Subsequent Events	6 Months Ended
Oct. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	10. Subsequent Events On November 5, 2012, the Company acquired Longboard Media, Inc., or Longboard Media, a full service media management network for retailers, shopping publishers and advertisers. The Company paid approximately $26.9 million in cash and issued approximately 0.5 million shares of common stock for the acquisition. At the Company’s share price on November 2, 2012, the value of the transaction is approximately $32.7 million. In the event that Longboard Media achieves certain goals with respect to its performance through December 31, 2013, the equityholders of Longboard Media may receive up to an additional $11.0 million in cash.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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