CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares shares in Thousands	Jun. 30, 2015	Dec. 31, 2014
SHAREHOLDERS' EQUITY
Series A Convertible Preferred Shares, par value (in dollars per share)	$ 0	$ 0
Series A Convertible Preferred Shares, authorized (in shares)	2,000	2,000
Series A Convertible Preferred Shares, issued (in shares)	70	70
Series A Convertible Preferred shares outstanding (in shares)	70	70
Common shares, par value (in dollars per share)	$ 0	$ 0
Common shares, authorized (in shares)	125,000	125,000
Common shares, issued (in shares)	83,281	83,122
Common shares, outstanding (in shares)	78,387	78,228
Treasury stock (in shares)	4,894	4,894