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Business Segments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 30, 2013 Segment	Apr. 30, 2012 Futurestep	Apr. 30, 2011 Futurestep	Apr. 30, 2012 Executive Recruitment	Apr. 30, 2011 Executive Recruitment
Segment Reporting Information [Line Items]
Increase (decrease) in operating income		$ 2.2	$ 2.0	$ (2.2)	$ (2.0)
Number of business segments	3

X

- Definition

Change In Business Segment Operating Income

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration