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Fair Value of Assets and Liabilities
6 Months Ended
Jun. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Value of Assets and Liabilities
FAIR VALUE OF ASSETS AND LIABILITIES
The Company’s consolidated balance sheets reflect certain financial assets and liabilities at carrying value. The carrying value of certain debt instruments, if applicable, is net of unamortized discount. The following tables present the carrying values of those financial instruments and the estimated corresponding fair values at June 30, 2018 and December 31, 2017 (in thousands):

 
 
 
Estimated Fair Value Measurements at June 30, 2018
 
Carrying Value as of June 30, 2018
 
Total Fair Value
 
Level 1
 
Level 2
 
Level 3
Assets:
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
$
65,451

 
$
65,451

 
$
65,451

 
$

 
$

Restricted cash and investments
61,764

 
61,764

 
59,794

 
1,970

 

Liabilities:
 
 
 
 
 
 
 
 
 
Borrowings under senior credit facility
$
1,170,968

 
$
1,175,906

 
$

 
$
1,175,906

 
$

 5.875% Senior Notes due 2024
250,000

 
246,553

 

 
246,553

 

 5.125% Senior Notes
300,000

 
294,009

 

 
294,009

 

5.875% Senior Notes due 2022
250,000

 
253,740

 

 
253,740

 

        6.00% Senior Notes
350,000

 
339,493

 

 
339,493

 

Non-recourse debt
368,143

 
368,929

 

 
368,929

 

 
 
 
Estimated Fair Value Measurements at December 31, 2017
 
Carrying Value as of December 31, 2017
 
Total Fair Value
 
Level 1
 
Level 2
 
Level 3
Assets:
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
$
81,377

 
$
81,377

 
$
81,377

 
$

 
$

Restricted cash and investments
52,168

 
52,168

 
49,884

 
2,284

 

Liabilities:
 
 
 
 
 
 
 
 
 
Borrowings under senior credit facility
$
1,064,599

 
$
1,070,514

 
$

 
$
1,070,514

 
$

 5.875% Senior Notes due 2024
250,000

 
262,095

 

 
262,095

 

 5.125% Senior Notes
300,000

 
303,918

 

 
303,918

 

5.875% Senior Notes due 2022
250,000

 
258,338

 

 
258,338

 

        6.00% Senior Notes
350,000

 
362,835

 

 
362,835

 

Non-recourse debt
393,737

 
394,671

 

 
394,671

 


The fair values of the Company’s cash and cash equivalents, and restricted cash approximates the carrying values of these assets at June 30, 2018 and December 31, 2017. Restricted cash consists of money market funds, bank deposits, commercial paper and time deposits used for asset replacement funds and other funds contractually required to be maintained at the Company's Australian subsidiary. The fair value of the money market funds and bank deposits is based on quoted market prices (Level 1) and the fair value of commercial paper and time deposits is based on market prices for similar instruments (Level 2).
The fair values of the Company's 5.875% senior unsecured notes due 2022 ("5.875% Senior Notes due 2022"), 5.875% senior unsecured notes due 2024 ("5.875% Senior Notes due 2024"), 6.00% senior unsecured notes due 2026 (“6.00% Senior Notes”), and the 5.125% senior unsecured notes due 2023 ("5.125% Senior Notes"), although not actively traded, are based on published financial data for these instruments. The fair values of the Company's non-recourse debt related to the Washington Economic Development Finance Authority ("WEDFA") and the Company’s Australian subsidiary are estimated based on market prices of similar instruments. The fair value of borrowings under the senior credit facility is based on an estimate of trading value considering the Company’s borrowing rate, the undrawn spread and similar instruments.