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DIVIDENDS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended			6 Months Ended
	Jun. 08, 2016	Mar. 16, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Jun. 30, 2016	Jun. 30, 2015
Dividends per Share [Abstract]
Payment of cash dividends						$ 39,698	$ 41,179
Dividend Declared 2016-Q1 [Member]
Dividends per Share [Abstract]
Dividend payable, date declared						2016-01
Dividend payable per share (in dollars per share)					$ 0.355
Payment of cash dividends		$ 19,800
Dividend payable, date to be paid						Mar. 16, 2016
Dividend payable, date of record						Feb. 26, 2016
Dividend Declared 2016-Q2 [Member]
Dividends per Share [Abstract]
Dividend payable, date declared						2016-04
Dividend payable per share (in dollars per share)				$ 0.355
Payment of cash dividends	$ 19,900
Dividend payable, date to be paid						Jun. 08, 2016
Dividend payable, date of record						May 27, 2016
Dividend Declared 2016-Q3 [Member]
Dividends per Share [Abstract]
Dividend payable, date to be paid						Sep. 14, 2016
Dividend payable, date of record						Aug. 26, 2016
Dividend Declared 2016-Q3 [Member] | Subsequent Event [Member]
Dividends per Share [Abstract]
Dividend payable, date declared			2016-07
Dividend payable per share (in dollars per share)			$ 0.355

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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- Definition

The month and year (YYYY-MM) that the dividend to be paid was declared.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

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- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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