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INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

Intangible assets:

		December 31,
		2015			2016
Original amounts:
Capitalized software costs		$	67,106		$	71,349
Customer relationships			31,936			53,370
Backlog and non-compete agreement			2,371			2,712
Acquired technology			5,075			12,375
			106,488			139,806
Accumulated amortization:
Capitalized software costs			53,096			57,286
Customer relationships			16,336			21,684
Backlog and non-compete agreement			2,039			2,260
Acquired technology			1,442			2,396
			72,913			83,626
Intangible assets, net		$	33,575		$	56,180

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The estimated future amortization expense of intangible assets as of December 31, 2016 is as follows:

2017		$	11,843
2018			9,844
2019			8,110
2020			6,691
2021			5,118
2022 and thereafter			14,574
		$	56,180

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- References

No definition available.

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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