Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v2.4.0.6
Stockholders' Equity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Summary of changes in shareholders' equity        
Balance     $ 488,912 $ 499,995
Balance, shares 40,653,337   40,653,337  
Net income/(loss) 8,005 562 3,251 (6,097)
Exercise of stock options     1,222 1,798
Exercise of stock options, shares 10,600 19,550 79,300 116,600
Equity award compensation expense     3,273 3,101
Issuance of restricted stock     0 0
Balance 496,658 498,797 496,658 498,797
Balance, shares     40,377,021  
Common Stock [Member]
        
Summary of changes in shareholders' equity        
Balance     404 400
Balance, shares 40,653,000 40,301,000 40,653,000 40,301,000
Net income/(loss)     0 0
Exercise of stock options     1 1
Exercise of stock options, shares     79,000 116,600
Equity award compensation expense     0 0
Issuance of restricted stock, Shares     197,000 154,000
Issuance of restricted stock     2 2
Balance 407 403 407 403
Balance, shares     40,377,000 40,030,000
Additional Paid In Capital [Member]
        
Summary of changes in shareholders' equity        
Balance     478,839 468,820
Net income/(loss)     0 0
Exercise of stock options     1,221 1,797
Equity award compensation expense     3,273 3,101
Issuance of restricted stock     (2) (2)
Balance 483,331 473,716 483,331 473,716
Retained Earnings [Member]
        
Summary of changes in shareholders' equity        
Balance     198,442 219,548
Net income/(loss)     3,251 (6,097)
Exercise of stock options     0 0
Equity award compensation expense     0 0
Issuance of restricted stock     0 0
Balance 201,693 213,451 201,693 213,451
Treasury Stock [Member]
        
Summary of changes in shareholders' equity        
Balance     (188,773) (188,773)
Net income/(loss)     0 0
Exercise of stock options     0 0
Equity award compensation expense     0 0
Issuance of restricted stock     0 0
Balance $ (188,773) $ (188,773) $ (188,773) $ (188,773)