XML 19 R6.htm IDEA: XBRL DOCUMENT v3.10.0.1
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Class A
Class B Convertible
Additional Paid-in Capital
Treasury Stock
Accumulated Other Comprehensive Income (Loss)
Retained Earnings
Beginning Balance at Dec. 31, 2015 $ 455,281 $ 16 $ 2 $ 534,651 $ (475,184) $ (7,408) $ 403,204
Beginning Balance (in shares) at Dec. 31, 2015   15,771 2,035   (6,405)    
Opening balance adjustment due to the adoption of ASU 2014-09 | ASU 2014-09 12,995 $ 0 $ 0 0 $ 0 0 12,995
Net income 92,239 0 0 0 0 0 92,239
Other comprehensive income (loss) (3,521) 0 0 0 0 (3,521) 0
Issuance of class A common stock under stock option plans 1,663 $ 0 $ 0 1,663 $ 0 0 0
Issuance of class A common stock under stock option plans (in shares)   34 0   0    
Tax effect of stock option exercises 1,244 $ 0 $ 0 1,244 $ 0 0 0
Share-based compensation expense 11,817 0 0 11,817 0 0 0
Payment of taxes relating to net exercise of employee stock options (3,739) 0 0 (3,739) 0 0 0
Write-off of deferred tax assets relating to vested employee stock options that are no longer exercisable (1,662) 0 0 (1,662) 0 0 0
Ending Balance at Dec. 31, 2016 566,317 $ 16 $ 2 543,974 $ (475,184) (10,929) 508,438
Ending Balance (in shares) at Dec. 31, 2016   15,805 2,035   (6,405)    
Net income 18,195 $ 0 $ 0 0 $ 0 0 18,195
Other comprehensive income (loss) 5,270 0 0 0 0 5,270 0
Issuance of class A common stock under stock option plans 1,677 $ 0 $ 0 1,677 $ 0 0 0
Issuance of class A common stock under stock option plans (in shares)   12 0   0    
Share-based compensation expense 14,267 $ 0 $ 0 14,267 $ 0 0 0
Ending Balance at Dec. 31, 2017 605,726 $ 16 $ 2 559,918 $ (475,184) (5,659) 526,633
Ending Balance (in shares) at Dec. 31, 2017   15,817 2,035   (6,405)    
Net income 22,501 $ 0 $ 0 0 $ 0 0 22,501
Other comprehensive income (loss) (4,558) 0 0 0 0 (4,558) 0
Issuance of class A common stock under stock option plans 2,471 $ 0 $ 0 2,471 $ 0 0 0
Issuance of class A common stock under stock option plans (in shares)   20 0   0    
Purchases of treasury stock (110,977) $ 0 $ 0 0 $ (110,977) 0 0
Purchases of treasury stock (in shares)   0 0   (880)    
Share-based compensation expense 14,568 $ 0 $ 0 14,568 $ 0 0 0
Ending Balance at Dec. 31, 2018 $ 529,731 $ 16 $ 2 $ 576,957 $ (586,161) $ (10,217) $ 549,134
Ending Balance (in shares) at Dec. 31, 2018   15,837 2,035   (7,285)