Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Description of a feature that permits the issuer of the debt to repay or convert it before the stated maturity date (early retirement date). The description may include such items as the call price, the period that the issuer can call the debt, including the earliest call date, and other significant terms of the call feature, which may include the debt holders' ability to convert the debt to equity if the call option is exercised and contingent events that trigger the issuer's ability to call the debt.

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Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

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

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Description of a fee associated with the debt instrument, including a commitment fee on unborrowed portions of a lender's total contractual commitment.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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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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Weighted average interest rate of debt outstanding.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Debt (Details) (USD $)	12 Months Ended			1 Months Ended
Debt (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2015	Jun. 30, 2014	Jun. 30, 2013
Debt [Line Items]
Payments on debt	$ 239,776,000us-gaap_RepaymentsOfLongTermDebt	$ 886,644,000us-gaap_RepaymentsOfLongTermDebt	$ 32,107,000us-gaap_RepaymentsOfLongTermDebt
Notes payable and debt	225,243,000us-gaap_DebtCurrent	133,346,000us-gaap_DebtCurrent
Long-term debt	1,240,000,000us-gaap_LongTermDebtNoncurrent	1,190,000,000us-gaap_LongTermDebtNoncurrent
Total debt	1,465,243,000us-gaap_DebtAndCapitalLeaseObligations	1,323,346,000us-gaap_DebtAndCapitalLeaseObligations
Senior unsecured notes - Series A [Member]
Debt [Line Items]
Stated interest rate on debt instrument	3.75%
Payments on debt				100,000,000
Notes payable and debt	100,000,000
Long-term debt		100,000,000
Senior unsecured notes - Series B [Member]
Debt [Line Items]
Stated interest rate on debt instrument	5.00%
Long-term debt	100,000,000	100,000,000
Senior unsecured notes - Series C [Member]
Debt [Line Items]
Stated interest rate on debt instrument	2.50%
Long-term debt	50,000,000	50,000,000
Senior unsecured notes - Series D [Member]
Debt [Line Items]
Stated interest rate on debt instrument	3.22%
Long-term debt	100,000,000	100,000,000
Senior unsecured notes - Series E [Member]
Debt [Line Items]
Stated interest rate on debt instrument	3.97%
Long-term debt	50,000,000	50,000,000
Senior unsecured notes - Series F [Member]
Debt [Line Items]
Face value of debt					100,000,000
Debt term					7 years
Stated interest rate on debt instrument	3.40%
Long-term debt	100,000,000
Senior unsecured notes - Series G [Member]
Debt [Line Items]
Face value of debt					50,000,000
Debt term					10 years
Stated interest rate on debt instrument	3.92%
Long-term debt	50,000,000
Senior unsecured notes - Series H [Member]
Debt [Line Items]
Face value of debt					50,000,000
Debt term					10 years
Interest rate terms on debt	*Series H senior unsecured notes bear interest at 3 month LIBOR for that floating rate interest period plus 1.25%.
Long-term debt	50,000,000
Foreign subsidiary lines of credit [Member]
Debt [Line Items]
Notes payable and debt	243,000	8,346,000
Weighted-average interest rate	1.48%	2.00%
Line of credit maximum borrowing capacity	88,000,000	87,000,000
Unsecured debt [Member]
Debt [Line Items]
Call feature on debt instrument	The Company may prepay all or some of the senior unsecured notes at any time in an amount not less than 10% of the aggregate principal amount outstanding, plus the applicable make-whole amount or prepayment premium for Series H senior unsecured notes. In the event of a change in control of the Company (as defined in the note purchase agreement), the Company may be required to prepay the senior unsecured notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest.
Debt covenant description	These senior unsecured notes require that the Company comply with an interest coverage ratio test of not less than 3.50:1 for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter.
Long-term debt	600,000,000	400,000,000
Credit Agreement dated June 2013 [Member]
Debt [Line Items]
Interest rate terms on debt	The interest rates applicable to the 2013 Credit Agreement are, at the Company’s option, equal to either the alternate base rate calculated daily (which is a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b) the federal funds effective rate in effect on such day plus 1/2% per annum, or (c) the adjusted LIBO rate on such day (or if such day is not a business day, the immediately preceding business day) for a deposit in U.S. dollars with a maturity of one month plus 1% per annum) or the applicable 1, 2, 3 or 6 month adjusted LIBO rate, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 to 12.5 basis points for alternate base rate loans and between 75 basis points and 112.5 basis points for adjusted LIBO rate loans.
Debt facility fee	The facility fee on the 2013 Credit Agreement ranges between 12.5 basis points and 25 basis points.
Debt covenant description	The 2013 Credit Agreement requires that the Company comply with an interest coverage ratio test of not less than 3.50:1 as of the end of any fiscal quarter for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter.
Long-term debt	740,000,000	790,000,000
Unused borrowing capacity	533,000,000	483,000,000
Credit Agreement dated June 2013 [Member] \| Term loan facility [Member]
Debt [Line Items]
Face value of debt						300,000,000
Credit Agreement dated June 2013 [Member] \| Revolving facilities [Member]
Debt [Line Items]
Face value of debt						1,100,000,000
Notes payable and debt	125,000,000	125,000,000
Long-term debt	$ 440,000,000
Credit agreement and unsecured debt [Member]
Debt [Line Items]
Weighted-average interest rate	2.31%	1.94%