CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2012	Mar. 31, 2012	Apr. 02, 2011
Convertible preference shares, no par value
Convertible preference shares, issued			10,163,920
Convertible preference shares, outstanding			10,163,920
Ordinary shares, no par value
Ordinary shares, shares authorized	650,000,000	650,000,000	650,000,000
Ordinary shares, shares issued	193,226,091	192,731,390	140,554,377
Ordinary shares, shares outstanding	193,226,091	192,731,390	140,554,377

Issuance value per share of no-par value common stock; generally not indicative of the fair market value per share.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Issuance value per share of no-par value, nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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