Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Stockholders' equity:
Common Stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common Stock, shares authorized (in shares)	100,000,000	100,000,000
Common Stock, shares issued (in shares)	32,437,445	32,240,795
Treasury stock, at cost (in shares)	1,757,530	1,757,530