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Restructuring Charges (Tables)
12 Months Ended
Dec. 31, 2021
Restructuring Charges  
Schedule of changes to accrued liability balance related to restructuring charges

2020

2021

Pandemic

Property

Property

Other

(in thousands)

Restructuring

Restructuring

Restructuring

Restructuring

Total

Balance at December 31, 2020

    

$

201

    

$

    

$

    

$

    

$

201

Charges incurred

 

1,717

 

35

 

929

 

222

 

2,903

Payments

(1,918)

(35)

(929)

(222)

(3,104)

Balance at December 31, 2021

$

$

$

$

$

Schedule of restructuring charges by segment

    

Contract

Aftermarket

(in thousands)

Operations

Services

Other (1)

Total

Year ended December 31, 2021

Pandemic restructuring

$

616

$

145

$

956

$

1,717

2020 Property restructuring - other exit costs

35

35

2021 Property restructuring - other exit costs

929

929

Other restructuring

222

222

Total restructuring charges

$

1,545

$

145

$

1,213

$

2,903

Year ended December 31, 2020

Organizational restructuring

$

458

$

625

$

612

$

1,695

Pandemic restructuring

2,505

1,218

1,534

5,257

2020 Property restructuring

Loss on sale

915

915

Impairment loss

583

583

Total 2020 Property restructuring

1,498

1,498

Total restructuring charges

$

2,963

$

1,843

$

3,644

$

8,450

(1)Represents expense incurred within our corporate function and not directly attributable to our segments.
Schedule of restructuring charges by type

Years Ended December 31,

(in thousands)

2021

    

2020

Severance costs

Organizational restructuring

$

$

1,695

Pandemic restructuring

1,717

5,257

Total severance costs

1,717

6,952

Property disposal costs

Loss on sale

915

Impairment loss

583

Other exit costs

964

Total property disposal costs

 

964

 

1,498

Other restructuring costs

222

Total restructuring charges

$

2,903

$

8,450