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

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Debt Debt - Summary of Short-Term Debt (Detail II)	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Notes Due 2016
Short-term Debt [Line Items]
Interest rate	1.75%		1.75%
1.450% Notes due May 15, 2017
Short-term Debt [Line Items]
Interest rate	1.45%	1.45%