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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Event Subsequent Event (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 08, 2019	Feb. 28, 2019	Feb. 28, 2018	Nov. 30, 2018
Subsequent Event [Line Items]
Repayment of senior notes		$ 230,000	$ 0
4.75% Senior notes due May 15, 2019 [Member] \| Senior Notes [Member]
Subsequent Event [Line Items]
Senior notes, rate		4.75%		4.75%
4.75% Senior notes due May 15, 2019 [Member] \| Senior Notes [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of senior notes	$ 400,000
Senior notes, rate	4.75%