Debt Instrument, Discount Rate, Stated Percentage

No definition available.

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- Definition

Debt Instrument, Number of Series

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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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 FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

+ References

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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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+ Details

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Balance Type:	debit
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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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-Publisher FASB
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+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

The amount of cash paid for interest during the period.

+ References

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- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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-Glossary Financing Activities
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Debt (Senior Notes) (Details)						1 Months Ended	3 Months Ended
Debt (Senior Notes) (Details)	Mar. 15, 2016 USD ($)	Feb. 15, 2016 USD ($)	Mar. 15, 2015 USD ($)	Feb. 15, 2015 USD ($)	Mar. 28, 2013 USD ($) series	Feb. 29, 2004 USD ($) series	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Debt Instrument [Line Items]
Number of series issued \| series					2	2
Net proceeds from issuance of debt							$ 249,625,000	$ 0
Senior Notes \| Senior Notes 2013
Debt Instrument [Line Items]
Aggregate principal amount					$ 700,000,000
Net proceeds from issuance of debt					698,093,000
Unamortized discount					1,907,000
Interest expenses and related amortization							5,943,000	5,746,000
Accrued interest							948,000	948,000
Interest payment	$ 11,375,000		$ 11,375,000
Senior Notes \| Senior Notes 2013, First Series
Debt Instrument [Line Items]
Aggregate principal amount					$ 350,000,000
Interest rate					2.50%
Discount rate					0.18%
Senior Notes \| Senior Notes 2013, Second Series
Debt Instrument [Line Items]
Aggregate principal amount					$ 350,000,000
Interest rate					4.00%
Discount rate					0.37%
Senior Notes \| Senior Notes 2004
Debt Instrument [Line Items]
Aggregate principal amount						$ 975,000,000
Net proceeds from issuance of debt						971,537,000
Unamortized discount						3,463,000
Interest expenses and related amortization							8,057,000	8,032,000
Accrued interest							$ 4,008,000	$ 4,008,000
Interest payment		$ 16,031,000		$ 16,031,000
Senior Notes \| Senior Notes 2004, First Series
Debt Instrument [Line Items]
Aggregate principal amount						$ 500,000,000
Interest rate						5.63%
Discount rate						0.11%
Senior Notes \| Senior Notes 2004, Second Series
Debt Instrument [Line Items]
Aggregate principal amount						$ 475,000,000
Interest rate						6.75%
Discount rate						0.61%