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Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2011
Subsequent Events [Abstract]
Subsequent Events	(11) Subsequent Events On October 14, 2011, we acquired all of the capital stock of Windsor Management Group, L.L.C. ("Windsor") for a cash purchase price of $16.3 million, net of cash acquired of $7.2 million. Windsor provides an integrated suite of financial and human capital management solutions to the K-12 education market, primarily in the Southwest. We have not finalized the allocation of the purchase price.