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Selected Quarterly Financial Data | 12 Months Ended
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Dec. 31, 2020
Selected Quarterly Financial Data |
Selected Quarterly Financial Data | 17. Selected Quarterly Financial Data Quarterly financial information for the years ended December 31, 2020 and 2019 is summarized as follows (in thousands, except per share data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2020 |
​ |  | Q1 |  | Q2 |  | Q3 |  | Q4 |
Revenue | ​ | $ | 700,131 | ​ | $ | 743,468 | ​ | $ | 714,099 | ​ | $ | 698,961 | ​
Gross profit | ​ |  | 117,093 | ​ |  | 145,695 | ​ |  | 147,196 | ​ |  | 136,999 | ​
Net income | ​ |  | 17,716 | ​ |  | 39,495 | ​ |  | 50,088 | ​ |  | 42,840 | ​
INCOME PER SHARE: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.48 | ​ | $ | 1.08 | ​ | $ | 1.37 | ​ | $ | 1.18 | ​
Diluted | ​ | $ | 0.48 | ​ | $ | 1.08 | ​ | $ | 1.36 | ​ | $ | 1.17 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2019 |
​ |  | Q1 |  | Q2 |  | Q3 |  | Q4 |
Revenue | ​ | $ | 538,473 | ​ | $ | 650,302 | ​ | $ | 706,918 | ​ | $ | 719,584 | ​
Gross profit (1) | ​ |  | 106,665 | ​ |  | 120,016 | ​ |  | 142,702 | ​ |  | 132,560 | ​
Net income | ​ |  | 19,866 | ​ |  | 24,173 | ​ |  | 36,233 | ​ |  | 34,052 | ​
INCOME PER SHARE: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.54 | ​ | $ | 0.65 | ​ | $ | 0.98 | ​ | $ | 0.93 | ​
Diluted | ​ | $ | 0.53 | ​ | $ | 0.65 | ​ | $ | 0.98 | ​ | $ | 0.92 | ​
​
| (1) | In the fourth quarter of 2019, we recorded a $4.8 million gain due to insurance proceeds we received in the fourth quarter related to the ransomware incident that occurred in April 2019.
The sums of the individual quarterly earnings per share amounts do not necessarily agree with year-to-date earnings per share as each quarter’s computation is based on the weighted average number of shares outstanding during the quarter, the weighted average stock price during the quarter and the dilutive effects of options and contingently issuable restricted stock in each quarter.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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