Acquisitions and Divestitures - Schedule of Purchase Price Allocation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2013
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ (12,904)
Accounts receivable — net	21,178
Total inventories	16,788
Prepaid expenses and other current assets	4,232
Goodwill	169,425
Other intangible assets	109,300
Other assets	483
Property, plant and equipment	18,015
Accounts payable	(9,921)
Wages and amounts withheld from employees	(4,234)
Business Combination, Taxes other than income tax	600
Liabilities assumed	(57)
Other current liabilities	(5,245)
Other long-term liabilities	(18,207)
Cost of acquired entity	314,061
Fair value of total consideration transferred	$ 301,157