Income Taxes (Reconciliation Of Federal And Provincial Income Tax Rate With Effective Income Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Income Tax Disclosure [Abstract]
Expected statutory rate	26.50%	27.25%	29.25%
Expected provision for income taxes	$ 47,226	$ 37,427	$ 39,819
Effect of foreign tax rate differences	(27,026)	(21,496)	(10,258)
Change in valuation allowance	2,082	15,536	(4,840)
Amortization of deferred charges	10,922	11,112	8,535
Effect of permanent differences	6,008	6,902	1,577
Effect of Canadian to US dollar functional currency election	0	(5,887)	0
Withholding taxes and other items	(2,093)	1,473	(5,177)
Impact of internal reorganization of subsidiaries and integration of acquisitions	(7,429)	(32,896)	(16,725)
Provision for income taxes	$ 29,690	$ 12,171	$ 12,931

Income Tax Effect of Canadian US Dollar Functional Currency Election

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Income Tax Reconciliation Amortization Of Deferred Charges

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Income Tax Reconciliation Effect of Permanent Difference

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Income Tax Reconciliation Impact Of Internal Reorganization Of Subsidiaries And legal Entity Reductions

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Income Tax Reconciliation Withholding Tax and Other Items

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to total foreign income tax expense or benefit. The foreign income tax expense or benefit difference represents the income tax expense or benefit at applicable domestic statutory income tax rates applied to foreign earnings or loss for the period versus the foreign income tax expense or benefit calculated by applying the appropriate foreign tax rates.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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