Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Unvested

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- Definition

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

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- Definition

Aggregate number of common shares reserved for future issuance.

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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.

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- Definition

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

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

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Long-Term Incentive Plan Units (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Mar. 04, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based long term incentive plan unit expense		$ 0.2	$ 0.2	$ 0.5	$ 0.3
Capital shares reserved for future issuance (in shares)		1,743,981		1,743,981		1,761,212
Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		0	0	0	0
Grants in Period (in shares)				92,781
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		0	0	17,231	14,811
Director [Member] \| Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in Period (in shares)				22,840
Manager [Member] \| Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		0	0	0	0
Non Manager [Member] \| Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	17,231	0	0	17,231	14,811
Vest December 13, 2021 [Member] \| Dedicated or partially dedicated personnel [Member] \| Long-Term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in Period (in shares)				10,067