Share Capital - Narrative (Details) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May 05, 2023	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023 USD ($) $ / shares shares	Apr. 29, 2024 shares	Nov. 02, 2024	Dec. 31, 2023 USD ($) shares	Aug. 22, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion ratio	0.1
Common stock, shares outstanding (in shares)		31,401,214				32,246,501
Stock-based compensation expense | $		$ 3.4	$ 1.5
Unrecognized compensation cost | $		$ 26.8				$ 8.6
Weighted average period for recognition		2 years 3 months 18 days
PSUs | Vested on December 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments for units vested in period | $		$ 10.4
PSUs | Vested on December 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments for units vested in period | $			$ 15.1
RSUs | 2007 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		500,000
Award vesting period		3 years
RSUs | Year One | 2007 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		33.33%
RSUs | Year Two | 2007 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		33.33%
RSUs | Year Three | 2007 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		33.33%
2022 program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased during period, weighted average price (in dollars per share) | $ / shares			$ 8.19
Share repurchased during period cancelled (in shares)			1,308,212
2023 Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased during period (in shares)		886,666
Stock repurchased during period, weighted average price (in dollars per share) | $ / shares		$ 5.58
Share repurchased during period cancelled (in shares)						28,612
Shares repurchased and canceled (in shares)		858,054
2023 Program | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased during period (in shares)				1,997,500
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock purchased as percent of shares issued and outstanding							10.00%
Maximum | Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock purchased as percent of shares issued and outstanding					10.00%
Maximum | 2023 Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares outstanding (in shares)		3,234,914