Property and equipment, net consists of the following (in thousands):

 

Depreciation and amortization expense for the six months ended June 30, 2021 and 2020 was $5.4 million and $3.2 million, respectively.

The intangible assets consist of the following:

 

 

Amortization expense related to intangible assets for the six months ended June 30, 2021 and 2020 was $1.9 million and nil, respectively.

The following table presents the estimated future amortization expense of acquired amortizable intangible assets as of June 30, 2021 (in thousands):

 

Prepaid expenses and other current assets consist of the following (in thousands):

 

 

 

Property and equipment, net consists of the following (in thousands):

 

Depreciation and amortization expense for the years ended December 31, 2020 and 2019 was $7.4 million and $4.0 million, respectively.

Prepaid expenses and other current assets consist of the following (in thousands):