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Financial Statement Schedule I (Details 6) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Operating activities: |  |  |
Net Income (loss) | $ 173,316 | $ 243,887 | $ 45,565
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 94,217 | 82,627 | 80,821
Loss on disposal of property, plant and equipment | 1,801 | 1,478 | 3,613
Loss on change in fair value of derivatives | 12,196 | (19,656) | (10,764)
Allowance for doubtful debts | 3,673 | (8,528) | (975)
Equity in loss of unconsolidated investees | 643 | (487) | 3,064
Share-based compensation | 5,966 | 5,088 | 6,175
Changes in operating assets and liabilities: |  |  |
Inventories | 50,821 | (252,716) | 34,667
Accounts receivable trade | (63,352) | (73,777) | (11,814)
Amounts due from related parties | (99,893) | 480 | 5,288
Advances to suppliers | 7,967 | (3,622) | (5,747)
Prepaid expenses and other current assets | 36,745 | (38,523) | (2,333)
Other non-current assets | (22,355) | (8,446) | (4,420)
Accounts payable | (23,975) | 135,812 | 44,231
Advances from customers | (30,123) | 40,311 | 51,357
Amounts due to related parties | 47,522 | (2,166) | 14,492
Accrued warranty costs | 12,004 | 15,516 | (19,199)
Liability for uncertain tax positions | (1,111) | (1,613) | 2,495
Deferred taxes | (112,263) | 9,208 | 15,142
Settlement of derivatives | 24,878 | 17,192 | 5,147
Net cash provided by operating activities | 413,658 | 265,106 | 229,549
Investing activities: |  |  |
Decrease (increase) in restricted cash | (100,935) | (27,585) | (10,099)
Investment in subsidiaries | (84,389) | (72) | (4,278)
Purchase of property, plant and equipment | (90,905) | (49,660) | (23,132)
Funding of loans to subsidiaries | (196,783) |  |
Net cash used in investing activities | (999,104) | (116,049) | (37,509)
Financing activities: |  |  |
Proceeds from short-term borrowings | 1,436,950 | 928,879 | 768,381
Repayment of short-term borrowings | (1,308,235) | (1,045,596) | (1,073,503)
Proceeds from long-term borrowings | 487,228 | 56,989 | 149,832
Proceeds from issuance of warrants | 16,378 |  |
Proceeds from issuance of common shares offering |  | 115,009 | 50,000
Issuance costs paid for common shares offering |  | (6,091) | (2,113)
Proceeds from issuance of convertible notes |  | 150,000 |
Issuance cost paid on convertible notes | (39,297) |  |
Proceeds from exercise of stock options | 1,867 | 3,343 | 10,793
Net cash provided by (used in) financing activities | 619,483 | 191,947 | (104,900)
Effect of exchange rate changes | (30,501) | (19,711) | (858)
Net increase in cash and cash equivalents | 3,536 | 321,293 | 86,282
Cash and cash equivalents at the beginning of the year | 549,543 | 228,250 | 141,968
Cash and cash equivalents at the end of the year | 553,079 | 549,543 | 228,250
Supplemental disclosure of cash flow information: |  |  |
Interest paid | 49,619 | 47,227 | 47,344
Income taxes paid | 87,348 | 14,016 | 23,813
Parent Company |  |  |
Operating activities: |  |  |
Net Income (loss) | 171,861 | 239,502 | 31,659
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 32 | 1 | 5
Loss on disposal of property, plant and equipment |  | 4 |
Loss on change in fair value of derivatives | 13,571 |  |
Allowance for doubtful debts | 1,535 | 11,434 | 1,872
Equity in (earnings) loss of subsidiaries | (193,813) | (243,283) | (35,132)
Equity in loss of unconsolidated investees | 273 | 280 | 2,752
Share-based compensation | 5,966 | 5,088 | 6,175
Changes in operating assets and liabilities: |  |  |
Inventories | 296 | (286) | 2,828
Accounts receivable trade | 2,189 | (5,244) | 627
Amounts due from related parties | 228,284 | 3,905 | 85,993
Advances to suppliers | (226) | (11,836) | (283)
Prepaid expenses and other current assets | (7,106) | (2,260) | 8,312
Other non-current assets | (14,710) | (19,727) | 6,860
Accounts payable | 3 | (9) | 9
Advances from customers | 1,352 | (657) | (122)
Amounts due to related parties | 103,348 | (42,128) | (18,332)
Accrued warranty costs | (2,941) | 84 | (14,644)
Other current liabilities | 4,484 | 3,544 | (2,558)
Liability for uncertain tax positions | (1,111) | 633 | 142
Deferred taxes | 1,451 | 1,208 | 406
Settlement of derivatives | (3,950) |  |
Net cash provided by operating activities | 310,788 | (59,747) | 76,569
Investing activities: |  |  |
Decrease (increase) in restricted cash | (6,513) |  |
Investment in subsidiaries | (116,840) | (39,668) | (10,602)
Purchase of property, plant and equipment |  | (5) |
Funding of loans to subsidiaries | (550,776) | (128,213) |
Net cash used in investing activities | (674,129) | (167,886) | (10,602)
Financing activities: |  |  |
Proceeds from short-term borrowings | 10,000 |  |
Repayment of short-term borrowings |  | (12,246) | (55,754)
Proceeds from long-term borrowings | 364,680 |  |
Repayment of long-term borrowings |  | (16,393) | (53,670)
Payment for repurchase of convertible senior notes | 16,378 |  |
Proceeds from issuance of warrants | (918) |  |
Proceeds from issuance of common shares offering |  | 115,009 | 50,000
Issuance costs paid for common shares offering |  | (6,090) | (2,113)
Proceeds from issuance of convertible notes |  | 150,000 |
Issuance cost paid on convertible notes |  | (5,103) |
Proceeds from exercise of stock options | 1,867 | 3,342 | 10,793
Net cash provided by (used in) financing activities | 392,007 | 228,519 | (50,744)
Effect of exchange rate changes | 2,085 | (27,016) | 3,115
Net increase in cash and cash equivalents | 30,751 | (26,130) | 18,338
Cash and cash equivalents at the beginning of the year | 3,455 | 29,585 | 11,247
Cash and cash equivalents at the end of the year | 34,206 | 3,455 | 29,585
Supplemental disclosure of cash flow information: |  |  |
Interest paid | $ 15,299 | 3,942 |
Income taxes paid |  | $ 736 | $ 298

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- Definition Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
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- Definition The cash outflow to reacquire preferred stock originally issued and identified as a security that can be exchanged for another type of financial security. This repurchased stock is held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Total increases or decreases in the standard and extended product warranty liability during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The net amount of all increases and decreases in unrecognized tax benefits for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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