Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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Amount of debt hedged by interest rate derivatives.

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The total amount of the contingent obligations allowed to issue under letters of credit as of the reporting date

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Term Loan, Quarterly Principal Payment Percentage

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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-Name Accounting Standards Codification
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-SubTopic 30
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fixed interest rate related to the interest rate derivative.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Credit Arrangements - 2016 Credit Agreement (Details) - USD ($)		1 Months Ended		9 Months Ended	12 Months Ended
	Mar. 11, 2016	May 31, 2013	Sep. 30, 2011	Mar. 31, 2015	Jun. 30, 2016	Oct. 01, 2015	Jun. 30, 2015	Mar. 22, 2013
Debt Instrument [Line Items]
Long-term Debt					$ 504,400,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage				0.30%
Derivative, Fixed Interest Rate		0.73%				1.104%
Notional Amount					468,700,000		$ 468,500,000
2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	5 years
Debt Issuance Costs, Line of Credit Arrangements, Net					2,800,000
Debt Instrument, Unused Borrowing Capacity, Amount					$ 350,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage					0.25%
2016 Credit Agreement [Member] \| LIBOR Plus Margin [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					2.00%
2016 Credit Agreement [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					0.50%
2016 Credit Agreement [Member] \| One Month LIBOR Plus Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.00%
2016 Credit Agreement [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.00%
2016 Credit Agreement [Member] \| One Month LIBOR Plus Margin [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity								$ 300,000,000.0
Revolving Credit Facility [Member] \| 2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Principal amount of debt	$ 750,000,000.0
Line of Credit Facility, Current Borrowing Capacity	350,000,000
Letters of Credit, maximum issuance amount	10,000,000
Long-term Line of Credit	65,000,000
Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt								200,000,000.0
Term Loan [Member] \| 2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Principal amount of debt	300,000,000.0
Long-term Debt	$ 400,000,000				$ 397,500,000
Term Loan [Member] \| 2016 Credit Agreement [Member] \| Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Term Loan, Quarterly Principal Payment Percentage	0.625%
Term Loan [Member] \| 2016 Credit Agreement [Member] \| Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Term Loan, Quarterly Principal Payment Percentage	1.25%
Term Loan [Member] \| 2016 Credit Agreement [Member] \| Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Term Loan, Quarterly Principal Payment Percentage	1.875%
Term Loan [Member] \| 2016 Credit Agreement [Member] \| Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Term Loan, Quarterly Principal Payment Percentage	2.50%
Term Loan [Member] \| 2016 Credit Agreement [Member] \| Debt Instrument, Redemption, Period Five [Member]
Debt Instrument [Line Items]
Term Loan, Quarterly Principal Payment Percentage	72.50%
Swingline Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity								$ 75,000,000.0
Swingline Loan [Member] \| 2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 100,000,000
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Amount Of Debt Hedged By Interest Rate Derivatives		$ 100,000,000	$ 100,000,000	$ 100,000,000
Derivative, Fixed Interest Rate			1.30%
Designated as Hedging Instrument [Member] \| Interest Rate Contract [Member]
Debt Instrument [Line Items]
Notional Amount					$ 100,000,000