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Leases (Tables)
9 Months Ended
Sep. 30, 2022
Leases  
Summary of components of lease expense

The components of lease expense are as follows (in thousands):

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Three Months Ended September 30, 

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Nine Months Ended September 30, 

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​

2022

​

2021

    

2022

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​

2021

Operating lease expense (1)

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$

19,101

​

$

19,893

​

$

54,123

​

$

62,717

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(1)Includes short-term leases which are immaterial.
Summary of operating lease liabilities

Our operating lease liabilities are reported on the Condensed Consolidated Balance Sheets as follows (in thousands):

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​

​

​

​

​

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September 30, 

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December 31, 

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2022

​

​

2021

Accrued liabilities

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$

65,428

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$

61,587

Noncurrent operating lease liabilities, net of current portion

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97,314

​

 

98,059

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​

$

162,742

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$

159,646