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Recent Accounting Standards | 3 Months Ended
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Mar. 31, 2021
Accounting Changes And Error Corrections [Abstract] |
Recent Accounting Standards | (2) Recent Accounting Standards Accounting for Convertible Instruments The Company early adopted ASU 2020-06 effective as of January 1, 2021 using the modified retrospective method, which resulted in a cumulative-effect adjustment to the opening balance of retained earnings on the date of adoption, recorded as follows (in thousands):
| December 31, 2020 |  |  | Effect of the Adoption |  |  | January 1, 2021 |
Consolidated Balance Sheet | As Reported |  |  | of ASU 2020-06 |  |  | As Adjusted |
Deferred tax liabilities (assets) | $ | 8,211 |  |  | $ | (41,693 | ) |  | $ | (33,482 | )
Convertible senior notes, net |  | 486,366 |  |  |  | 148,546 |  |  |  | 634,912 |
Additional paid-in-capital |  | 763,051 |  |  |  | (107,810 | ) |  |  | 655,241 |
Retained earnings |  | 575,965 |  |  |  | 957 |  |  |  | 576,922 |
The following significant accounting changes occurred as result of the adoption of ASU 2020-06:
| (i) | Elimination of the cash conversion model. Under previous GAAP, instruments that may be partially settled in cash were in the scope of the “cash conversion” model, which required conversion features to be separately reported in equity. Upon the adoption of ASU 2020-06, the cash conversion model was eliminated and the Company no longer records conversion features in equity and instead accounts for its convertible senior notes as single units of debt. As a result, there is no longer a debt discount or subsequent amortization to be recognized as interest expense. Similarly, the Company no longer allocates a portion of the related issuance costs to equity. As a result of these changes, temporary differences between the Company’s book and tax bases have been eliminated and the Company no longer records any related net deferred tax liability.
| (ii) | Use of the “if-converted” method for calculating diluted earnings per share. Under previous GAAP, the Company utilized the “treasury stock” method for computing the diluted earnings per share impact of its convertible senior notes. Under the treasury stock method, only the excess of the average stock price of the Company’s class A common stock for the reporting period over the conversion price was used in determining the impact to the diluted earnings per share denominator. Upon the adoption of ASU 2020-06, the Company may no longer use the treasury stock method for instruments with flexible settlement arrangements. Instead, the Company is required to use the if-converted method, which requires all underlying shares be included in the denominator regardless of the average stock price for the reporting period, in addition to adding back to the numerator the related interest expense from the stated coupon and the amortization of issuance costs, if dilutive.
Accounting for income taxes The Company adopted Accounting Standards Update No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”) effective as of January 1, 2021. ASU 2019-12 simplifies the accounting for income taxes by eliminating certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities related to outside basis differences. ASU 2019-12 requires certain amendments to be applied prospectively and others retrospectively. The adoption of this guidance did not have a material impact on the Company’s consolidated financial position, results of operations, or cash flows. Prior periods have not been adjusted and no cumulative-effect adjustment to retained earnings was made.

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- Definition The entire disclosure for change in accounting principle. 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