Compensation Plans - Information Pertaining to Share-based Compensation Issued (Details) - Share Based Compensation [Member] $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
2020 Executive Management Incentive Plan [Member] | Equity Awards Issued in the First Quarter of 2021 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares earned under each incentive plan	555,726
Common shares surrendered on issuance date to satisfy tax withholding obligations	117,647
Common shares earned and issued under each incentive plan, net of common shares surrendered on issuance date to satisfy tax withholding obligations	438,079
Closing stock price on issuance date | $ / shares	$ 14.03
Total share-based compensation earned, including the surrendered shares (in millions) | $	$ 7.8	[1]
Of the total common shares earned and issued, total common shares unrestricted at time of issuance	160,216
Of the total common shares earned and issued, total common shares restricted at time of issuance	277,863
Restricted common shares vesting date	Dec. 10, 2021
2019 Executive Management Incentive Plan [Member] | Equity Awards Issued in the First Quarter of 2020 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares earned under each incentive plan	665,552
Common shares surrendered on issuance date to satisfy tax withholding obligations	60,616
Common shares earned and issued under each incentive plan, net of common shares surrendered on issuance date to satisfy tax withholding obligations	604,936
Closing stock price on issuance date | $ / shares	$ 13.01
Total share-based compensation earned, including the surrendered shares (in millions) | $	$ 8.7	[2]
Of the total common shares earned and issued, total common shares unrestricted at time of issuance	426,553
Of the total common shares earned and issued, total common shares restricted at time of issuance	178,383
Restricted common shares vesting date	Dec. 11, 2020
Common shares surrendered on vesting date to satisfy tax withholding requirements resulting from vesting of restricted common shares	60,066

[1] Of the total 2020 share-based compensation, approximately $5.9 million was recorded as a liability as of December 31, 2020 and is included in accounts payable and other liabilities in the Company’s consolidated balance sheet at December 31, 2020. The remaining $1.9 million, which is subject to vesting on December 10, 2021 and excludes any restricted shares forfeited or vested prior to that date, will be recognized as share-based compensation expense proportionately throughout 2021. For the three and nine months ended September 30, 2021, the Company recognized approximately $0.5 million and $1.5 million, respectively, of share-based compensation expense related to restricted share awards.

[2] Of the total 2019 share-based compensation, approximately $1.2 million, which vested on December 11, 2020, was recognized as share-based compensation expense proportionately throughout 2020. For the three and nine months ended September 30, 2020, the Company recognized approximately $0.3 million and $0.9 million, respectively, of share-based compensation expense related to restricted share awards.