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WARRANTY COSTS AND OTHER CONTINGENCIES - Analysis of warranty accruals (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at beginning of period	$ 3,410	$ 2,522
Less: Payments made during the period	(1,039)	(1,232)
Add: Warranty provision for the period	1,918	1,903
Changes to warranty provision for prior periods	(66)	222
Balance at September 30	$ 4,223	$ 3,415

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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))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



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-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

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-Section 50

-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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates).

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-Publisher FASB

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-Topic 460

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

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