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Leases (Tables)
 6 Months Ended
Jun. 30, 2021
Leases [Abstract]  
Schedule Of Supplemental Cash Flow Related To Leases

Three months ended

Six months ended

June 30,

June 30,

2021

2020

2021

2020

Cash paid for operating lease liabilities

$

89,134

$

66,595

$

177,942

$

144,484

Operating lease assets obtained in exchange for operating lease liabilities

$

150,561

$

102,113

$

294,663

$

239,079

Derecognition of operating lease assets due to terminations or impairment

$

432

$

12,410

$

1,979

$

14,417