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Financial Instruments (Tables)
 3 Months Ended
Mar. 31, 2022
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 were as follows (in thousands):
March 31,December 31,
 20222021
As Held:
Cash$246,476 $318,080 
Money market funds247,420 297,034 
$493,896 $615,114 
As Reported:
Cash and cash equivalents$286,007 $396,035 
Restricted cash207,889 219,079 
$493,896 $615,114 
Restrictions on Cash and Cash Equivalents
The carrying values of cash, cash equivalents and restricted cash approximate fair values and were as follows (in thousands):
March 31,December 31,
 20222021
As Held:
Cash$246,476 $318,080 
Money market funds247,420 297,034 
$493,896 $615,114 
As Reported:
Cash and cash equivalents$286,007 $396,035 
Restricted cash207,889 219,079 
$493,896 $615,114 

Restricted cash consisted of the following (in thousands):
March 31,December 31,
 20222021
Current:  
Restricted cash$67,983 $89,462 
Restricted cash related to PPA Entities1
2,158 3,078 
Restricted cash, current70,141 92,540 
Non-current:
Restricted cash114,484 103,300 
Restricted cash related to PPA Entities1
23,264 23,239 
Restricted cash, non-current137,748 126,539 
$207,889 $219,079 
1 We have VIEs that represent a portion of the 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, PPA IIIa and PPA IIIb entities as of March 31, 2022, includes $41.2 million, $0.4 million and $1.5 million of current restricted cash, respectively, and $50.4 million, $6.1 million and $6.7 million of non-current restricted cash, respectively. PPA IIIa is no longer a VIE as of 03/31/2022. The restricted cash held in the PPA II and PPA IIIb entities as of December 31, 2021, includes $41.7 million and $1.2 million of current restricted cash, respectively, and $57.7 million and $6.7 million of non-current restricted cash, respectively. These entities are not considered VIEs.