Redeemable Preferred Stock (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 18, 2012
Equity [Abstract]
Dividend Percent of Share			$ 0.06
Preferred stock, redemption amount	146,667,000		146,667,000		146,603,000	143,200,000
Preferred stock, shares issued	0		0		0	8,955,730
Preferred stock, redemption price per share						$ 15.99
Dividend Paid To Noncotrolling Interest Holders in excess of income earned	$ 447,000	$ 1,834,000	$ 957,000	$ 1,834,000