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Recent Accounting Pronouncements
3 Months Ended
Mar. 31, 2021
Recent Accounting Pronouncements [Abstract]  
Recent Accounting Pronouncements 3.    Recent Accounting Pronouncements

Effective January 1, 2021, the Company adopted ASU 2016-13, Financial Instruments-Credit Losses (Topic 326):"Measurement of Credit Losses on Financial Instruments," which requires measurement and recognition of expected credit losses for most financial assets and certain other instruments. Unrealized losses on available-for-sale debt securities that are attributed to credit risk are recorded through earnings rather than to other comprehensive income. Credit losses relating to available-for-sale debt securities are now recorded through an allowance for credit losses. In addition, Topic 326 also provides new guidance related to the measurement of expected credit losses on the Company’s allowance for bad debt for accounts receivable, which is estimated upon assessment of various factors including historical collection experience, current and future economic market conditions and a review of the current aging status and financial condition of the Company’s customers. The Company adopted the new standard using a modified retrospective transition method, which required a cumulative-effect adjustment, if any, to the opening balance of retained earnings to be recognized on the date of adoption. The Company did not have any cumulative-effect adjustments as of the date of adoption.

Effective January 1, 2021, the Company adopted ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which enhances and simplifies various aspects of the income tax accounting guidance related to intra-period tax allocation, interim period accounting for enacted changes in tax law, and the year-to-date loss limitation in interim period tax accounting. ASU 2019-12 also amends other aspects of the guidance to reduce complexity in certain areas. The adoption did not have a material impact on the Company's financial statements and related disclosures.