Guarantor Subsidiaries And Non-Guarantor Subsidiaries (Supplemental Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jan. 31, 2015	Jan. 31, 2014
Net cash (used in) provided by operating activities	$ 274,185	$ 174,621
Capital expenditures	(74,020)	(93,771)
Acquisition of businesses	(182,500)	0
Other investing activities, net	704	149
Net cash used in investing activities	(255,816)	(93,622)
Proceeds from Issuance of Other Long-term Debt	243,000	0
Repayments of Long-term Debt	(243,536)us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt
Dividends paid	(30,141)us-gaap_PaymentsOfDividends	(14,986)us-gaap_PaymentsOfDividends
Other financing activities, net	4,593	621
Advances	0	0
Net cash provided by (used in) financing activities	(26,084)	(14,365)
Effect of exchange rate changes on cash and cash equivalents	(113)	38
Net increase (decrease) in cash and cash equivalents	(7,828)	66,672
Beginning of period	44,406	138,604
End of period	36,578	205,276
Parent Company [Member]
Net cash (used in) provided by operating activities	30,244	(19,616)
Capital expenditures	0	0
Acquisition of businesses	0
Other investing activities, net	0	0
Net cash used in investing activities	0	0
Proceeds from Issuance of Other Long-term Debt	0
Repayments of Long-term Debt	0
Dividends paid	(30,141)	(14,986)
Other financing activities, net	3,255	3,390
Advances	(3,358)	31,212
Net cash provided by (used in) financing activities	(30,244)	19,616
Effect of exchange rate changes on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Beginning of period	0	0
End of period	0	0
100% Owned Guarantor Subsidiaries [Member]
Net cash (used in) provided by operating activities	242,353	193,841
Capital expenditures	(73,424)	(93,095)
Acquisition of businesses	(182,500)
Other investing activities, net	693	142
Net cash used in investing activities	(255,231)	(92,953)
Proceeds from Issuance of Other Long-term Debt	243,000
Repayments of Long-term Debt	(243,305)
Dividends paid	0	0
Other financing activities, net	1,132	(3,265)
Advances	3,358	(31,212)
Net cash provided by (used in) financing activities	4,185	(34,477)
Effect of exchange rate changes on cash and cash equivalents	234	(18)
Net increase (decrease) in cash and cash equivalents	(8,459)	66,393
Beginning of period	35,070	130,970
End of period	26,611	197,363
Other Subsidiaries [Member]
Net cash (used in) provided by operating activities	1,588	396
Capital expenditures	(596)	(676)
Acquisition of businesses	0
Other investing activities, net	11	7
Net cash used in investing activities	(585)	(669)
Proceeds from Issuance of Other Long-term Debt	0
Repayments of Long-term Debt	(231)
Dividends paid	0	0
Other financing activities, net	206	496
Advances	0	0
Net cash provided by (used in) financing activities	(25)	496
Effect of exchange rate changes on cash and cash equivalents	(347)	56
Net increase (decrease) in cash and cash equivalents	631	279
Beginning of period	9,336	7,634
End of period	$ 9,967	$ 7,913

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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