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Financial Instruments (Tables)
 6 Months Ended
Jun. 30, 2021
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents
The carrying values of cash, cash equivalents and restricted cash approximate fair values and are as follows (in thousands):
June 30,December 31,
 20212020
As Held:
Cash$242,377 $180,808 
Money market funds158,151 235,902 
$400,528 $416,710 
As Reported:
Cash and cash equivalents$203,956 $246,947 
Restricted cash196,572 169,763 
$400,528 $416,710 
Restrictions on Cash and Cash Equivalents
The carrying values of cash, cash equivalents and restricted cash approximate fair values and are as follows (in thousands):
June 30,December 31,
 20212020
As Held:
Cash$242,377 $180,808 
Money market funds158,151 235,902 
$400,528 $416,710 
As Reported:
Cash and cash equivalents$203,956 $246,947 
Restricted cash196,572 169,763 
$400,528 $416,710 

Restricted cash consisted of the following (in thousands):
June 30,December 31,
 20212020
Current:  
Restricted cash$59,288 $26,706 
Restricted cash related to PPA Entities1
1,296 25,764 
Restricted cash, current60,584 52,470 
Non-current:
Restricted cash120,780 286 
Restricted cash related to PPA Entities1
15,208 117,007 
Restricted cash, non-current135,988 117,293 
$196,572 $169,763 
1 We have VIEs that represent a portion of the condensed consolidated balances recorded within the "restricted cash" and other financial statement line items in the condensed consolidated balance sheets (see Note 11 - Portfolio Financings). In addition, the restricted cash held in the PPA II and PPA IIIb entities as of June 30, 2021, includes $34.6 million and $1.2 million of current restricted cash, respectively, and $72.8 million and $13.3 million of non-current restricted cash, respectively. The restricted cash held in the PPA II and PPA IIIb entities as of December 31, 2020, includes $20.3 million and $0.7 million of current restricted cash, respectively, and $88.4 million and $13.3 million of non-current restricted cash, respectively. These entities are not considered VIEs.