Share-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Grants of common shares, restricted stock units, and options	$ 3,358	$ 3,087	$ 7,507	$ 7,029
Capitalized share-based compensation	(360)	(310)	(758)	(642)
Share-based compensation expense	$ 2,998	$ 2,777	$ 6,749	$ 6,387

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

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Amount of cost capitalized for award under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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