Consolidated Statement of Shareholders Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash dividends paid, per share (in dollars per share)	$ 0.05	$ 0.24	$ 0.45
Common Stock Par Value [Member] | Common Stock [Member]
Issuance of stock (in shares)	32,869,217
Issuance of nonvested common stock (in shares)	998,680	299,999	117,500
Class B Stock Par Value [Member] | Common Stock [Member]
Issuance of stock (in shares)	657,383