Estimated Fair Values of Assets Acquired and Liabilities Assumed for the Auto-Bake Acquisition (Detail) (Auto-Bake, USD $) In Thousands, unless otherwise specified	Aug. 01, 2011
Business Acquisition [Line Items]
Cash	$ 110
Current assets	3,181
Property, plant and equipment	477
Goodwill	18,199
Other intangibles	4,058
Other assets	325
Current liabilities	(2,498)
Long-term deferred tax liability	(1,218)
Net assets acquired and liabilities assumed	22,634
as initially reported
Business Acquisition [Line Items]
Cash	110
Current assets	3,209
Property, plant and equipment	477
Goodwill	16,259
Other intangibles	6,784
Other assets	336
Current liabilities	(2,506)
Long-term deferred tax liability	(2,035)
Net assets acquired and liabilities assumed	22,634
Measurement Period Adjustments
Business Acquisition [Line Items]
Current assets	(28)
Goodwill	1,940
Other intangibles	(2,726)
Other assets	(11)
Current liabilities	8
Long-term deferred tax liability	$ 817