Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Apr. 01, 2012	Apr. 03, 2011	Dec. 31, 2011
Silicon Manufacturing Partners Pte Ltd [Member]
Related Party Transactions (Textual) [Abstract]
Company's equity interest in SMP joint venture	51.00%
Purchase of inventory from SMP	$ 12.2	$ 10.8
Amounts payable to SMP	14.7		5.0
Seagate Technology [Member]
Related Party Transactions (Textual) [Abstract]
Revenues from sales to Seagate	207.0	98.6
Accounts receivable from Seagate	$ 141.9		$ 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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+ 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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-Name Accounting Standards Codification

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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