CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized shares	150,000,000	150,000,000
Common stock, issued shares	110,468,956	110,280,703
Treasury stock at cost, shares	22,293	98,944