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

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

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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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ 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)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2016	Aug. 16, 2016	Jan. 14, 2016
Senior Notes [Member]
Debt Instrument [Line Items]
Fixed annual rate of interest	8.00%
Debt instrument, maturity date	Jan. 30, 2020
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.875%
Debt instrument, maturity date	Mar. 15, 2019
4% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.00%		4.00%
Debt instrument, maturity date	Feb. 01, 2031
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.75%	3.75%
Debt instrument, maturity date	Sep. 01, 2036