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SUBSEQUENT EVENTS (Details) (Preferred stock, USD $)	0 Months Ended
	Jul. 08, 2013	Apr. 05, 2013	Jan. 11, 2013
Preferred stock
Subsequent events
Cash dividend declared per share (in dollars per share)	$ 0.15	$ 0.15	$ 0.15

X

- Definition

Aggregate dividends declared during the period for each share of preferred stock outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration