Stock-based compensation - Narrative (Details)						4 Months Ended	5 Months Ended	12 Months Ended
	Oct. 19, 2023 USD ($) shares	Jan. 03, 2023 USD ($) peer shares	Feb. 24, 2022 USD ($) peer shares	Feb. 08, 2021 USD ($) shares	Mar. 25, 2020 shares	Aug. 30, 2022 shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) shares	Jul. 21, 2023 shares	Jun. 30, 2022 shares	Jun. 30, 2021 shares	Jul. 31, 2020 shares	May 31, 2017 shares	Dec. 31, 2013 shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)								4 years
Share-based payment arrangement, expense								$ 31,670,000	$ 25,334,000	$ 13,956,000
Weighted average remaining contractual life (Year)								2 years 21 days
Number of peers | peer		20	20
Service vesting-based restricted stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unvested restricted stock awards (in shares) | shares							2,312,898	2,312,898	1,879,215	1,212,783
Share-based payment arrangement, expense							$ 200,000	$ 25,200,000	$ 21,000,000	$ 12,700,000
Unrecognized compensation costs for service vesting-based stock options							$ 37,800,000	37,800,000
Aggregate fair value of the service vesting-based awards granted								25,000,000	34,700,000	37,800,000
Aggregate fair value of the service vesting-based awards that vested								$ 20,500,000	$ 12,600,000	15,900,000
Grants in period (in shares) | shares								1,907,101	1,373,909
Period for recognition (Year)								2 years 8 months 12 days
Granted (in dollars per share) | $ / shares								$ 13.12	$ 25.26
Vesting to current employees (in shares) | shares								1,237,221	569,535
Service vesting-based restricted stock | Executive Officer
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based payment arrangement, expense										$ 666,000
Grants in period (in shares) | shares						21,566	22,675
Service vesting-based restricted stock | Executive Officer | Share-Based Payment Arrangement, Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting percentage								25.00%
Service vesting-based restricted stock | Executive Officer | Share-Based Payment Arrangement, Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting percentage								25.00%
Service vesting-based restricted stock | Executive Officer | Share-Based Payment Arrangement, Tranche Three
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting percentage								25.00%
Service vesting-based restricted stock | Executive Officer | Share-Based Payment Arrangement, Tranche Four
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting percentage								25.00%
Service vesting-based stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options, outstanding (in shares) | shares							217,250	217,250	456,293	624,531
Share-based payment arrangement, expense										$ 25,000
Aggregate intrinsic value of outstanding service vesting-based stock options							$ 3,100,000	$ 3,100,000
Aggregate intrinsic value of exercisable service vesting-based stock options							3,100,000	3,100,000
Intrinsic value of service vesting-based awards exercised								$ 3,900,000	$ 4,100,000	$ 6,900,000
Service based-vesting options granted (in shares) | shares								0	0	0
Weighted average remaining contractual life (Year)								2 years 1 month 6 days
Unrecognized compensation costs for service vesting-based stock options							$ 0	$ 0
Market-based restricted stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unvested restricted stock awards (in shares) | shares	150,155						509,166	509,166	271,044	139,756
Share-based payment arrangement, expense	$ 1,700,000	$ 6,800,000	$ 6,700,000					$ 6,500,000	$ 4,300,000	$ 1,400,000
Unrecognized compensation costs for service vesting-based stock options							$ 3,300,000	$ 3,300,000
Aggregate fair value of the service vesting-based awards granted				$ 1,300,000
Grants in period (in shares) | shares		30,616	218,280	30,616	109,140			268,738	349,568
Period for recognition (Year)								1 year
Granted (in dollars per share) | $ / shares								$ 24.23	$ 22.66
Performance-based awards granted								$ 6,500,000	$ 6,700,000	1,800,000
Aggregate fair value of the performance-based awards								$ 700,000	$ 5,000,000	10,200,000
Total shareholder return attainment (percent)		100.00%	200.00%
Vesting to current employees (in shares) | shares								30,616	218,280
Historical volatility		78.00%	78.00%	68.00%
Dividend yield		0.00%	0.00%	0.00%
Risk-free interest rate		4.40%	0.30%	0.10%
Measurement date with a maturity period (Year)		2 years	2 years	2 years
Market-based restricted stock | Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total shareholder return attainment (percent)		0.00%	0.00%	0.00%
Market-based restricted stock | Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total shareholder return attainment (percent)		200.00%	200.00%	200.00%
Market-based restricted stock | Executive Officer
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grants in period (in shares) | shares		268,738	240,428
Historical volatility			63.00%
Dividend yield			0.00%
Risk-free interest rate			1.50%
Market-based restricted stock | Executive Officer | Michael Rice
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grants in period (in shares) | shares		99,038	70,094
Market-based Restricted Stock Second Issuance
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Aggregate fair value of the service vesting-based awards granted										1,200,000
The 2013 Performance Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (in shares) | shares												8,500,000	6,500,000	5,000,000	4,100,000	3,100,000
Options, outstanding (in shares) | shares							217,000	217,000
Unvested restricted stock awards (in shares) | shares							1,600,000	1,600,000
The 2023 Performance Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (in shares) | shares											4,200,000
The 2023 Performance Incentive Plan | Service vesting-based restricted stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unvested restricted stock awards (in shares) | shares							1,200,000	1,200,000
Management Performance Bonus Plan 2017 | Performance-based stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based payment arrangement, expense								$ 0	$ 0	0
Intrinsic value of service vesting-based awards exercised								$ 0	$ 0	$ 27,400,000
Service based-vesting options granted (in shares) | shares								0	0	0