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Equity (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity [Abstract] |
Treasury Stock | Quanta repurchased the following shares of common stock in the open market under the stock repurchase programs (in thousands):
Year ended: |  | Shares |  | Amount
December 31, 2020 |  | 6,680 |  |  | $ | 249,949 |
December 31, 2019 |  | 376 |  |  | $ | 11,954 |
December 31, 2018 |  | 13,917 |  |  | $ | 451,290 |
Dividends | Quanta declared and paid the following cash dividends and cash dividend equivalents during 2020, 2019 and 2018 (in thousands, except per share amounts):
Declaration |  | Record |  | Payment |  | Dividend |  | Dividends
Date |  | Date |  | Date |  | Per Share |  | Declared
December 11, 2020 |  | January 4, 2021 |  | January 15, 2021 |  | $ | 0.06 |  |  | $ | 8,933 |
August 26, 2020 |  | October 1, 2020 |  | October 15, 2020 |  | $ | 0.05 |  |  | $ | 7,244 |
May 28, 2020 |  | July 1, 2020 |  | July 15, 2020 |  | $ | 0.05 |  |  | $ | 7,182 |
March 26, 2020 |  | April 6, 2020 |  | April 15, 2020 |  | $ | 0.05 |  |  | $ | 7,184 |
December 11, 2019 |  | January 2, 2020 |  | January 16, 2020 |  | $ | 0.05 |  |  | $ | 7,371 |
August 28, 2019 |  | October 1, 2019 |  | October 15, 2019 |  | $ | 0.04 |  |  | $ | 5,564 |
May 24, 2019 |  | July 1, 2019 |  | July 15, 2019 |  | $ | 0.04 |  |  | $ | 6,233 |
March 21, 2019 |  | April 5, 2019 |  | April 19, 2019 |  | $ | 0.04 |  |  | $ | 5,896 |
December 6, 2018 |  | January 2, 2019 |  | January 16, 2019 |  | $ | 0.04 |  |  | $ | 5,838 |

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 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 http://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 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 + Details
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