Forward Contracts with Notional Values (Detail) (Forward Contracts) In Thousands, unless otherwise specified	Mar. 31, 2014 Euro EUR (€)	Mar. 31, 2013 Euro EUR (€)	Mar. 31, 2014 British pound GBP (£)	Mar. 31, 2013 British pound GBP (£)	Mar. 31, 2014 Australian Dollar AUD	Mar. 31, 2014 Indian Rupees INR
Derivative [Line Items]
Notional amount	€ 21,900	€ 16,000	£ 26,500	£ 19,000	12,900	204,000

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant