Discontinued Operations Operating Results, Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Jul. 31, 2015	[3]	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2016	Jul. 31, 2015		Jul. 31, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net sales (1)							$ 0		$ 179,050
(Loss) earnings from discontinued operations (2)							(1,201)		6,715
Income tax expense							(288)		(3,299)
Loss on sale of discontinued operations (3)							(487)	[1]	(1,602)
Income tax benefit on sale of discontinued operations (4)							61	[2]	364
(Loss) earnings from discontinued operations, net of tax	$ 0		$ 0	$ 0	$ (1,915)	$ 0	(1,915)		$ 2,178
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]
Discontinued Operations, Accumulated Other Comprehensive Income Reclassified to Earnings							$ 34,697

[1] The first phase of the Die-Cut divestiture was completed in the fourth quarter of fiscal 2014. A loss on the sale was recorded in the three months ended July 31, 2014 and includes $3.9 million in liabilities retained as part of the divestiture agreement. The second and final closing of the Die-Cut divestiture was completed in the first quarter of fiscal 2015 and an additional loss on the sale was recorded in the three months ended October 31, 2014.

[2] The income tax benefit on the sale of discontinued operations in fiscal 2014 was significantly impacted by the release of a reserve for uncertain tax positions of $4.0 million, which was triggered as a result of the Thailand stock sale during the three months ended July 31, 2014. This was offset by $3.6 million in tax expense related to the gain on the sale of the Balkhausen assets. The Thailand stock sale and the Balkhausen asset sale were included in the first phase of the Die-Cut divestiture.

[3] ** In fiscal 2015, the loss from discontinued operations included a net loss on operations of $1,489 primarily related to professional fees associated with the divestiture and a $426 net loss on the sale of Die-Cut, recorded in the first quarter ended October 31, 2014.