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Acquisitions (2015 Acquisitions) (Narrative) (Details) - USD ($) $ in Thousands						12 Months Ended
	Jul. 17, 2015	Jun. 16, 2015	Apr. 02, 2015	Feb. 09, 2015	Dec. 17, 2014	Dec. 31, 2015
Business Acquisition [Line Items]
Acquisition date						Dec. 17, 2014
Consideration paid in cash					$ 54,552
Cimatron [Member]
Business Acquisition [Line Items]
Acquisition date						Feb. 09, 2015
Acquired ownership percentage				100.00%
Consideration paid in cash				$ 77,984
Easyway [Member]
Business Acquisition [Line Items]
Acquisition date						Apr. 02, 2015
Acquired ownership percentage			65.00%			65.00%
Consideration paid in cash			$ 11,265
STEAMtrax [Member]
Business Acquisition [Line Items]
Acquisition date						Jun. 16, 2015
Consideration paid in cash		$ 2,550
Noquo [Member]
Business Acquisition [Line Items]
Acquisition date						Jun. 17, 2015
Fair value of consideration paid	$ 651

X

- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
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-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e845-128460

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6516133

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