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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Share-based Payment Arrangement, Expensed and Capitalized, Amount | Stock-based compensation expense, net of forfeitures of $0.6 million for the three months ended March 31, 2022, was recorded in the following line items in the condensed consolidated statements of operations. Forfeitures were not material for the three months ended March 31, 2021.
| Three Months Ended March 31,
(in thousands) | 2022 |  | 2021
Cost of sales - contracts | $ | 49 |  |  | $ | 67 |
Selling, general and administrative | 3,487 |  |  | 1,253 |
Total stock-based compensation expense | $ | 3,536 |  |  | $ | 1,320 |
Summary of Stock Option Activity | A summary of stock option activity for the three months ended March 31, 2022 is below:
(in thousands, except for weighted average exercise price) | Options outstanding |  | Weighted average exercise price
Outstanding at January 1, 2022 | 1,306 |  |  | $ | 11.95 |
Exercised | (96) |  |  | 7.43 |
Canceled/forfeited | (68) |  |  | 8.97 |
Outstanding at March 31, 2022 | 1,142 |  |  | $ | 12.52 |
Summary of Restricted Stock and RSU Awards Activity | A summary of unvested restricted stock awards activity for the three months ended March 31, 2022 is below:
(in thousands, except for weighted average award value) | Restricted Stock Awards |  | Weighted average award value
Outstanding at January 1, 2022 | 27 |  |  | $ | 25.42 |
Vested | (27) |  |  | 25.42 |
Outstanding at March 31, 2022 | — |  |  |
A summary of unvested restricted stock units activity for the three months ended March 31, 2022 is below:
(in thousands, except for weighted average award value) | Restricted Stock Unit Awards |  | Weighted average award value
Outstanding at January 1, 2022 | 418 |  |  | $ | 34.08 |
Granted | 309 |  |  | 38.34 |
Vested | (71) |  |  | 26.36 |
Canceled/forfeited | (49) |  |  | 46.39 |
Outstanding at March 31, 2022 | 607 |  |  | $ | 36.02 |

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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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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -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 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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