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Employee Benefits And Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |
Classification Of Stock-Based Compensation | The following table presents the classification of stock-based compensation:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
| (In thousands)
Cost of revenues | $ | 6,525 |  |  | $ | 6,321 |  |  | $ | 6,739 |
Sales and marketing | 4,312 |  |  | 3,453 |  |  | 3,755 |
Research and development | 8,283 |  |  | 7,137 |  |  | 6,370 |
General and administrative | 34,319 |  |  | 31,332 |  |  | 33,762 |
Stock-based compensation expense | 53,439 |  |  | 48,243 |  |  | 50,626 |
Capitalization (included in Property and equipment, net) | 1,622 |  |  | 1,783 |  |  | 1,690 |
Total stock-based compensation | $ | 55,061 |  |  | $ | 50,026 |  |  | $ | 52,316 |
Nature Of Total Stock-Based Compensation | The following table presents the nature of the Company’s total stock-based compensation:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
| (In thousands)
RSUs | $ | 41,476 |  |  | $ | 38,217 |  |  | $ | 36,930 |
PSUs | 9,310 |  |  | 7,380 |  |  | 10,522 |
ESPP | 4,275 |  |  | 4,429 |  |  | 4,864 |
Total stock-based compensation | $ | 55,061 |  |  | $ | 50,026 |  |  | $ | 52,316 |
Summary Of Unvested RSUs Activity | The following table summarizes unvested RSUs activity for the year ended December 31, 2021:
| Shares |  | Weighted-Average Grant-Date Fair Value
| (Shares in thousands)
Unvested at beginning of period | 661 |  |  | $ | 164.83 |
Granted | 316 |  |  | $ | 200.64 |
PSU achievement adjustment | (10) |  |  | $ | 110.57 |
Vested and settled | (334) |  |  | $ | 147.80 |
Forfeited | (30) |  |  | $ | 185.99 |
| 603 |  |  | $ | 192.88 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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