Discontinued Operations - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
Apr. 30, 2008	Sep. 30, 2009
Significant Acquisitions and Disposals [Line Items]
Proceeds from sale of Insurance Bill Review business unit	$ 16,000,000
Additional charge, unfavorable final working capital adjustment		$ (363,000)

This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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+ Details