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Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions | Class A Common Stock | Class B Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Total
--- | --- | --- | --- | --- | --- | ---
Balance at the beginning of the period at Dec. 31, 2018 | $ 2.8 | $ 0.6 | $ 568.3 | $ 440.7 | $ (121.1) | $ 891.3
Balance (in shares) at Dec. 31, 2018 | 27,646,465 | 6,329,290 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income |  |  |  | 31.0 |  | 31.0
Other comprehensive income (loss) |  |  |  |  | (5.9) | (5.9)
Comprehensive income |  |  |  |  |  | 25.1
Shares of Class B common stock converted to Class A common stock (in shares) | 50,000 | (50,000) |  |  |  |
Shares of Class A common stock issued upon the exercise of stock options |  |  | 0.6 |  |  | 0.6
Shares of Class A common stock issued upon the exercise of stock options (in shares) | 9,881 |  |  |  |  |
Stock-based compensation |  |  | 4.6 |  |  | 4.6
Stock repurchase |  |  |  | (5.6) |  | (5.6)
Stock repurchase (in shares) | (74,409) |  |  |  |  |
Net change in restricted stock units |  |  | 3.1 | (6.7) |  | (3.6)
Net change in restricted and performance stock units (in shares) | 78,360 |  |  |  |  |
Common stock dividends |  |  |  | (7.3) |  | (7.3)
Balance at the end of the period at Mar. 31, 2019 | $ 2.8 | $ 0.6 | 576.6 | 452.1 | (127.0) | 905.1
Balance (in shares) at Mar. 31, 2019 | 27,710,297 | 6,279,290 |  |  |  |
Balance at the beginning of the period at Dec. 31, 2019 | $ 2.8 | $ 0.6 | 591.5 | 513.9 | (130.8) | 978.0
Balance (in shares) at Dec. 31, 2019 | 27,586,416 | 6,279,290 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income |  |  |  | 32.0 |  | 32.0
Other comprehensive income (loss) |  |  |  |  | (17.4) | (17.4)
Comprehensive income |  |  |  |  |  | 14.6
Shares of Class B common stock converted to Class A common stock (in shares) | 50,000 | (50,000) |  |  |  |
Stock-based compensation |  |  | 3.6 |  |  | 3.6
Stock repurchase |  |  |  | (14.7) |  | (14.7)
Stock repurchase (in shares) | (174,707) |  |  |  |  |
Net change in restricted stock units |  |  | 2.0 | (7.7) |  | (5.7)
Net change in restricted and performance stock units (in shares) | 83,048 |  |  |  |  |
Common stock dividends |  |  |  | (8.0) |  | (8.0)
Balance at the end of the period at Mar. 29, 2020 | $ 2.8 | $ 0.6 | $ 597.1 | $ 515.5 | $ (148.2) | $ 967.8
Balance (in shares) at Mar. 29, 2020 | 27,544,757 | 6,229,290 |  |  |  |

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