March 31,

2021

December 31,

2020

Gross operating lease liabilities

$

161,153

$

146,171

Less: imputed interest

(6,646)

(6,863)

Present value of operating lease liabilities

154,507

139,308

Less: current portion

(121,588)

(123,158)

Long-term operating lease liabilities

$

32,919

$

16,150