Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jan. 31, 2014 agreement
Defined Benefit Plan Disclosure [Line Items]
Number of U.S. plans	2
Employees Hired On Or After August 1, 2013 Will Be Eligible For Retirement Contribution [Member]
Defined Benefit Plan Disclosure [Line Items]
Annual Company retirement contribution in addition to 401 (k) match, percent	3.00%
Employees Hired Prior To August 1, 2013 Will Be Eligible For Retirement Contribution, Effective August 1, 2016 [Member]
Defined Benefit Plan Disclosure [Line Items]
Annual Company retirement contribution in addition to 401 (k) match, percent	3.00%
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions	$ 0.4
Estimated future contributions to pension plans	7.9
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions	1.9
Additional future contribution towards pension plans	$ 3.7