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Stock-Based Compensation Plans and Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2022

Share-based Payment Arrangement [Abstract]

Schedule of performance incentive plans

The following is a summary of the status of the Company’s equity-classified iPIP plans and changes during the year ended December 31, 2022.

​	​	​	​	​
​	​	iPIP Investment Pool
​		2019-2020		2021-2022
Points at beginning of period		95.20		84.75
Granted	​	—	​	7.95
Forfeited		—		(0.95)
Points at end of period		95.20		91.75

​

The following is a summary of the status of the Company’s liability-classified iPIP plans and changes during the year ended December 31, 2022.

​

​	​	​	​	​	​	​
​	​	iPIP Investment Pool
​		2013‑2014		2015‑2016		2017‑2018
Points at beginning of period		80.17		70.40		75.34
Granted	​	—	​	—	​	—
Points at end of period		80.17		70.40		75.34

​

Schedule of changes in non-vested restricted stock units

Changes in non-vested restricted stock units (“Units”) during the year ended December 31, 2022 were as follows (number of shares and $ in thousands, except per share amounts):

​

​	​	​	​	​	​	​	​	​
​	​	​	​	Grant Date		​	Aggregate
​	​	Number	​	Fair Value		​	Intrinsic
​	​	of Shares	​	Per Share		​	Value
Nonvested at beginning of period	​	754	​	$	14.67	​	$	19,480
Granted	​	221	​	$	24.77	​		​
Vested	​	(316)	​	$	11.14	​		​
Forfeited	​	(25)	​	$	20.54	​	​	​
Nonvested at end of period		634	​	$	19.74	​	$	4,833

​

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Schedule Of Share-Based Compensation, Performance Incentive Plans, Activity [Table Text Block]

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- Definition

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

+ 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)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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