Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified |
12 Months Ended | ||||||||||
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Sep. 30, 2010 |
Sep. 30, 2011
Carrying Value
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Sep. 30, 2010
Carrying Value
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Sep. 30, 2011
Level 1
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Sep. 30, 2010
Level 1
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Sep. 30, 2011
Level 2
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Sep. 30, 2010
Level 2
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Sep. 30, 2011
Level 3
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Sep. 30, 2010
Level 3
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Sep. 30, 2011
$150 senior unsecured notes, due July 15, 2020, net of discount
Year
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Jul. 09, 2010
$150 senior unsecured notes, due July 15, 2020, net of discount
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| Financial assets and liabilities at carrying value and fair value | |||||||||||
| Long-term debt, principal | $ 150 | ||||||||||
| Assets: | |||||||||||
| Cash and cash equivalents | 115.5 | 98.4 | 115.5 | 98.4 | |||||||
| Auction rate securities | 11.9 | 11.9 | 11.9 | ||||||||
| Forethought Note | 144.8 | 127.0 | |||||||||
| Equity investments | 3.6 | 3.0 | 2.6 | 1.0 | 3.0 | ||||||
| Investments in rabbi trust | 5.2 | 5.7 | 5.2 | 5.7 | |||||||
| Derivative instruments | 0.4 | 0.4 | |||||||||
| Carrying amount of private equity limited partnerships for which fair value is not readily available | 13.8 | 15.2 | |||||||||
| Liabilities: | |||||||||||
| Revolving credit facility | 283.0 | 255.0 | 277.9 | 241.8 | |||||||
| $150 senior unsecured notes | 148.5 | 148.4 | 157.6 | 158.0 | |||||||
| Derivative instruments | $ 0.1 | $ 0.1 | |||||||||
| Stated interest rate (as a percent) | 5.50% | ||||||||||
| Term of debt issued (in years) | 10 |
| X | ||||||||||
- Definition Represents the term of debt issued.
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- Details
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- Definition Equity securities categorized neither as held-to-maturity nor trading which are intended be sold more than one year from the balance sheet date or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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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- Definition This item represents a financial instrument (as defined) for which it is not practicable to estimate fair value. Such disclosure may be for an individual financial instrument or a class of financial instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Fair value of lines of credit at the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents notes payable as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money at a future date(s). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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