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v3.21.2

Consolidated Statements of Equity - USD ($) $ in Thousands | Total | Cumulative Effect, Period of Adoption, Adjustment | Cumulative Effect, Period of Adoption, Adjusted Balance | Common shares | Common shares Cumulative Effect, Period of Adoption, Adjusted Balance | Additional Paid- in Capital | Additional Paid- in Capital Cumulative Effect, Period of Adoption, Adjusted Balance | Retained Earnings | Retained Earnings Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance | Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2019 |  |  |  | 190,118,181 | 190,118,181 |  |  |  |  |  |  |
Beginning balance, value at Dec. 31, 2019 | $ 1,689,171 | $ (3,984) | $ 1,685,187 | $ 1,896 | $ 1,896 | $ 1,570,575 | $ 1,570,575 | $ 648,656 | $ (3,984) | $ 644,672 | $ (531,956) | $ (531,956)
Issuance of common shares on exercise of options (in shares) |  |  |  | 542,634 |  |  |  |  |  |  |  |
Issuance of common shares on exercise of options | 10,869 |  |  | $ 6 |  | 10,863 |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan (in shares) |  |  |  | 241,953 |  |  |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan | 8,392 |  |  | $ 3 |  | 8,389 |  |  |  |  |  |
Net settlement on vesting of restricted share units (in shares) |  |  |  | 380,625 |  |  |  |  |  |  |  |
Net settlement on vesting of restricted share units | (7,721) |  |  | $ 4 |  | (7,725) |  |  |  |  |  |
Net settlement on vesting of performance units |  |  |  | 902,532 |  |  |  |  |  |  |  |
Net settlement on vesting of performance units | $ (25,827) |  |  | $ 9 |  | (25,836) |  |  |  |  |  |
Stock repurchased and retired (in shares) | (1,781,978) |  |  | (1,781,978) |  |  |  |  |  |  |  |
Stock repurchased and retired (in shares) | $ (73,552) |  |  | $ (18) |  |  |  | (73,534) |  |  |  |
Expenses related to stock repurchase | (36) |  |  |  |  |  |  | (36) |  |  |  |
Stock-based compensation expense | 55,818 |  |  |  |  | 55,818 |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 233,294 |  |  |  |  |  |  | 233,294 |  |  |  |
Other comprehensive income (loss) | (53,469) |  |  |  |  |  |  |  |  |  | (53,469) |
Dividends, common stock | (55,775) |  |  |  |  |  |  | (55,775) |  |  |  |
End balance (in shares) at Sep. 30, 2020 |  |  |  | 190,403,947 |  |  |  |  |  |  |  |
End balance, value at Sep. 30, 2020 | 1,777,180 |  |  | $ 1,900 |  | 1,612,084 |  | 748,621 |  |  | (585,425) |
Beginning balance (in shares) at Jun. 30, 2020 |  |  |  | 190,721,373 |  |  |  |  |  |  |  |
Beginning balance, value at Jun. 30, 2020 | 1,660,614 |  |  | $ 1,903 |  | 1,590,017 |  | 710,382 |  |  | (641,688) |
Issuance of common shares on exercise of options (in shares) |  |  |  | 203,306 |  |  |  |  |  |  |  |
Issuance of common shares on exercise of options | 4,273 |  |  | $ 2 |  | 4,271 |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan (in shares) |  |  |  | 67,639 |  |  |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan | 2,568 |  |  | $ 1 |  | 2,567 |  |  |  |  |  |
Net settlement on vesting of restricted share units (in shares) |  |  |  | 151,419 |  |  |  |  |  |  |  |
Net settlement on vesting of restricted share units | (4,256) |  |  | $ 2 |  | (4,258) |  |  |  |  |  |
Net settlement on vesting of performance units |  |  |  | 0 |  |  |  |  |  |  |  |
Net settlement on vesting of performance units | 0 |  |  |  |  |  |  |  |  |  |  |
Stock repurchased and retired (in shares) |  |  |  | (739,790) |  |  |  |  |  |  |  |
Stock repurchased and retired (in shares) | (28,552) |  |  | $ (8) |  |  |  | (28,544) |  |  |  |
Expenses related to stock repurchase | (15) |  |  |  |  |  |  | (15) |  |  |  |
Stock-based compensation expense | 19,487 |  |  |  |  | 19,487 |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 85,435 |  |  |  |  |  |  | 85,435 |  |  |  |
Other comprehensive income (loss) | 56,263 |  |  |  |  |  |  |  |  |  | 56,263 |
Dividends, common stock | (18,637) |  |  |  |  |  |  | (18,637) |  |  |  |
End balance (in shares) at Sep. 30, 2020 |  |  |  | 190,403,947 |  |  |  |  |  |  |  |
End balance, value at Sep. 30, 2020 | $ 1,777,180 |  |  | $ 1,900 |  | 1,612,084 |  | 748,621 |  |  | (585,425) |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Common shares, issued (in shares) | 189,045,661 |  |  |  |  |  |  |  |  |  |  |
Beginning balance (in shares) at Dec. 31, 2020 | 188,056,571 |  |  | 189,045,661 |  |  |  |  |  |  |  |
Beginning balance, value at Dec. 31, 2020 | $ 1,834,229 |  |  | $ 1,885 |  | 1,636,026 |  | 741,658 |  |  | (545,340) |
Issuance of common shares on exercise of options (in shares) | 1,020,125 |  |  | 1,020,125 |  |  |  |  |  |  |  |
Issuance of common shares on exercise of options | $ 20,913 |  |  | $ 11 |  | 20,902 |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan (in shares) |  |  |  | 216,378 |  |  |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan | 8,873 |  |  | $ 2 |  | 8,871 |  |  |  |  |  |
Net settlement on vesting of restricted share units (in shares) |  |  |  | 264,376 |  |  |  |  |  |  |  |
Net settlement on vesting of restricted share units | (5,842) |  |  | $ 3 |  | (5,845) |  |  |  |  |  |
Net settlement on vesting of performance units |  |  |  | 1,102,440 |  |  |  |  |  |  |  |
Net settlement on vesting of performance units | $ (28,291) |  |  | $ 11 |  | (28,302) |  |  |  |  |  |
Stock repurchased and retired (in shares) | (3,592,409) |  |  | (3,592,409) |  |  |  |  |  |  |  |
Stock repurchased and retired (in shares) | $ (147,152) |  |  | $ (36) |  |  |  | (147,116) |  |  |  |
Expenses related to stock repurchase | (72) |  |  |  |  |  |  | (72) |  |  |  |
Stock-based compensation expense | 58,604 |  |  |  |  | 58,604 |  |  |  |  |  |
Others | 6 |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 296,363 |  |  |  |  |  |  | 296,363 |  |  |  |
Other comprehensive income (loss) | (24,272) |  |  |  |  |  |  |  |  |  | (24,272) |
Dividends, common stock | $ (60,461) |  |  |  |  |  |  | (60,461) |  |  |  |
End balance (in shares) at Sep. 30, 2021 | 188,056,571 |  |  | 188,056,571 |  |  |  |  |  |  |  |
End balance, value at Sep. 30, 2021 | $ 1,952,886 |  |  | $ 1,876 |  | 1,690,250 |  | 830,372 |  |  | (569,612) |
Beginning balance (in shares) at Jun. 30, 2021 |  |  |  | 187,350,298 |  |  |  |  |  |  |  |
Beginning balance, value at Jun. 30, 2021 | 1,838,969 |  |  | $ 1,869 |  | 1,657,756 |  | 748,199 |  |  | (568,855) |
Issuance of common shares on exercise of options (in shares) |  |  |  | 511,813 |  |  |  |  |  |  |  |
Issuance of common shares on exercise of options | 11,737 |  |  | $ 5 |  | 11,732 |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan (in shares) |  |  |  | 60,374 |  |  |  |  |  |  |  |
Issuance of common shares under the employee stock purchase plan | 2,819 |  |  | $ 1 |  | 2,818 |  |  |  |  |  |
Net settlement on vesting of restricted share units (in shares) |  |  |  | 134,086 |  |  |  |  |  |  |  |
Net settlement on vesting of restricted share units | (3,534) |  |  | $ 1 |  | (3,535) |  |  |  |  |  |
Stock repurchased and retired (in shares) |  |  |  | 0 |  |  |  |  |  |  |  |
Stock repurchased and retired (in shares) | 0 |  |  | $ 0 |  |  |  | 0 |  |  |  |
Expenses related to stock repurchase | 0 |  |  |  |  |  |  | 0 |  |  |  |
Stock-based compensation expense | 21,485 |  |  |  |  | 21,485 |  |  |  |  |  |
Others | (6) |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 102,386 |  |  |  |  |  |  | 102,386 |  |  |  |
Other comprehensive income (loss) | (757) |  |  |  |  |  |  |  |  |  | (757) |
Dividends, common stock | $ (20,213) |  |  |  |  |  |  | (20,213) |  |  |  |
End balance (in shares) at Sep. 30, 2021 | 188,056,571 |  |  | 188,056,571 |  |  |  |  |  |  |  |
End balance, value at Sep. 30, 2021 | $ 1,952,886 |  |  | $ 1,876 |  | $ 1,690,250 |  | $ 830,372 |  |  | $ (569,612) |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Common shares, issued (in shares) | 189,045,661 |  |  |  |  |  |  |  |  |  |  |

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