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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Compensation Cost

The following table summarizes the stock-based compensation expense for restricted stock units (in thousands):

									Year Ended December 31,
Line Item															2020						2019						2018
Advisory services fee															$	2,672					$	2,468					$	2,277
Management fees															133						155						219
Corporate general and administrative - Premier															71						72						—
Corporate general and administrative - independent directors															130						208						243
															$	3,006					$	2,903					$	2,739

The following table summarizes the compensation expense for PSUs (in thousands):

									Year Ended December 31,
Line Item															2020						2019						2018
Advisory services fee															$	2,695					$	2,439					2,443

Summary of Restricted Stock Activity

A summary of our restricted stock activity is as follows (shares in thousands):

			Year Ended December 31,
			2020												2019												2018
			Number of Units						Weighted Average Price at Grant						Number of Units						Weighted Average Price at Grant						Number of Units						Weighted Average Price at Grant
Outstanding at beginning of year			497						$	11.89					441						$	10.91					420						$	11.87
Restricted shares granted			359						4.13						261						12.68						257						9.90
Restricted shares vested			(310)						9.81						(198)						10.75						(229)						11.54
Restricted shares forfeited			(10)						7.25						(7)						11.59						(7)						10.50
Outstanding at end of year			536						$	7.98					497						$	11.89					441						$	10.91

Summary of PSUs Activity

A summary of our PSU activity is as follows (shares in thousands):

			Year Ended December 31,
			2020												2019												2018
			Number of Units						Weighted Average Price at Grant						Number of Units						Weighted Average Price at Grant						Number of Units						Weighted Average Price at Grant
Outstanding at beginning of year			420						$	16.91					316						$	12.29					381						$	11.97
PSUs granted			225						3.51						223						19.96						197						13.43
PSUs canceled			(197)						13.43						(119)						10.42						(262)						12.67
Outstanding at end of year			448						$	11.71					420						$	16.91					316						$	12.29

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- Definition

Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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