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New accounting standards
 9 Months Ended
Sep. 30, 2021
Accounting Changes and Error Corrections [Abstract]  
Accounting Standards Update and Change in Accounting Principle New accounting standards
New standards recently adopted
In December 2019, the FASB issued Accounting Standards Update (ASU) No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU No. 2019-12 attempts to simplify aspects of accounting for franchise taxes and enacted changes in tax laws or rates, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The amendments in this ASU became effective for the Company beginning on January 1, 2021. The adoption of ASU No. 2019-12 did not have a material impact on the Company's consolidated financial statements.
New standards not yet adopted
In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU No. 2020-04 provides optional expedients and exceptions for applying U.S. generally accepted accounting principles to contract modifications and hedging relationships, subject to certain criteria, that reference LIBOR or another rate that is expected to be discontinued. The amendments in this ASU were effective beginning on March 12, 2020, and the Company may elect to apply the amendments prospectively through December 31, 2022. The Company is currently assessing the effect this guidance may have on its consolidated financial statements.