Allocation of Purchase Price to The Assets Acquired Based on Their Related Fair Values (Detail) (Thoughtcorp Inc, USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Thoughtcorp Inc
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Cash and cash equivalents	$ 1,111
Trade receivables and other current assets	2,484
Property and equipment	92
Acquired intangible assets	5,296
Goodwill	4,383
Total assets acquired	13,366
Accounts payable and accrued expenses	461
Assumed shareholder and director loans	1,290
Deferred revenue and other liabilities	411
Total liabilities assumed	2,162
Net assets acquired	$ 11,204