Consolidated Statements of Equity (Parenthetical) - $ / shares	1 Months Ended	6 Months Ended	12 Months Ended
May 31, 2016	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Dividend on common stock (dollars per share)		$ 0.12	$ 0.10	$ 0.46	$ 0.26	$ 0.10
Common stock, dividend rate, percentage	10.00%			10.00%

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

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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Balance Type:	na
Period Type:	duration