Business Combinations and Subsequent Deconsolidation of Spigit (Details) Investment in Mindjet (USD $)	Sep. 30, 2013	Dec. 31, 2012
Noncontrolling Interest [Line Items]
Carrying Value	$ 76,627,000	$ 50,524,000
Mindjet
Noncontrolling Interest [Line Items]
Investment in common stock equity method, Carrying Value	9,173,000
Investment in common stock, equity method, Voting Interest	15.20%
Investment in preferred stock, cost method, Carrying Value	17,210,000
Investment in preferred stock, cost method, Voting Interest	13.60%
Carrying Value	$ 26,383,000
Voting interest Percentage	28.80%

This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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+ Details

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References+ Details