Acquisitions (Details 1) (Denali Software Inc [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2010
Business Acquisition, Purchase Price Allocation [Abstract]
Current assets	$ 59,398
Property, plant and equipment	347
Other assets	283
Acquired intangibles
Goodwill	152,172
Total assets acquired	381,000
Current liabilities	(17,042)
Long-term deferred tax liabilities (Note 6)	(67,153)
Net assets acquired	296,805
Existing technology (six to nine-year weighted-average useful lives) [Member]
Acquired intangibles
Amortizable Intangible Assets	65,700
Agreements and relationships (three to twelve-year weighted-average useful lives) [Member]
Acquired intangibles
Amortizable Intangible Assets	98,800
Tradenames / trademarks / patents (ten-year weighted-average useful life) [Member]
Acquired intangibles
Amortizable Intangible Assets	$ 4,300

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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The amount of acquisition cost of a business combination allocated to assets acquired.

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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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The amount of acquisition cost of a business combination allocated to current assets.

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The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity.

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Amount of deferred tax assets or liabilities for the differences between the values assigned and the tax bases of assets and liabilities in a business combination, net of any valuation allowance for deferred tax assets.

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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 amount of acquisition cost of a business combination allocated to noncurrent assets of the acquired entity, except for property plant and equipment, intangible assets, and goodwill.

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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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