Consideration Paid for Adeptra and Amounts for Assets Acquired and Liabilities Assumed (Detail) (Adeptra Ltd., USD $) In Thousands, unless otherwise specified	Sep. 07, 2012
Business Acquisition [Line Items]
Cash	$ 113,027
Acquisition-related costs (included in the company's consolidated statement of income for the year ended September 30, 2012 as a component of restructuring and acquisition-related expense)	984
Cash and cash equivalents	7,648
Accounts receivable, net	8,939
Prepaid expenses and other current assets	1,380
Property and equipment, net	1,428
Intangible assets
Other assets	100
Accounts payable	(4,350)
Accrued compensation and employee benefits	(2,093)
Other accrued liabilities	(3,128)
Deferred revenue	(357)
Deferred income taxes	(18)
Short-term loan	(5,466)
Total identifiable net assets	40,783
Goodwill	72,244
Total	113,027
Completed technology
Intangible assets
Intangible assets	24,200
Customer relationships
Intangible assets
Intangible assets	11,990
Trade names
Intangible assets
Intangible assets	$ 510