CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (unaudited) (Parenthetical)	3 Months Ended
Mar. 31, 2016 $ / shares
Series A Cumulative Convertible Preferred Stock [Member]
Series A preferred stock dividend (in dollars per share)	$ 1.00

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

No definition available.

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