Related Party Transactions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Silicon Manufacturing Partners Pte Ltd. [Member]
Related Party Transaction [Line Items]
Company's equity interest in SMP joint venture	51.00%
Purchase of inventory from SMP	$ 46.0	$ 49.0	$ 44.0
Amounts payable to SMP	9.2	5.0
Seagate Technology [Member]
Related Party Transaction [Line Items]
Revenues from sales to Seagate	768.2	520.5	355.5
Accounts receivable from Seagate	$ 94.0	$ 90.3

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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-Publisher FASB

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+ Details

- Definition

Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

+ References

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+ Details

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References+ Details

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References+ Details