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Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - 9 months ended Sep. 30, 2015 - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Treasury Stock [Member]
Paid-in Capital [Member]
(Deficit) [Member]
Accumulated Other Comprehensive Loss, Net [Member]
Balance at Dec. 31, 2014 $ 1,583 $ 1,058 $ (108,326) $ 571,674 $ (438,221) $ (24,602)
Balance, common stock, shares issued at Dec. 31, 2014 105,818 105,818        
Balance, treasury stock, at cost, shares at Dec. 31, 2014 (21,111)   (21,111)      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income $ 27,217       27,217  
Other comprehensive income (1,244)         (1,244)
Share-based compensation on equity classified awards 2,391     2,391    
Purchase of treasury stock (38,942)   $ (38,942)      
Purchase of treasury stock (in shares)     (3,469)      
Issuance of common stock for share-based compensation 0 $ 5   (5)    
Issuance of common stock for share-based compensation (in shares)   502        
Exercise of common stock options 471 $ 1   470    
Exercise of common stock options (in shares)   117        
Tax benefit from share-based compensation 976     976    
Balance at Sep. 30, 2015 $ (7,548) $ 1,064 $ (147,268) $ 575,506 $ (411,004) $ (25,846)
Balance, common stock, shares issued at Sep. 30, 2015 106,437 106,437        
Balance, treasury stock, at cost, shares at Sep. 30, 2015 (24,580)   (24,580)