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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
BALANCE at Dec. 31, 2018 | $ 1,264,753 | $ 805 | $ 107,455 | $ 1,413,746 | $ (16,073) | $ (241,180)
Comprehensive income | 36,599 | 0 | 0 | 36,086 | 513 | 0
Purchases of common stock | (20,545) | 0 | 0 | 0 | 0 | (20,545)
Dividends on common stock | (6,290) | 0 | 0 | (6,290) | 0 | 0
Equity compensation activity | (1,179) | 0 | (1,578) | 0 | 0 | 399
Non-cash equity compensation expense | 2,051 | 0 | 2,051 | 0 | 0 | 0
BALANCE at Mar. 31, 2019 | 1,275,389 | 805 | 107,928 | 1,443,542 | (15,560) | (261,326)
BALANCE at Dec. 31, 2019 | 1,111,008 | 805 | 112,649 | 1,294,608 | (14,728) | (282,326)
Comprehensive income | 7,568 | 0 | 0 | 23,058 | (15,490) | 0
Purchases of common stock | (8,798) | 0 | 0 | 0 | 0 | (8,798)
Dividends on common stock | (6,218) | 0 | 0 | (6,218) | 0 | 0
Equity compensation activity | (3,930) | 0 | (4,360) | 0 | 0 | 430
Non-cash equity compensation expense | 2,406 | 0 | 2,406 | 0 | 0 | 0
BALANCE at Mar. 31, 2020 | $ 1,102,036 | $ 805 | $ 110,695 | $ 1,311,448 | $ (30,218) | $ (290,694)

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