(Dollars in thousands)

Year Ended December 31,

2021

2020

2019

Lease Cost Components:

Amortization of ROU assets - finance leases

$

466

$

289

$

—

Interest on lease liabilities - finance leases

56

44

—

Operating lease cost (cost resulting from lease payments)

17,236

14,266

8,804

Short-term lease cost

446

404

494

Variable lease cost (cost excluded from lease payments)

2,768

1,081

430

Total lease cost

$

20,972

$

16,084

$

9,728

Supplemental Cash Flow and Other Information Related to Leases:

Finance lease - operating cash flows

$

56

$

42

$

—

Finance lease - financing cash flows

427

255

—

Operating lease - operating cash flows (fixed payments)

16,435

12,876

7,725

Operating lease - operating cash flows (net change asset/liability)

(12,790)

(9,123)

1,457

New ROU assets - operating leases

9,623

43,583

10,239

New ROU assets - finance leases

—

5,374

—

Weighted - average remaining lease term (years) - finance leases

6.41

7.40

—

Weighted - average remaining lease term (years) - operating leases

10.95

11.51

14.14

Weighted - average discount rate - finance leases

1.7%

1.7%

—

Weighted - average discount rate - operating leases

3.2%

3.3%

3.9%

Operating lease payments due:

2022

$

15,215

2023

14,510

2024

13,340

2025

11,932

2026

11,468

Thereafter

73,647

Total undiscounted cash flows

140,112

Discount on cash flows

(24,198)

Total operating lease liabilities

$

115,914