Stock-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($) item $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans \| item	3
Unrecognized compensation cost related to unvested awards under share-based plans \| $	$ 13.4
Cost expected to be recognized over a weighted average period	1 year 10 months 24 days
Share-based Payment Arrangement, Expense \| $	$ 1.6	$ 2.3
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	219,311	313,697
Granted (in dollars per share) \| $ / shares	$ 30.32	$ 18.81
Restricted Stock Units (RSUs) [Member] \| Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Granted (in shares)		261,073
Restricted Stock Units (RSUs) [Member] \| Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year
Granted (in shares)		52,624
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	100,000	100,000
Options Granted (in dollars per share) \| $ / shares	$ 14.01	$ 8.51
Vesting period	4 years	4 years
Stock option exercised (in shares)	27,818	61,500
Options exercised and vested in period, total intrinsic value \| $	$ 9.4	$ 5.1
Restricted Stock Units And Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value \| $	$ 4.0	$ 2.4

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Share Based Compensation Arrangement By Share Based Payment Award Options Exercises And Vested In Period Total Intrinsic Value

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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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.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Gross number of share options (or share units) granted during the period.

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