SUBSEQUENT EVENT (Details) (Subsequent events, 4.625% Notes due July 15, 2013, USD $) In Millions, unless otherwise specified	1 Months Ended
Jul. 31, 2013
Subsequent events \| 4.625% Notes due July 15, 2013
Subsequent Events
Principal amount of debt repaid	$ 300.0
Interest rate of notes payable (as a percent)	4.625%
Accrued interest repaid	$ 6.9

The amount of cash paid for interest during the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

Name:	us-gaap_InterestPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration