Warrantry Reserve (Schedule of Changes in Warranty Accrual) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Nature of Operations and Summary of Significant Accounting Policies [Abstract]
Accrued warranty reserve, beginning of period	$ 1,546us-gaap_StandardProductWarrantyAccrual	$ 845us-gaap_StandardProductWarrantyAccrual	$ 1,150us-gaap_StandardProductWarrantyAccrual	$ 679us-gaap_StandardProductWarrantyAccrual	$ 679us-gaap_StandardProductWarrantyAccrual	$ 474us-gaap_StandardProductWarrantyAccrual
Warranty reserves assumed in business combinations	200		341
Warranty expense provisions	715	195	1,354	582	1,112	630
Payments	(347)	(204)	(731)	(425)	(641)	(425)
Accrued warranty reserve, end of period	$ 2,114us-gaap_StandardProductWarrantyAccrual	$ 836us-gaap_StandardProductWarrantyAccrual	$ 2,114us-gaap_StandardProductWarrantyAccrual	$ 836us-gaap_StandardProductWarrantyAccrual	$ 1,150us-gaap_StandardProductWarrantyAccrual	$ 679us-gaap_StandardProductWarrantyAccrual

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph (c)(1),(c)(5)

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

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- Definition

Liability for a standard product warranty acquired in a business acquisition. Does not include any liability for an extended warranty acquired in a business acquisition.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

+ Details

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- Definition

Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(2))

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

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- Definition

Represents the aggregate increase in the liability for accruals related to standard product warranties issued during the reporting period. Does not include any increase in the liability for accruals related to extended product warranties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(3))

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

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