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Stockholders' equity - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2022 USD ($) plan vote $ / shares shares | Nov. 11, 2022 USD ($) shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares | Nov. 11, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Preferred stock, shares authorized (in shares) | shares | 15,000,000 |  | 15,000,000.0 |  |
Preferred stock, par value (in dollars per share) | $ / shares | $ 0.001 |  | $ 0.001 |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.001 |  | $ 0.001 | $ 0.001 |
Common stock, shares authorized (in shares) | shares | 200,000,000 |  | 200,000,000.0 |  |
Common stock, voting rights | vote | 1 |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  | $ 250,000,000
Stock repurchased during period, value | $ 75,500,000 | $ 187,900,000 | $ 112,600,000 |  |
Shares of common stock repurchased (in shares) | shares | 1,800,000 | 4,400,000 | 2,600,000 |  |
Number of stock based employee compensation plans | plan | 1 |  |  |  |
Contractual life of awards | 7 years |  |  |  |
Cash received from option exercises | $ 500,000 |  | $ 10,400,000 | $ 27,600,000 |
Unrecognized compensation cost related to stock options | $ 12,000,000 |  |  |  |
Weighted average grant date fair value of options granted (in dollars per share) | $ / shares | $ 17.85 |  | $ 35.16 | $ 21.69 |
Total intrinsic value of options exercised | $ 300,000 |  | $ 15,700,000 | $ 38,200,000 |
Employee Stock Option |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Common stock authorized for issuance under the plan (in shares) | shares | 25,400,000 |  |  |  |
Common stock available for future awards (in shares) | shares | 2,900,000 |  |  |  |
Exercise price of option as percentage of fair market value at grant date, minimum | 100.00% |  |  |  |
Contractual life of awards | 7 years |  |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total fair value of awards vested | $ 30,900,000 |  | 26,900,000 | 34,100,000 |
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount | $ 54,500,000 |  |  |  |
Weighted average period expected to be recognized related to unvested equity awards | 1 year 10 months 24 days |  |  |  |
Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total fair value of awards vested | $ 2,500,000 |  | $ 3,800,000 | $ 1,200,000 |
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount | $ 5,300,000 |  |  |  |
Weighted average period expected to be recognized related to unvested equity awards | 1 year 10 months 24 days |  |  |  |
Vesting period | 3 years |  |  |  |
Performance Stock Units | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Payout percentage | 50.00% |  |  |  |
Performance Stock Units | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Payout percentage | 150.00% |  |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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