As of December 31,

2021

2020

(in thousands)

Vendor receivables

$

48,833

$

42,210

Asset resulting from contingent consideration

3,375

3,375

Prepaid expenses

13,116

11,152

Environmental receivables

1,119

1,238

Income tax receivable

3,340

803

Due from related parties

2,669

1,673

Other current assets

19,643

26,904

Total other current assets

$

92,095

$

87,355