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Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 9 months ended Sep. 30, 2015 - USD ($)
$ in Thousands
Common Stock [Member]
Common Class A [Member]
Common Stock [Member]
Common Class B [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance at Dec. 31, 2014 $ 168 $ 24 $ 141,248 $ (13,101) $ 40,865 $ 169,204
Net income $ 28,855 28,855
Other comprehensive loss $ (1,209) (1,209)
Share repurchase $ (4,994) (4,994)
Exercise of stock options $ 1 $ 1,091 1,092
Stock-based employee compensation expense $ 1 935 936
Issuance of restricted shares (1,586) (1,586)
Income tax benefit arising from restricted share vesting and option exercise 1,757 1,757
Balance at Sep. 30, 2015 $ 170 $ 24 $ 143,445 $ (4,994) $ (14,310) $ 69,720 $ 194,055