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Share-based compensation (Restricted stock units and restricted stocks activity) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Weighted average grant date fair value ($) |  |  |
Share based compensation expense | $ 96,087 | $ 69,187 | $ 69,410
Time based restricted stock units and restricted stock |  |  |
Number |  |  |
Number at beginning of period (in shares) | 2,108,403 |  |
Granted (in shares) | 1,949,786 |  |
Vested (in shares) | (908,588) |  |
Forfeited (in shares) | (8,722) |  |
Number at end of period (in shares) | 3,140,879 | 2,108,403 |
Weighted average grant date fair value ($) |  |  |
Number at beginning of period (in USD per share) | $ 43.81 |  |
Granted (in USD per share) | 53.57 |  |
Vested (in USD per share) | 50.94 |  |
Forfeited (in USD per share) | 45.67 |  |
Number at end of period (in USD per share) | $ 47.80 | $ 43.81 |
Peformance based restricted stock units and restricted stock |  |  |
Number |  |  |
Number at beginning of period (in shares) | 2,254,212 |  |
Granted (in shares) | 3,265,427 |  |
Vested (in shares) | (509,847) |  |
Forfeited (in shares) | 0 |  |
Number at end of period (in shares) | 5,009,792 | 2,254,212 |
Weighted average grant date fair value ($) |  |  |
Number at beginning of period (in USD per share) | $ 49.11 |  |
Granted (in USD per share) | 52.67 |  |
Vested (in USD per share) | 51.85 |  |
Forfeited (in USD per share) | 0 |  |
Number at end of period (in USD per share) | $ 51.15 | $ 49.11 |
Restricted stock | NV Equity Plan |  |  |
Number |  |  |
Granted (in shares) | 3,832,382 |  |
Weighted average grant date fair value ($) |  |  |
Restricted stocks issued (in shares) | 3,506,094 |  |
Shares withheld to pay taxes (in shares) | 326,288 |  |
Shares withheld to pay taxes, treated as granted (in shares) | 169,673 |  |
Share based compensation expense | $ 9,700 |  |
Restricted stock | Nv Equity Plan - Executives |  |  |
Number |  |  |
Granted (in shares) | 625,000 |  |
Weighted average grant date fair value ($) |  |  |
Number at end of period (in USD per share) | $ 42.33 |  |
Aggregate fair value of outstanding restricted stock | $ 26,500 |  |
Restricted stock | Nv Equity Plan - Executives | First Milestone |  |  |
Number |  |  |
Number at end of period (in shares) | 312,500 |  |
Weighted average grant date fair value ($) |  |  |
Average share price (in USD per share) | $ 75 |  |
Number of consecutive calendar days, average share price | 30 days |  |
Restricted stock | Nv Equity Plan - Executives | Second Milestone |  |  |
Number |  |  |
Number at end of period (in shares) | 312,500 |  |
Weighted average grant date fair value ($) |  |  |
Average share price (in USD per share) | $ 90 |  |
Number of consecutive calendar days, average share price | 30 days |  |
Restricted stock units | NV Equity Plan |  |  |
Number |  |  |
Vested (in shares) | (984,972) |  |
Weighted average grant date fair value ($) |  |  |
Shares withheld to pay taxes, treated as granted (in shares) | 169,673 |  |
Ordinary shares issued to the holders of these restricted stock units with the remainder being withheld and applied to pay the taxes involved (in shares) | 609,557 |  |
Lapsed restrictions on restricted stock | NV Equity Plan |  |  |
Weighted average grant date fair value ($) |  |  |
Shares withheld to pay taxes, treated as granted (in shares) | 235,629 |  |
Restricted stock issued (in shares) | 263,790 |  |

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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