Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011
Significant Accounting Policies [Line Items]
Non-current deferred income taxes	$ 571,039,000	$ 214,546,000
Sales level from major customers	3.00%
Divestiture
Significant Accounting Policies [Line Items]
Gain on Divestiture	$ 30,000,000
Building
Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	40
Land Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives (in years)	15
Machinery and Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives, lower limit (in years)	7
Estimated useful lives, upper limit (in years)	10
Vehicles and Office Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives, lower limit (in years)	3
Estimated useful lives, upper limit (in years)	8
Industrial
Significant Accounting Policies [Line Items]
Number of countries that the Industrial International operations provide Parker products and services to	45

The noncurrent portion as of the balance sheet date of the aggregate carrying amount of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after the valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, is classified according to the expected reversal date of the temporary difference.

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The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement.

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