Maximum consolidated leverage ratio permitted under debt agreement.

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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- Details

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- Definition

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.

+ References

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current portion 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

+ Details

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13, 16

-Article 9

+ Details

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Debt (Narrative) (Details) (USD $)	6 Months Ended		6 Months Ended			6 Months Ended
Debt (Narrative) (Details) (USD $)	Jun. 30, 2014 item	Dec. 31, 2013	Jun. 30, 2014 Maximum [Member]	Jun. 30, 2014 Minimum [Member]	May 31, 2013 Outdated Unsecured Short Term Revolving Credit Facility [Member]	Jun. 30, 2014 Amended And Restated Unsecured Short Term Revolving Credit Facility [Member]	Jun. 30, 2014 Minimum Credit Spread On LIBOR Or CDOR Borrowings [Member]	Jun. 30, 2014 Maximum Credit Spread On LIBOR Or CDOR Borrowings [Member]	Jun. 30, 2014 Maximum Credit Spread On Prime Rate Borrowings [Member]	Jun. 30, 2014 Senior Notes [Member] item	Jul. 21, 2014 Senior Notes [Member]	Dec. 31, 2013 Senior Notes [Member]	Jul. 21, 2014 Series A Senior Note [Member]	Dec. 31, 2013 Series A Senior Note [Member]	Jul. 21, 2014 Series B Senior Note [Member]	Dec. 31, 2013 Series B Senior Note [Member]
Line of Credit Facility [Line Items]
Borrowing capacity					$ 450,000,000	$ 700,000,000
Credit Facility maturity date						Jun. 18, 2019
Outstanding Credit Facility balance	384,000,000	277,000,000
Credit Facility weighted average interest rates on outstanding balance	1.40%	1.60%
Reduction of Credit Facility Availability	1,000,000
Credit spread during period							0.875%	1.375%	0.375%
Credit Facility borrowings hedged	80,000,000
Commitment fees			0.35%	0.15%
Consolidated leverage ratio under credit facility, maximum	3.5									3.5
Notes Payable											$ 125,000,000	$ 150,000,000	$ 50,000,000	$ 75,000,000	$ 75,000,000	$ 75,000,000
Debt Instrument, Interest Rate, Stated Percentage													3.32%	3.94%	3.76%	4.04%
Minimum Allowable Prepayment under Senior Notes										5.00%