Acquisition, Goodwill, And Other Intangible Assets (Summary Of Purchase Price Allocation) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Business Acquisition [Line Items]
Identifiable intangible assets	$ 88,049
Chordiant Software, Inc. [Member]
Business Acquisition [Line Items]
Cash	156,832
Stock options	3,519
Total purchase consideration	160,351
Cash	47,604
Accounts receivable, net of allowance	14,231
Other assets	2,659
Property and equipment	753
Deferred tax assets, net	26,927
Identifiable intangible assets	88,049
Goodwill	18,060	18,100
Accounts payable	(5,303)
Accrued liabilities	(12,053)
Deferred maintenance revenue	(17,863)
Long-term liabilities	(2,713)
Net assets acquired	$ 160,351