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Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Maturities of lease liabilities: |  |  |  |  |
2021 (excluding the nine months ended September 30, 2021) | $ 5,668 |  | $ 5,668 |  |
2022 | 20,771 |  | 20,771 |  |
2023 | 18,101 |  | 18,101 |  |
2024 | 16,066 |  | 16,066 |  |
2025 | 15,180 |  | 15,180 |  |
Thereafter | 49,092 |  | 49,092 |  |
Total Lease Payments | 124,878 |  | 124,878 |  |
Less-Present Value Discount | (18,456) |  | (18,456) |  |
Present Value of Lease Liabilities | 106,422 |  | 106,422 |  | $ 97,162
Supplemental information related to leases: |  |  |  |  |
Cash paid for amounts included in the measurement of lease liabilities | 5,597 | $ 5,362 | 16,297 | $ 15,140 |
Lease right-of-use assets obtained in exchange for lease liabilities | $ 13,154 | $ 1,880 | $ 22,513 | $ 24,080 |

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