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Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Summary of the Company's RSU and PRSU awards

​

​	​	​	​	​	​	​	​	​	​	​
​		RSU Awards					PRSU Awards
​	​	​		Weighted-Average		​	​		Weighted-Average
​	​	​		Grant-Date		​	​		Grant-Date
​		Shares		Fair Value			Shares		Fair Value
​	​	​	​	​	​	​	​	​	​	​
Non-vested at December 31, 2019		428,295	​	$	24.42		34,186	​	$	22.38
Granted		172,728	​		19.66		72,143	​		20.38
Vested		(241,246)	​		22.38		(35,149)	​		20.54
Forfeited		(5,545)	​		24.62		—	​		—
Non-vested at September 30, 2020		354,232	​	$	23.48		71,180	​	$	21.26
Vested but unissued at September 30, 2020		217,642	​	$	23.26		62,515	​	$	21.35

Phantom Share Units (PSUs) [Member]

Notes Tables

Summary of the Phantom Stock Plan

​

​	​	​	​	​	​
Phantom Stock Plan		Shares		Fair Value
Outstanding at December 31, 2019		109,226	​	$	21.61
Granted		10,392	​		14.58
Distributions		(890)	​		11.73
Outstanding at September 30, 2020		118,728	​	$	10.52
Vested at September 30, 2020		118,677	​	$	10.52

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