CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Equity:
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	49,000,000	49,000,000
Common stock, shares issued (in shares)	30,807,746	30,378,339
Common stock restricted shares (in shares)	689,904	400,194
Treasury stock shares (in shares)	10,440,319	10,434,436