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Long Term Retention Plan (Tables)
12 Months Ended
Dec. 31, 2020
Long Term Retention Plan [Abstract]  
Outstanding Long Term Retention Plans

December 31, 2020

December 31, 2019

December 31, 2018

Weighted-average

Weighted-average

Weighted-average

Aggregate

remaining

Aggregate

remaining

Aggregate

remaining

Intrinsic

contractual

Intrinsic

contractual

Intrinsic

contractual

value

life (years)

value

life (years)

value

life (years)

(In thousands)

Outstanding LTRP 2011

1,738

0.25

Outstanding LTRP 2012

2,861

0.25

3,460

0.75

Outstanding LTRP 2013

4,318

0.25

Outstanding LTRP 2014

5,086

0.25

6,037

0.75

Outstanding LTRP 2015

13,237

0.08

10,484

0.75

9,398

1.25

Outstanding LTRP 2016

34,795

0.62

19,091

1.25

15,343

1.75

Outstanding LTRP 2017

41,315

1.13

19,654

1.75

14,860

2.25

Outstanding LTRP 2018

23,233

1.64

10,727

2.25

8,135

2.88

Outstanding LTRP 2019

133,052

2.14

56,322

2.75

Outstanding LTRP 2020

153,113

2.67

Long Term Retention Plans Accrued Compensation Expense

Year ended December 31,

2020

2019

2018

(In thousands)

LTRP 2010

24

LTRP 2011

26

766

LTRP 2012

69

1,755

1,398

LTRP 2013

97

2,416

LTRP 2014

125

3,743

2,921

LTRP 2015

10,025

6,266

3,984

LTRP 2016

23,152

9,838

5,975

LTRP 2017

25,267

9,737

6,639

LTRP 2018

12,268

5,089

3,402

LTRP 2019

28,523

15,111

LTRP 2020

30,146

$                       129,575

$                        51,662

$                      27,525