Equity Compensation (Summary of Market Stock Units Expected to Vest) (Details) (Market Stock Unit (MSUs) [Member], USD $) Share data in Thousands, unless otherwise specified	12 Months Ended
Mar. 28, 2015
Market Stock Unit (MSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Vested and expected to vest	35
Weighted Average Fair Value, Vested and expected to vest	$ 22.00
Weighted Average Remaining Contractual Term, Vested and expected to vest	2 years 6 months 4 days

Weighted average remaining contractual term for fully vested and expected to vest restricted stock units, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	crus_WeightedAverageRemainingContractualTermVestedAndExpectedToVest
Namespace Prefix:	crus_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration