Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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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.

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Amount of liability recognized arising from contingent consideration in a business combination.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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ACQUISITION AND INVESTMENT IN EQUITY INVESTEE (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 28, 2017	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Acquisition [Abstract]
Cash paid for acquisition		$ 0	$ 3,300
Goodwill		$ 114,954		$ 114,954
Vertical Eden, LLC [Member]
Acquisition [Abstract]
Percentage of entity acquired			70.00%
Cash paid for acquisition			$ 3,300
Contingent consideration			1,500
Intangible assets			4,400
Goodwill			2,500
Non-controlling interest			$ 2,100
Vertical Eden, LLC [Member] \| Minimum [Member]
Acquisition [Abstract]
Useful life			3 years
Vertical Eden, LLC [Member] \| Maximum [Member]
Acquisition [Abstract]
Useful life			7 years
Treviso, LLC [Member]
Acquisition [Abstract]
Percentage of entity acquired	35.00%
Purchase price	$ 21,000
Possible earn out	1,000
Cash paid for acquisition	12,600
Value of shares issued	$ 8,400
Number of shares issued (in shares	169,560
Share price (in dollars per share)	$ 49.54