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Long-Term Debt (Tables)
 9 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Summary of Long-Term Debt
As atAs at
September 30, 2021December 31, 2020
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Revolving credit facility due through 2024326,167185,000
Term loan due in 202356,14664,568
Total principal382,313249,568
Less: unamortized discount and debt issuance costs(4,784)(6,607)
Total debt377,529242,961
Less: current portion(34,399)(10,858)
Long-term portion343,130232,103