Summary of Accounting Policies (Intangible Assets Future Amortization Expense) (Details) (USD $) In Thousands	12 Months Ended
Mar. 31, 2011
Summary of Accounting Policies
2012	$ 44,986
2013	31,234
2014	21,173
2015	11,400
2016	5,669
Thereafter	5,414
Total amortization expense	$ 119,876

The current amount of amortization expense to be recognized subsequent to Year 5 following the balance sheet date.

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Namespace Prefix:	flex
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The aggregate estimated amortization expense for each of the five succeeding fiscal years for intangible assets subject to amortization.