	$ 0

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This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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- Definition

Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 8, 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

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- Definition

Fair value as of the balance sheet date of all foreign currency derivatives designated as cash flow hedging instruments.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(b),(c)(1)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date.

+ References

No definition available.

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- Definition

Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 17

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

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Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

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- Definition

Fair value as of the balance sheet date of all interest rate derivatives designated as cash flow hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

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-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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- Definition

This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

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