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Summary of Significant Accounting Policies
3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies
Note 2. Summary of Significant Accounting Policies
Adoption of Accounting Pronouncements

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40) ("ASU 2020-06"), which simplifies the accounting for convertible instruments. The guidance removes certain accounting models which separate the embedded conversion features from the host contract for convertible instruments, requiring bifurcation only if the convertible debt feature qualifies as a derivative under ASC 815 or for convertible debt issued at a substantial premium. The ASU removes certain settlement conditions required for equity contracts to qualify for the derivative scope exception, permitting more contracts to qualify for it. In addition, the guidance eliminates the treasury stock method to calculate diluted earnings per share for convertible instruments and requires the use of the if-converted method. The guidance also decreases interest expense due to the reversal of the remaining non-cash convertible debt discount. On January 1, 2022, we adopted this pronouncement using the modified retrospective approach to recognize our convertible notes as single liability instruments given they do not qualify as derivatives under ASC 815, nor were they issued at a substantial premium. Accordingly, as of January 1, 2022, we recorded a $161.4 million increase to debt, primarily as a result of the reversal of the remaining non-cash convertible debt discount, as well as a reduction of $307.6 million to additional paid in capital, which resulted in a cumulative effect on adoption of approximately $146.2 million to increase retained earnings.

Recent Accounting Pronouncements
In March 2020, the Financial Accounting Standards Board (“FASB") issued Accounting Standard Update (“ASU") No. 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions to the current guidance on contract modifications and hedging relationships to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates. Subsequently, in January 2021, the FASB issued ASU No. 2021-01, Reference Rate Reform (Topic 848), which presents amendments to clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. The guidance in both ASUs was effective upon issuance and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. We are currently evaluating the impact of the new guidance on our consolidated financial statements. The impact, if any, will be dependent on the terms of any future contract modifications related to a change in reference rate.