CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Dividends accrued, per share (in dollars per share)	$ 1.18	$ 2.03	$ 0.85