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LEASES (Tables)

9 Months Ended

Sep. 30, 2020

LEASES

Summary of components of lease expense

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

​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​
​	Three months ended September 30, 2020		​	Three months ended September 30, 2019		​	Nine months ended September 30, 2020		​	Nine months ended September 30, 2019
Operating lease cost:	​	​	​	​	​	​	​	​	​	​	​
Operating lease cost	$	4,152	​	$	3,627	​	$	12,228	​	$	11,294
Short-term lease cost	​	769	​	​	652	​	​	2,040	​	​	2,232
Variable lease cost	​	692	​	​	1,151	​	​	3,034	​	​	2,400
Total operating lease cost	$	5,613	​	$	5,430	​	$	17,302	​	$	15,926
​	​	​	​	​	​	​	​	​	​	​	​
Finance lease cost:	​	​	​	​	​	​	​	​	​	​	​
Amortization of right-of-use asset	$	534	​	$	570	​	$	1,628	​	$	1,749
Variable costs	​	198	​	​	244	​	​	655	​	​	802
Total finance lease cost	$	732	​	$	814	​	$	2,283	​	$	2,551

Summary of weighted-average remaining lease term and discount rate

The weighted average remaining lease terms and discount rates as of September 30, 2020 and December 31, 2019 are noted in the table below:

​

​	​	​	​	​	​
​	September 30, 2020		​	December 31, 2019
Weighted-average remaining lease term	​	​	​	​	​
Operating leases	​	6.0 years	​	​	6.5 years
Financing leases	​	10.5 years	​	​	11.7 years
​	​	​	​	​	​
Weighted-average discount rate	​	​	​	​	​
Operating leases	​	5.0%	​	​	5.0%
Financing leases	​	3.3%	​	​	n/a

Summary of maturities of lease liabilities

Maturities of lease liabilities as of September 30, 2020 were as follows (in thousands):

​

​	​	​
​	Operating Leases
2020 (excluding the nine months ended September 30, 2020)	$	3,014
2021	​	15,761
2022	​	14,170
2023	​	11,789
2024	​	10,466
Thereafter	​	19,885
Total lease payments	​	75,085
Less imputed interest	​	(10,640)
Total	$	64,445

​

Maturities of lease liabilities as of December 31, 2019 were as follows (in thousands):

​

​	​	​
​	Operating Leases
2020	$	14,526
2021	​	13,714
2022	​	12,787
2023	​	10,713
2024	​	9,671
Thereafter	​	18,354
Total lease payments	​	79,765
Less imputed interest	​	(12,195)
Total	$	67,570

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- Definition

The tabular disclosure of weighted-average remaining lease term and discount rate.

+ References

No definition available.

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- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

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- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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