BORROWINGS - Long term (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
BORROWINGS
Subtotal for long-term	$ 382,688	$ 562,827
Long-term borrowings from non-banking institutions	110,767	43,750
Long-term borrowings from non-banking institutions	$ 110,767	$ 43,750
Average interest rate on long-term borrowings (as a percent)	3.75%	4.75%
Future principal repayment on the long-term borrowings loans
2017	$ 697,685
2018	260,379
2019	198,171
2020	19,480
2021	3,460
Thereafter	11,965
Total	1,191,140
Less: future principal repayment related to long-term borrowings, current portion	(697,685)
Total long-term portion	493,455	$ 606,577
Unsecured
BORROWINGS
Long-term borrowings from non-banking institutions	61,000	30,005
Future principal repayment on the long-term borrowings loans
Total long-term portion		10,124
Borrowings secured by project assets and solar power systems
BORROWINGS
Long-term borrowings from non-banking institutions	49,767	13,745
Future principal repayment on the long-term borrowings loans
Total long-term portion	27,100	162,993
Borrowings secured by property, plant and equipment
Future principal repayment on the long-term borrowings loans
Total long-term portion	15,588	13,327
Borrowings secured by equity
Future principal repayment on the long-term borrowings loans
Total long-term portion	$ 340,000	$ 376,383

Carrying value as of the balance sheet date of amounts payable to banks which includes the sum of long-term debt.

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Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

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-Publisher FASB
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Weighted average interest rate of long-term debt outstanding.

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