During the year ended December 31, 2021, the Company recorded measurement period adjustments, including additional cash expected to be received in excess of the provisional amounts that were recognized at the acquisition date for the businesses acquired during 2020. Measurement period adjustments reflect new information obtained about facts and circumstances that existed as of the acquisition dates that, if known, would have affected the measurement of the amounts recognized as of the acquisition date. The impact to amortization expense not previously recognized related to these changes in estimates was not material.

tax-deductible

RU

Goodwill and intangible assets, net consisted of the following (in thousands):

 

 

The changes in the carrying amount of goodwill consisted of the following (in thousands):

 

Estimated amortization expense for intangible assets by year for the next five years and thereafter consisted of the following (in thousands):

 

The Company evaluates goodwill for impairment annually in the fourth quarter. In addition to the annual impairment evaluation, the Company evaluates at least quarterly whether events or circumstances have occurred in the period subsequent to the annual impairment testing which indicate that it is more likely than not an impairment loss has occurred. The Company evaluates its intangible assets that have finite useful lives whenever an event or change in circumstances indicates that the carrying value of the asset may not be recoverable.