ACQUISITIONS (Details) (dynaTrace [Member], USD $)	1 Months Ended
Jul. 01, 2011
Business Acquisition [Line Items]
Effective date of acquisition	Jul. 01, 2011
Purchase price of acquisition	$ 255,800,000
Direct acquisition cost	300,000
Goodwill recognized on acquisition	210,900,000
Borrowings under credit facility to fund the dynaTrace acquisition	129,500,000
Estimated fair value of intangible assets subject to amortization	42,000,000
Developed Technology Rights [Member]
Business Acquisition [Line Items]
Estimated fair value of intangible assets subject to amortization	28,500,000
Useful Life (in Years)	5 years
Amortization Method	Straight Line
Trade Names [Member]
Business Acquisition [Line Items]
Estimated fair value of intangible assets subject to amortization	9,800,000
Useful Life (in Years)	3 years
Amortization Method	Straight Line
Customer Relationships [Member]
Business Acquisition [Line Items]
Estimated fair value of intangible assets subject to amortization	$ 3,700,000
Useful Life (in Years)	10 years
Amortization Method	Straight Line

Borrowings under the Company's credit facility to fund the dynaTrace acquisition.

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The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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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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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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

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The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amortization method of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company. The straight-line method is the preferred amortization method, unless another method better reflects the pattern in which the asset is consumed.

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