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Stock-Based Compensation Plans - Narrative (Details) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) period $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) shares | Oct. 31, 1996 shares
Additional disclosures |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01 |  |
Stock-based compensation expense | $ | $ 34,131 | $ 25,100 | $ 21,110 |
Capitalized stock-based compensation cost | $ | $ 10,431 | 9,472 | 9,974 |
Employee Stock Purchase Plan [Abstract] |  |  |  |
Shares issued under Employee Stock Purchase Plan | 20,837 |  |  |
Stock-based compensation expense | $ | $ 34,131 | 25,100 | 21,110 |
Stock Options |  |  |  |
Additional disclosures |  |  |  |
Stock options awarded, term | 10 years |  |  |
Performance awards |  |  |  |
Additional disclosures |  |  |  |
Percentage of stock based compensation elected to be received in the form of stock options upon the election of the recipient | 25.00% |  |  |
Award vesting period (in years) | 3 years |  |  |
Maximum measurement period (in years) | 3 years |  |  |
Performance awards | Maximum |  |  |  |
Additional disclosures |  |  |  |
Percentage of stock based compensation elected to be received in the form of stock options upon the election of the recipient | 100.00% |  |  |
Restricted Stock and Restricted Stock Units |  |  |  |
Additional disclosures |  |  |  |
Unrecognized compensation cost for unvested stock options | $ | $ 31,571 |  |  |
Weighted average period for recognition of unrecognized compensation cost | 1 year 8 months 12 days |  |  |
2009 Plan |  |  |  |
Additional disclosures |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 |  |  |
Common stock shares available for grant | 5,787,169 |  |  |
Employee Stock Purchase Plan [Abstract] |  |  |  |
Employee stock purchase plan, remaining shares of common stock available for issuance | 5,787,169 |  |  |
Non Qualified Employee Stock Purchase Plan |  |  |  |
Additional disclosures |  |  |  |
Common stock shares available for grant | 592,075 |  |  |
Stock-based compensation expense | $ | $ 564 | $ 1,609 | $ 537 |
Employee Stock Purchase Plan [Abstract] |  |  |  |
Employee stock purchase plan, shares of common stock reserved for issuance |  |  |  | 1,000,000
Employee stock purchase plan, remaining shares of common stock available for issuance | 592,075 |  |  |
Employment period of full-time employees for becoming eligible to participate in the plan (in months) | 1 month |  |  |
Number of purchase periods | period | 2 |  |  |
Employee stock purchase plan, discounted stock price percentage | 85.00% |  |  |
Shares issued under Employee Stock Purchase Plan | 20,837 | 21,362 | 20,161 |
Stock-based compensation expense | $ | $ 564 | $ 1,609 | $ 537 |

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- Definition Estimated period over which a full-time employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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