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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	(12) Subsequent Events In April 2012, we acquired all of the capital stock of Computer Software Associates, Inc. (“CSA”) for a cash purchase price of $9.8 million. CSA is a reseller of our Infinite Visions school enterprise solution, and sells proprietary CSA tax and recording solutions to county governments.