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CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in- Capital | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Retained Earnings
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2020 |  |  | 55,535,554 |  |  |  |
Beginning balance at Dec. 31, 2020 |  | $ (5,752) | $ 951 | $ 233,921 | $ (4,646) | $ (1,260,478) | $ 1,024,500
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 22,337 |  |  |  |  | 22,337
Other comprehensive income (loss), net of tax |  | 52 |  |  | 52 |  |
Share-based payment activity (in shares) | [1] |  | 48,781 |  |  |  |
Share-based payment activity | [1] | 7,644 |  | 3,617 |  | 4,030 | (3)
Dividends declared | [1] | 0 |  |  |  |  |
Treasury purchases (in shares) |  |  | (46,499) |  |  |  |
Treasury purchases |  | (5,046) |  |  |  | (5,046) |
Ending balance (in shares) at Mar. 31, 2021 |  |  | 55,537,836 |  |  |  |
Ending balance at Mar. 31, 2021 |  | 19,235 | $ 951 | 237,538 | (4,594) | (1,261,494) | 1,046,834
Beginning balance (in shares) at Dec. 31, 2020 |  |  | 55,535,554 |  |  |  |
Beginning balance at Dec. 31, 2020 |  | (5,752) | $ 951 | 233,921 | (4,646) | (1,260,478) | 1,024,500
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 108,219 |  |  |  |  |
Other comprehensive income (loss), net of tax |  | 123 |  |  |  |  |
Ending balance (in shares) at Jun. 30, 2021 |  |  | 55,646,993 |  |  |  |
Ending balance at Jun. 30, 2021 |  | 104,933 | $ 951 | 246,604 | (4,523) | (1,258,295) | 1,120,196
Beginning balance (in shares) at Mar. 31, 2021 |  |  | 55,537,836 |  |  |  |
Beginning balance at Mar. 31, 2021 |  | 19,235 | $ 951 | 237,538 | (4,594) | (1,261,494) | 1,046,834
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 85,882 |  |  |  |  | 85,882
Other comprehensive income (loss), net of tax |  | 71 |  |  | 71 |  |
Share-based payment activity (in shares) |  |  | 111,895 |  |  |  |
Share-based payment activity |  | 12,583 |  | 9,066 |  | 3,516 | 1
Dividends declared |  | (12,521) |  |  |  |  | (12,521)
Treasury purchases (in shares) |  |  | (2,738) |  |  |  |
Treasury purchases |  | (317) |  |  |  | (317) |
Ending balance (in shares) at Jun. 30, 2021 |  |  | 55,646,993 |  |  |  |
Ending balance at Jun. 30, 2021 |  | $ 104,933 | $ 951 | 246,604 | (4,523) | (1,258,295) | 1,120,196
Beginning balance (in shares) at Dec. 31, 2021 |  | 55,609,226 | 55,609,226 |  |  |  |
Beginning balance at Dec. 31, 2021 |  | $ 265,882 | $ 951 | 259,317 | (4,574) | (1,265,032) | 1,275,220
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 67,391 |  |  |  |  | 67,391
Other comprehensive income (loss), net of tax |  | (134) |  |  | (134) |  |
Share-based payment activity (in shares) | [1] |  | 262,008 |  |  |  |
Share-based payment activity | [1] | 9,558 |  | 6,068 |  | 3,486 | 4
Dividends declared | [1] | (13,250) |  |  |  |  | (13,250)
Treasury purchases (in shares) |  |  | (100,912) |  |  |  |
Treasury purchases |  | (14,802) |  |  |  | (14,802) |
Ending balance (in shares) at Mar. 31, 2022 |  |  | 55,770,322 |  |  |  |
Ending balance at Mar. 31, 2022 |  | $ 314,645 | $ 951 | 265,385 | (4,708) | (1,276,348) | 1,329,365
Beginning balance (in shares) at Dec. 31, 2021 |  | 55,609,226 | 55,609,226 |  |  |  |
Beginning balance at Dec. 31, 2021 |  | $ 265,882 | $ 951 | 259,317 | (4,574) | (1,265,032) | 1,275,220
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 173,559 |  |  |  |  |
Other comprehensive income (loss), net of tax |  | $ (237) |  |  |  |  |
Ending balance (in shares) at Jun. 30, 2022 |  | 55,780,322 | 55,780,322 |  |  |  |
Ending balance at Jun. 30, 2022 |  | $ 416,725 | $ 951 | 274,384 | (4,811) | (1,276,090) | 1,422,291
Beginning balance (in shares) at Mar. 31, 2022 |  |  | 55,770,322 |  |  |  |
Beginning balance at Mar. 31, 2022 |  | 314,645 | $ 951 | 265,385 | (4,708) | (1,276,348) | 1,329,365
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 106,168 |  |  |  |  | 106,168
Other comprehensive income (loss), net of tax |  | (103) |  |  | (103) |  |
Share-based payment activity (in shares) |  |  | 12,422 |  |  |  |
Share-based payment activity |  | 9,595 |  | 8,999 |  | 596 |
Dividends declared |  | (13,242) |  |  |  |  | (13,242)
Treasury purchases (in shares) |  |  | (2,422) |  |  |  |
Treasury purchases |  | $ (338) |  |  |  | (338) |
Ending balance (in shares) at Jun. 30, 2022 |  | 55,780,322 | 55,780,322 |  |  |  |
Ending balance at Jun. 30, 2022 |  | $ 416,725 | $ 951 | $ 274,384 | $ (4,811) | $ (1,276,090) | $ 1,422,291
[1] | In April 2020, in light of uncertainty resulting from the COVID-19 pandemic, we suspended future, undeclared dividends. In May 2021, the Company resumed the payment of quarterly dividends, subject to future declarations by our board of directors, and declared a quarterly cash dividend of $0.225 per share of common stock. On December 6, 2021, the Company's board of directors approved a 6% increase in the quarterly cash dividend and declared a quarterly cash dividend of $0.2375 per share of common stock. During certain periods presented, accumulated dividends were paid to certain shareholders upon vesting of performance vested restricted stock units ("PVRSU") which are captured in Share-based payment activity.

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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration