v2.4.0.8
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Consolidated Balance Sheets [Abstract]    
Accounts receivable, allowances $ 360 $ 308
Property and equipment, accumulated depreciation $ 244,105 $ 215,519
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 75,000,000 75,000,000
Common stock, shares issued 44,764,050 37,703,946
Common stock, shares outstanding 37,564,050 30,503,946
Treasury stock, shares 7,200,000 7,200,000