CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Series B Preferred Shares
Preferred stock, shares outstanding	200,000	200,000
Preferred stock, par value (in dollars per share)	$ 0.08	$ 0.08
Series A Preferred Stock [Member]
Preferred stock, shares outstanding	1	1
Preferred stock, par value (in dollars per share)	$ 0.08	$ 0.08
Class A Common Stock [Member]
Common stock, shares issued (in shares)	148,235,428	145,486,497
Common stock, par value (in dollars per share)	$ 0.08	$ 0.08
Common Class B [Member]
Common stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.08	$ 0.08

Face amount or stated value per share of common stock.

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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

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(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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