Per Share Data (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]
Number anti-diluted shares outstanding adjustment (in shares)		156		156
Numerator:
Income (loss) from continuing operations attributable to controlling interest	$ 4,443	$ (3,095)	$ 19,474	$ (22,998)
Discontinued operations	380	143	725	410
Net income (loss) attributable to controlling interest	$ 4,823	$ (2,952)	$ 20,199	$ (22,588)
Denominator:
Weighted average number of shares outstanding — basic (in shares/units)	232,514	218,264	225,132	225,501
Dilutive shares (in shares/units)	2,509	0	1,639	0
Weighted average number of shares outstanding — diluted (in shares/units)	235,023	218,264	226,771	225,501
Earnings (losses) per share attributable to controlling interest - basic:
Continuing operations (usd per share/unit)	$ 0.02	$ (0.01)	$ 0.09	$ (0.10)
Discontinued operations (usd per share/unit)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Net income (loss) (usd per share/unit)	$ 0.02	$ (0.01)	$ 0.09	$ (0.10)
Earnings (losses) per share attributable to controlling interest - diluted:
Continuing operations (usd per share/unit)	$ 0.02	$ (0.01)	$ 0.09	$ (0.10)
Discontinued operations (usd per share/unit)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Net income (loss) (usd per share/unit)	$ 0.02	$ (0.01)	$ 0.09	$ (0.10)