TPI Composites (TPIC) 10-Q 6 May 21 2021 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Trading Symbol	TPIC
Entity Registrant Name	TPI Composites, Inc.
Entity Central Index Key	0001455684
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Small Business	false
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		36,711,525
Entity Address, State or Province	AZ
Entity File Number	001-37839
Entity Tax Identification Number	20-1590775
Entity Address, Address Line One	8501 N. Scottsdale Rd.
Entity Address, Address Line Two	Gainey Center II, Suite 100
Entity Address, Postal Zip Code	85253
City Area Code	480
Local Phone Number	305-8910
Entity Address, City or Town	Scottsdale
Entity Incorporation, State or Country Code	DE
Document Quarterly Report	true
Document Transition Report	false
Title of 12(b) Security	Common Stock, par value $0.01
Security Exchange Name	NASDAQ

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 136,236	$ 129,857
Restricted cash	336	339
Accounts receivable	130,417	132,768
Contract assets	216,035	216,928
Prepaid expenses	23,128	29,507
Other current assets	19,389	27,921
Inventories	11,829	10,839
Total current assets	537,370	548,159
Property, plant and equipment, net	212,129	209,001
Operating lease right of use assets	151,212	158,827
Other noncurrent assets	53,345	40,270
Total assets	954,056	956,257
Current liabilities:
Accounts payable and accrued expenses	291,947	295,992
Accrued warranty	45,956	50,852
Current maturities of long-term debt	53,294	32,551
Current operating lease liabilities	26,496	26,099
Contract liabilities	2,132	614
Total current liabilities	419,825	406,108
Long-term debt, net of debt issuance costs and current maturities	180,976	184,316
Noncurrent operating lease liabilities	150,289	155,925
Other noncurrent liabilities	8,358	8,873
Total liabilities	759,448	755,222
Commitments and contingencies (Note 12)
Stockholders’ equity:
Common shares, $0.01 par value, 100,000 shares authorized, 36,920 shares issued and 36,712 shares outstanding at March 31, 2021 and 100,000 shares authorized, 36,771 shares issued and 36,564 shares outstanding at December 31, 2020	369	368
Paid-in capital	353,201	349,472
Accumulated other comprehensive loss	(41,316)	(32,990)
Accumulated deficit	(111,513)	(109,716)
Treasury stock, at cost, 208 shares at March 31, 2021 and 207 shares at December 31, 2020	(6,133)	(6,099)
Total stockholders’ equity	194,608	201,035
Total liabilities and stockholders’ equity	$ 954,056	$ 956,257

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	36,920,000	36,771,000
Common stock, shares outstanding	36,712,000	36,564,000
Treasury stock, shares	208,000	207,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 404,680	$ 356,636
Cost of sales	383,056	348,475
Startup and transition costs	14,354	12,034
Total cost of goods sold	397,410	360,509
Gross profit (loss)	7,270	(3,873)
General and administrative expenses	8,922	9,496
Loss on sale of assets and asset impairments	1,297	1,918
Restructuring charges, net	258	117
Loss from operations	(3,207)	(15,404)
Other income (expense):
Interest expense, net	(2,704)	(1,771)
Foreign currency income (loss)	(3,727)	960
Miscellaneous income	739	695
Total other expense	(5,692)	(116)
Loss before income taxes	(8,899)	(15,520)
Income tax benefit	7,102	15,028
Net loss	$ (1,797)	$ (492)
Weighted-average common shares outstanding:
Basic	36,601	35,213
Diluted	36,601	35,213
Net loss per common share:
Basic	$ (0.05)	$ (0.01)
Diluted	$ (0.05)	$ (0.01)

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (1,797)	$ (492)
Other comprehensive income (loss):
Foreign currency translation adjustments	(5,291)	(9,224)
Unrealized loss on hedging derivatives, net of taxes of $651 and $2,039, respectively	(3,035)	(7,669)
Comprehensive income (loss)	$ (10,123)	$ (17,385)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Unrealized gain (loss) on hedging derivatives	$ 651	$ 2,039

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock, at Cost [Member]
Beginning balance at Dec. 31, 2019	$ 205,050	$ 353	$ 322,906	$ (23,612)	$ (90,689)	$ (3,908)
Beginning balance, shares at Dec. 31, 2019		35,326
Net loss	(492)				(492)
Share-based compensation expense	2,970		2,970
Issuances under share-based compensation plan	862	$ 1	861
Issuances under share-based compensation plan, shares		109
Common stock repurchased for treasury	(459)					(459)
Other comprehensive loss	(16,893)			(16,893)
Ending balance at Mar. 31, 2020	191,038	$ 354	326,737	(40,505)	(91,181)	(4,367)
Ending balance, shares at Mar. 31, 2020		35,435
Beginning balance at Dec. 31, 2020	201,035	$ 368	349,472	(32,990)	(109,716)	(6,099)
Beginning balance, shares at Dec. 31, 2020		36,771
Net loss	(1,797)				(1,797)
Share-based compensation expense	2,494		2,494
Issuances under share-based compensation plan	1,236	$ 1	1,235
Issuances under share-based compensation plan, shares		149
Common stock repurchased for treasury	(34)					(34)
Other comprehensive loss	(8,326)			(8,326)
Ending balance at Mar. 31, 2021	$ 194,608	$ 369	$ 353,201	$ (41,316)	$ (111,513)	$ (6,133)
Ending balance, shares at Mar. 31, 2021		36,920

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (1,797)	$ (492)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	11,609	11,028
Loss on sale of assets and asset impairments	1,297	1,918
Restructuring charges, net	258	117
Share-based compensation expense	2,399	2,942
Amortization of debt issuance costs	114	56
Deferred income taxes	(11,574)	(17,612)
Changes in assets and liabilities:
Accounts receivable	(428)	50,328
Contract assets and liabilities	(132)	(32,574)
Operating lease right of use assets and operating lease liabilities	2,376	2,018
Inventories	(1,129)	(3,515)
Prepaid expenses	6,105	(4,558)
Other current assets	8,302	4,552
Other noncurrent assets	(1,526)	167
Accounts payable and accrued expenses	(3,724)	(17,557)
Accrued warranty	(4,896)	3,889
Other noncurrent liabilities	(514)	1,861
Net cash provided by operating activities	6,740	2,568
Cash flows from investing activities:
Purchases of property, plant and equipment	(18,786)	(26,983)
Net cash used in investing activities	(18,786)	(26,983)
Cash flows from financing activities:
Proceeds from revolving loans		50,000
Net repayments of accounts receivable financing		(101)
Principal repayments of finance leases	(1,406)	(1,492)
Net proceeds from other debt	18,695	16,505
Debt issuance costs		(183)
Proceeds from exercise of stock options	1,216	812
Repurchase of common stock including shares withheld in lieu of income taxes	(34)	(459)
Net cash provided by financing activities	18,471	65,082
Impact of foreign exchange rates on cash, cash equivalents and restricted cash	(49)	(1,806)
Net change in cash, cash equivalents and restricted cash	6,376	38,861
Cash, cash equivalents and restricted cash, beginning of year	130,196	71,749
Cash, cash equivalents and restricted cash, end of period	136,572	110,610
Supplemental cash flow information:
Cash paid for interest	2,617	1,773
Cash paid for income taxes, net of refunds	5,130	3,414
Noncash investing and financing activities:
Right of use assets obtained in exchange for new operating lease liabilities	1,245	55,156
Accrued capital expenditures in accounts payable	6,975	14,669
Reconciliation of Cash, Cash Equivalents and Restricted Cash:
Cash and cash equivalents	129,857	70,282
Restricted cash	$ 339	992
Restricted cash included within other noncurrent assets		$ 475
Restricted Cash, Noncurrent, Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent
Cash, cash equivalents and restricted cash, beginning of year	$ 130,196	$ 71,749
Cash and cash equivalents	136,236	109,473
Restricted cash	$ 336	662
Restricted cash included within other noncurrent assets		$ 475
Restricted Cash, Noncurrent, Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent
Cash, cash equivalents and restricted cash, end of period	$ 136,572	$ 110,610

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Note 1. Basis of Presentation The condensed consolidated financial statements included herein have been prepared by us without audit, pursuant to the rules and regulations of the SEC and should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2020 included in our Annual Report on Form 10-K. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (GAAP) have been condensed or omitted, as permitted by the SEC, although we believe the disclosures that are made are adequate to make the information presented herein not misleading. The accompanying condensed consolidated financial statements reflect, in the opinion of our management, all normal recurring adjustments necessary to present fairly our financial position at March 31, 2021, and the results of our operations, comprehensive income (loss) and cash flows for the periods presented. Interim results for the three months ended March 31, 2021 are not necessarily indicative of the results to be expected for the full years. Certain prior period amounts in the condensed consolidated financial statements and accompanying notes have been reclassified to conform to the current period’s presentation. The preparation of these condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The accompanying condensed consolidated financial statements include the accounts of TPI Composites, Inc. and all of our majority owned subsidiaries. All significant intercompany transactions and balances have been eliminated. References to TPI Composites, Inc, the “Company,” “we,” “us” or “our” in these notes refer to TPI Composites, Inc. and its consolidated subsidiaries. Accounting Pronouncements Recently Adopted Accounting Pronouncements Convertible Instruments In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. This ASU is effective for all public business entities (other than smaller reporting companies) for fiscal years beginning after December 15, 2021, with early adoption permitted for fiscal years beginning after December 15, 2020 and can be adopted on either a fully retrospective or modified retrospective basis. An entity should adopt the guidance at the beginning of its annual fiscal year. We adopted this standard on January 1, 2021 on a modified retrospective basis and it did not have a material effect on our condensed consolidated financial statements. Recently Issued Accounting Pronouncements Reference Rate Reform In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting Reference Rate Reform (Topic 848): Scope

Revenue From Contracts with Cus

Revenue From Contracts with Customers	3 Months Ended
	Mar. 31, 2021
Revenue From Contract With Customer [Abstract]
Revenue From Contracts with Customers	Note 2. Revenue From Contracts with Customers For a detailed discussion of our revenue recognition policy, refer to the discussion in Note 1, Summary of Operations and Summary of Significant Accounting Policies – (c) Revenue Recognition The following tables represents the disaggregation of our net sales revenue by product for each of our reportable segments: Three Months Ended March 31, 2021 U.S. Asia Mexico EMEA India Total (in thousands) Wind blade sales $ 39,627 $ 72,503 $ 108,442 $ 111,027 $ 47,580 $ 379,179 Precision molding and assembly systems sales — 3,964 4,963 — — 8,927 Transportation sales 6,424 — 1,707 — — 8,131 Other sales 3,235 461 3,347 1,339 61 8,443 Total net sales $ 49,286 $ 76,928 $ 118,459 $ 112,366 $ 47,641 $ 404,680 Three Months Ended March 31, 2020 U.S. Asia Mexico EMEA India Total (in thousands) Wind blade sales $ 35,933 $ 85,876 $ 115,186 $ 88,481 $ 10,861 $ 336,337 Precision molding and assembly systems sales — 5,061 1,702 — — 6,763 Transportation sales 6,679 — 210 — — 6,889 Other sales 4,819 200 1,152 476 — 6,647 Total net sales $ 47,431 $ 91,137 $ 118,250 $ 88,957 $ 10,861 $ 356,636 For a further discussion regarding our operating segments, see Note 14, Segment Reporting Contract Assets and Liabilities Contract assets consist of the amount of revenue recognized over time for performance obligations in production where control has transferred to the customer but the contract does not yet allow for the customer to be billed. Typically, customers are billed when the product finishes production and meets the technical specifications contained in the contract. The majority of the contract asset balance relates to materials procured based on customer specifications. The contract assets are recorded as current assets in the condensed consolidated balance sheets. Contract liabilities consist of advance payments in excess of revenue earned. These amounts primarily represent progress payments received as precision molding and assembly systems are being manufactured. The contract liabilities are recorded as current liabilities in the condensed consolidated balance sheets and are reduced as we record revenue over time. These contract assets and liabilities are reported on the condensed consolidated balance sheets net on a contract-by-contract basis at the end of each reporting period. Contract assets and contract liabilities consisted of the following: March 31, December 31, 2021 2020 $ Change (in thousands) Gross contract assets $ 221,938 $ 223,428 $ (1,490 ) Less: reclassification from contract liabilities (5,903 ) (6,500 ) 597 Contract assets $ 216,035 $ 216,928 $ (893 ) March 31, December 31, 2021 2020 $ Change (in thousands) Gross contract liabilities $ 8,035 $ 7,114 $ 921 Less: reclassification to contract assets (5,903 ) (6,500 ) 597 Contract liabilities $ 2,132 $ 614 $ 1,518 Contract assets decreased by $0.9 million from December 31, 2020 to March 31, 2021 due to a decrease in customer specific material purchases and incremental unbilled production during the three months ended March 31, 2021. Contracts liabilities increased by $1.5 million from December 31, 2020 to March 31, 2021 primarily due to amounts billed to a customer in advance of the production of precision molding and assembly systems during the three months ended March 31, 2021. For the three months ended March 31, 2021, we recognized $0.1 million of revenue related to precision molding and assembly systems and wind blades, which was included in the corresponding contract liability balance at the beginning of the period. Performance Obligations Remaining performance obligations represent the transaction price for which work has not been performed and excludes any unexercised contract options. The transaction price includes estimated variable consideration as determined based on the estimated production output within the range of the contractual guaranteed minimum volume obligations and production capacity. As of March 31, 2021, the aggregate amount of the transaction price allocated to the remaining performance obligations to be satisfied in future periods was approximately $3.5 billion. We estimate that we will recognize the remaining performance obligations as revenue as follows: $ % of Total (in thousands) Year Ending December 31, Remainder of 2021 $ 1,332,175 38.6 % 2022 1,426,379 41.3 2023 613,392 17.8 2024 78,353 2.3 Total remaining performance obligations $ 3,450,299 100.0 % For the three months ended March 31, 2021, net revenue recognized from our performance obligations satisfied in previous periods decreased by $8.5 million. The current year decrease primarily relates to changes in certain of our estimated total contract values and related direct costs to complete the performance obligations.

Significant Risks and Uncertain

Significant Risks and Uncertainties	3 Months Ended
	Mar. 31, 2021
Risks And Uncertainties [Abstract]
Significant Risks and Uncertainties	Note 3. Significant Risks and Uncertainties Our revenues and receivables are earned from a small number of customers. As such, our production levels are dependent on these customers’ orders. See Note 13, Concentration of Customers We may be required to reinstate temporary production suspensions or volume reductions at our manufacturing facilities to the extent there are new resurgences of COVID-19 cases in the regions where we operate or there is an outbreak of positive COVID-19 cases in any of our manufacturing facilities. In addition, our global supply chain may in the future be adversely affected if the COVID-19 pandemic persists. We maintain our U.S. cash in bank deposit and money market accounts that, at times, exceed U.S. federally insured limits. U.S. bank accounts are guaranteed by the Federal Deposit Insurance Corporation (FDIC) in an amount up to $250,000 during 2021 and 2020. U.S. money market accounts are not guaranteed by the FDIC. At March 31, 2021 and December 31, 2020, we had $97.0 million and $68.9 million, respectively, of cash in bank deposit and money market accounts in high quality U.S. banks, which was in excess of FDIC limits. We have not experienced losses in any such accounts. We also maintain cash in bank deposit accounts outside the U.S. with no insurance. At March 31, 2021, this included $32.7 million in China, $3.5 million in Turkey, $1.8 million in India, $0.8 million in Mexico and $0.4 million in other countries. As of December 31, 2020, this included $47.4 million in China, $6.0 million in Turkey, $5.0 million in India, $2.1 million in Mexico and $0.5 million in other countries. We have not experienced losses in these accounts. In addition, at March 31, 2021 and December 31, 2020, we had short-term deposits in interest bearing accounts of $0.3 million in both periods in China, which are reported as restricted cash in our condensed consolidated balance sheets. Certain of our debt agreements are either tied to LIBOR or the Euro Interbank Offered Rate (EURIBOR) and certain of them have associated interest rate hedges. Due to the relatively low LIBOR and EURIBOR rates in effect as of March 31, 2021, a 10% change in the LIBOR or EURIBOR rate would not have had a material impact on our future earnings, fair values or cash flows.

Accrued Warranty

Accrued Warranty	3 Months Ended
	Mar. 31, 2021
Product Warranties Disclosures [Abstract]
Accrued Warranty	Note 4. Accrued Warranty The warranty accrual activity for the periods noted consisted of the following: Three Months Ended March 31, 2021 2020 (in thousands) Warranty accrual at beginning of period $ 50,852 $ 47,639 Accrual during the period 4,847 3,865 Cost of warranty services provided during the period (7,571 ) (3,215 ) Changes in estimate for pre-existing warranties, including expirations during the period (2,172 ) 3,239 Warranty accrual at end of period $ 45,956 $ 51,528

Long-Term Debt, Net of Debt Iss

Long-Term Debt, Net of Debt Issuance Costs and Current Maturities	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Long-Term Debt, Net of Debt Issuance Costs and Current Maturities	Note 5. Long-Term Debt, Net of Debt Issuance Costs and Current Maturities Long-term debt, net of debt issuance costs and current maturities, consisted of the following: March 31, December 31, 2021 2020 (in thousands) Senior revolving loan—U.S. $ 171,154 $ 171,154 Unsecured financing—EMEA 50,211 30,040 Equipment financing—EMEA 3,107 4,335 Equipment finance lease—Mexico 7,083 8,038 Equipment finance lease—EMEA 3,458 4,119 Other equipment finance leases 194 232 Total debt - principal 235,207 217,918 Less: Debt issuance costs (937 ) (1,051 ) Total debt, net of debt issuance costs 234,270 216,867 Less: Current maturities of long-term debt (53,294 ) (32,551 ) Long-term debt, net of debt issuance costs and current maturities $ 180,976 $ 184,316

Share-Based Compensation Plans

Share-Based Compensation Plans	3 Months Ended
	Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation Plans	Note 6. Share-Based Compensation Plans During the three months ended March 31, 2021, we issued to certain employees an aggregate of 145,643 timed-based restricted stock units (RSUs), 58,396 performance-based restricted stock units (PSUs) that vest upon achievement of a cumulative, three-year Adjusted EBITDA target measured from January 1, 2021 through December 31, 2023, and 79,784 PSUs that vest upon achievement of certain stock price hurdles for the period of the grant date through December 31, 2023. All of the time-based RSUs vest on the third anniversary date of the grant date. Each of the time-based and performance-based awards are subject to the recipient ’s continued service with us , the terms and conditions of the 2015 Plan and the applicable award agreement. The share-based compensation expense recognized in the condensed consolidated statements of operations was as follows: Three Months Ended March 31, 2021 2020 (in thousands) Cost of goods sold $ 203 $ 171 General and administrative expenses 2,196 2,771 Total share-based compensation expense $ 2,399 $ 2,942 The share-based compensation expense recognized by award type was as follows: Three Months Ended March 31, 2021 2020 (in thousands) RSUs $ 1,255 $ 956 Stock options 618 1,653 PSUs 526 333 Total share-based compensation expense $ 2,399 $ 2,942

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	Note 7. Leases We have operating and finance leases for our manufacturing facilities, warehouses, offices, automobiles and certain of our machinery and equipment. Our leases have remaining lease terms of between one and 15 years, some of which may include options to extend the leases up to five years. The components of lease cost were as follows: Three Months Ended March 31, 2021 2020 (in thousands) Total operating lease cost $ 9,716 $ 8,571 Finance lease cost Amortization of assets under finance leases $ 900 $ 1,547 Interest on finance leases 189 279 Total finance lease cost $ 1,089 $ 1,826 Total lease liabilities as of March 31, 2021 were as follows: Operating Finance Leases Leases (in thousands) Current operating lease liabilities $ 26,496 $ — Current maturities of long-term debt — 5,989 Noncurrent operating lease liabilities 150,289 — Long-term debt, net of debt issuance costs and current maturities — 4,746 Total lease liabilities $ 176,785 $ 10,735 As of March 31, 2021, the cost and accumulated depreciation of property, plant and equipment that we are leasing under finance lease arrangements were $27.5 million and $12.8 million, respectively. As of December 31, 2020, the cost and accumulated depreciation of property, plant and equipment that we are leasing under finance lease arrangements were $28.5 million and $12.5 million, respectively. Future minimum lease payments under noncancelable leases as of March 31, 2021 were as follows: Operating Finance Leases Leases (in thousands) Year Ending December 31, Remainder of 2021 $ 26,297 $ 4,565 2022 32,414 5,771 2023 30,585 871 2024 26,903 224 2025 26,721 7 Thereafter 98,447 — Total future minimum lease payments 241,367 11,438 Less: interest (64,582 ) (703 ) Total lease liabilities $ 176,785 $ 10,735 Supplemental cash flow information related to leases was as follows: Three Months Ended March 31, 2021 2020 (in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 9,250 $ 7,508 Operating cash flows from finance leases 189 279 Financing cash flows from finance leases 1,406 1,492 Other information related to leases was as follows: March 31, December 31, 2021 2020 Weighted-Average Remaining Lease Term (In Years): Operating leases 7.5 7.7 Finance leases 2.0 2.2 Weighted-Average Discount Rate: Operating leases 7.9 % 7.9 % Finance leases 6.4 % 6.4 % As of March 31, 2021, there were no material additional leases related to our manufacturing facilities, warehouses, offices, automobiles or our machinery and equipment which have not yet commenced.

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Financial Instruments	Note 8. Financial Instruments Interest Rate Swap We use interest rate swap contracts to mitigate our exposure to interest rate fluctuations associated with our U.S. senior revolving credit agreement (the Credit Agreement). We do not use such swap contracts for speculative or trading purposes. As of March 31, 2021, no interest rate swaps originally designated for hedge accounting were de-designated or terminated. No ineffectiveness on our interest rate swaps was recognized as of March 31, 2021, and none is anticipated over the remaining term of the agreement. Foreign Exchange Forward Contracts We use foreign exchange forward contracts to mitigate our exposure to fluctuations in exchange rates between the functional currencies of our subsidiaries and the other currencies in which they transact. We do not use such forward contracts for speculative or trading purposes. Mexican Peso All of our remaining outstanding foreign exchange forward contracts (excluding those with call options) expired during the three months ended March 31, 2021. As of December 31, 2020, the notional values associated with our foreign exchange forward contracts qualifying as cash flow hedges were approximately 0.3 billion Mexican Pesos (approximately $14.0 million). With regards to our foreign exchange call option contracts, for the three months ended March 31, 2021, $0.7 million of premium amortization was recorded through cost of sales within our condensed consolidated statements of operations. The net income (loss) recognized in accumulated other comprehensive loss in our condensed consolidated statements of changes in stockholders’ equity for our foreign exchange call option contracts is expected to be recognized in cost of sales in our condensed consolidated statements of operations during the next nine months. As of March 31, 2021 and December 31, 2020, the notional values associated with our foreign exchange call option contracts qualifying as cash flow hedges were approximately 1.4 billion Mexican Pesos (approximately $68.1 million) and approximately 0.4 billion Mexican Pesos (approximately $17.3 million), respectively. Chinese Renminbi With regards to our balance sheet hedges, for the three months ended March 31, 2021, $0.1 million in gains were recorded through foreign currency loss within our condensed consolidated statements of operations. The fair values and location of our financial instruments in our condensed consolidated balance sheets were as follows: Condensed Consolidated March 31, December 31, Financial Instrument Balance Sheet Line Item 2021 2020 (in thousands) Foreign exchange forward contracts Other current assets 1,693 5,832 Foreign exchange forward contracts Accounts payable and accrued expenses 1,283 2,096 Interest rate swap Other noncurrent liabilities 3,818 4,414 The following table presents the pretax amounts reclassified from accumulated other comprehensive loss into our condensed consolidated statements of operations: Accumulated Other Condensed Three Months Ended Comprehensive Consolidated Statement March 31, Loss Component of Operations Line Item 2021 2020 (in thousands) Foreign exchange forward contracts Cost of sales $ (2,002 ) $ (222 )

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Note 9. Income Taxes The income tax benefit for the three months ended March 31, 2021 was lower than for the corresponding period ended March 31, 2020 primarily due to the earnings mix by jurisdiction in 2021 as compared to 2020. We do not record a deferred tax liability related to unremitted foreign earnings as we maintain our assertion to indefinitely reinvest our unremitted foreign earnings. No changes in tax law occurred during the quarter which have a material impact on our income tax provision.

Net Income (Loss) Per Common Sh

Net Income (Loss) Per Common Share Calculation	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Net Income (Loss) Per Common Share Calculation	Note 10. Net Income (Loss) Per Common Share Calculation Basic net income (loss) per common share is computed by dividing the net income (loss) by the weighted-average number of common shares outstanding during a period. Diluted net income per common share is computed by giving effect to all potentially dilutive securities, unless there is a net loss for the period and/or performance-based awards which are not included until performance conditions are met. In computing diluted net income per common share, we use the treasury stock method. The table below reflects the calculation of the weighted-average number of common shares outstanding, using the treasury stock method, used in computing basic and diluted net income (loss) per common share: Three Months Ended March 31, 2021 2020 (in thousands) Basic weighted-average shares outstanding 36,601 35,213 Effect of dilutive awards — — Diluted weighted-average shares outstanding 36,601 35,213 For the three months ended March 31, 2021 and 2020, approximately 2,040,000 and 890,000 potentially dilutive shares, respectively, were excluded from the calculation due to net losses. In addition, for the three months ended March 31, 2020, approximately 66,000 share-based compensation awards were excluded from the computation of net income (loss) per common share because their effect would be anti-dilutive. Certain performance-based restricted stock units have been excluded from the computation of diluted shares outstanding for the 2021 and 2020 periods presented as the performance conditions had not yet been met.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Stockholders Equity	Note 11. Stockholders’ Equity Accumulated Other Comprehensive Loss The following tables presents the changes in accumulated other comprehensive loss (AOCL) by component: Three Months Ended March 31, 2021 Foreign Foreign currency exchange translation Interest rate forward Total adjustments swap contracts AOCL (in thousands) Balance at December 31, 2020 $ (30,111 ) $ (3,443 ) $ 564 $ (32,990 ) Other comprehensive income (loss) before reclassifications (5,291 ) 597 (2,281 ) (6,975 ) Amounts reclassified from AOCL — — (2,002 ) (2,002 ) Net tax effect — (139 ) 790 651 Net current period other comprehensive income (loss) (5,291 ) 458 (3,493 ) (8,326 ) Balance at March 31, 2021 $ (35,402 ) $ (2,985 ) $ (2,929 ) $ (41,316 ) Three Months Ended March 31, 2020 Foreign Foreign currency exchange translation Interest rate forward Total adjustments swap contracts AOCL (in thousands) Balance at December 31, 2019 $ (22,012 ) $ (2,145 ) $ 545 $ (23,612 ) Other comprehensive income (loss) before reclassifications (9,223 ) (2,550 ) (6,936 ) (18,709 ) Amounts reclassified from AOCL — — (222 ) (222 ) Net tax effect — 535 1,503 2,038 Net current period other comprehensive income (loss) (9,223 ) (2,015 ) (5,655 ) (16,893 ) Balance at March 31, 2020 $ (31,235 ) $ (4,160 ) $ (5,110 ) $ (40,505 )

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 12. Commitments and Contingencies Legal Proceedings From time to time, we are party to various lawsuits, claims, and other legal proceedings that arise in the ordinary course of business, some of which may not be covered by insurance. Upon resolution of any pending legal matters, we may incur charges in excess of presently established reserves. Our management does not believe that any such charges would, individually or in the aggregate, have a material adverse effect on our financial condition, results of operations or cash flows.

Concentration of Customers

Concentration of Customers	3 Months Ended
	Mar. 31, 2021
Risks And Uncertainties [Abstract]
Concentration of Customers	Note 13. Concentration of Customers Revenues from certain customers (in thousands) in excess of 10 percent of our total consolidated revenues are as follows: Three Months Ended March 31, 2021 2020 Customer Revenues % of Total Revenues % of Total Vestas $ 169,218 41.8 % $ 157,412 44.1 % GE 104,852 25.9 % 100,132 28.1 % Nordex 76,543 18.9 % 53,257 14.9 % Trade accounts receivable from certain customers in excess of 10 percent of our total consolidated trade accounts receivable are as follows: March 31, December 31, 2021 2020 Customer % of Total % of Total Vestas 26.7 % 35.0 % Nordex 44.3 % 40.8 % Enercon 11.2 % 8.3 %

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Segment Reporting	Note 14. Segment Reporting Our operating segments are defined geographically into five geographic operating segments—(1) the United States (U.S.), (2) Asia, (3) Mexico, (4) EMEA and (5) India. For a detailed discussion of our operating segments, refer to the discussion in Note 19, Segment Reporting All of our segments operate in their local currency except for the Mexico and Asia segments, which both include a U.S. parent company, and India and Switzerland, which operate in the U.S. dollar. The following tables set forth certain information regarding each of our segments: Three Months Ended March 31, 2021 2020 (in thousands) Net sales by segment: U.S. $ 49,286 $ 47,431 Asia 76,928 91,137 Mexico 118,459 118,250 EMEA 112,366 88,957 India 47,641 10,861 Total net sales $ 404,680 $ 356,636 Net sales by geographic location (1) United States $ 49,286 $ 47,431 China 76,928 91,137 Mexico 118,459 118,250 Turkey 112,366 88,957 India 47,641 10,861 Total net sales $ 404,680 $ 356,636 Income (loss) from operations: U.S. (2) $ (11,620 ) $ (15,586 ) Asia 2,709 5,072 Mexico (4,024 ) (1,768 ) EMEA 9,788 2,664 India (60 ) (5,786 ) Total loss from operations $ (3,207 ) $ (15,404 ) March 31, December 31, 2021 2020 (in thousands) Property, plant and equipment, net: U.S. $ 32,884 $ 31,811 Asia (China) 43,771 46,075 Mexico 81,857 78,813 EMEA (Turkey) 23,890 28,312 India 29,727 23,990 Total property, plant and equipment, net $ 212,129 $ 209,001 (1) Net sales are attributable to countries based on the location where the product is manufactured or the services are performed. (2) The losses from operations in our U.S. segment includes corporate general and administrative costs of $8.9 million and $9.5 million for the three months ended March 31, 2021 and 2020, respectively.

Basis of Presentation and Recen

Basis of Presentation and Recently Issued Accounting Pronouncements (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	The condensed consolidated financial statements included herein have been prepared by us without audit, pursuant to the rules and regulations of the SEC and should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2020 included in our Annual Report on Form 10-K. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (GAAP) have been condensed or omitted, as permitted by the SEC, although we believe the disclosures that are made are adequate to make the information presented herein not misleading. The accompanying condensed consolidated financial statements reflect, in the opinion of our management, all normal recurring adjustments necessary to present fairly our financial position at March 31, 2021, and the results of our operations, comprehensive income (loss) and cash flows for the periods presented. Interim results for the three months ended March 31, 2021 are not necessarily indicative of the results to be expected for the full years. Certain prior period amounts in the condensed consolidated financial statements and accompanying notes have been reclassified to conform to the current period’s presentation. The preparation of these condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The accompanying condensed consolidated financial statements include the accounts of TPI Composites, Inc. and all of our majority owned subsidiaries. All significant intercompany transactions and balances have been eliminated. References to TPI Composites, Inc, the “Company,” “we,” “us” or “our” in these notes refer to TPI Composites, Inc. and its consolidated subsidiaries.
Accounting Pronouncements	Accounting Pronouncements Recently Adopted Accounting Pronouncements Convertible Instruments In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. This ASU is effective for all public business entities (other than smaller reporting companies) for fiscal years beginning after December 15, 2021, with early adoption permitted for fiscal years beginning after December 15, 2020 and can be adopted on either a fully retrospective or modified retrospective basis. An entity should adopt the guidance at the beginning of its annual fiscal year. We adopted this standard on January 1, 2021 on a modified retrospective basis and it did not have a material effect on our condensed consolidated financial statements. Recently Issued Accounting Pronouncements Reference Rate Reform In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting Reference Rate Reform (Topic 848): Scope

Revenue From Contracts with C_2

Revenue From Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue From Contract With Customer [Abstract]
Summary of Disaggregation of Net Sales Revenue by Product for Each of Reportable Segments	The following tables represents the disaggregation of our net sales revenue by product for each of our reportable segments: Three Months Ended March 31, 2021 U.S. Asia Mexico EMEA India Total (in thousands) Wind blade sales $ 39,627 $ 72,503 $ 108,442 $ 111,027 $ 47,580 $ 379,179 Precision molding and assembly systems sales — 3,964 4,963 — — 8,927 Transportation sales 6,424 — 1,707 — — 8,131 Other sales 3,235 461 3,347 1,339 61 8,443 Total net sales $ 49,286 $ 76,928 $ 118,459 $ 112,366 $ 47,641 $ 404,680 Three Months Ended March 31, 2020 U.S. Asia Mexico EMEA India Total (in thousands) Wind blade sales $ 35,933 $ 85,876 $ 115,186 $ 88,481 $ 10,861 $ 336,337 Precision molding and assembly systems sales — 5,061 1,702 — — 6,763 Transportation sales 6,679 — 210 — — 6,889 Other sales 4,819 200 1,152 476 — 6,647 Total net sales $ 47,431 $ 91,137 $ 118,250 $ 88,957 $ 10,861 $ 356,636
Summary of Contract Assets and Contract Liabilities	Contract assets and contract liabilities consisted of the following: March 31, December 31, 2021 2020 $ Change (in thousands) Gross contract assets $ 221,938 $ 223,428 $ (1,490 ) Less: reclassification from contract liabilities (5,903 ) (6,500 ) 597 Contract assets $ 216,035 $ 216,928 $ (893 ) March 31, December 31, 2021 2020 $ Change (in thousands) Gross contract liabilities $ 8,035 $ 7,114 $ 921 Less: reclassification to contract assets (5,903 ) (6,500 ) 597 Contract liabilities $ 2,132 $ 614 $ 1,518
Schedule of Estimate to Recognize Remaining Performance Obligations as Revenue	We estimate that we will recognize the remaining performance obligations as revenue as follows: $ % of Total (in thousands) Year Ending December 31, Remainder of 2021 $ 1,332,175 38.6 % 2022 1,426,379 41.3 2023 613,392 17.8 2024 78,353 2.3 Total remaining performance obligations $ 3,450,299 100.0 %

Accrued Warranty (Tables)

Accrued Warranty (Tables)	3 Months Ended
	Mar. 31, 2021
Product Warranties Disclosures [Abstract]
Schedule of Warranty Accrual Activity	The warranty accrual activity for the periods noted consisted of the following: Three Months Ended March 31, 2021 2020 (in thousands) Warranty accrual at beginning of period $ 50,852 $ 47,639 Accrual during the period 4,847 3,865 Cost of warranty services provided during the period (7,571 ) (3,215 ) Changes in estimate for pre-existing warranties, including expirations during the period (2,172 ) 3,239 Warranty accrual at end of period $ 45,956 $ 51,528

Long-Term Debt, Net of Debt I_2

Long-Term Debt, Net of Debt Issuance Costs and Current Maturities (Tables)	3 Months Ended
	Mar. 31, 2021
Debt Disclosure [Abstract]
Schedule of Long-Term Debt, Net of Debt Issuance Costs and Current Maturities	Long-term debt, net of debt issuance costs and current maturities, consisted of the following: March 31, December 31, 2021 2020 (in thousands) Senior revolving loan—U.S. $ 171,154 $ 171,154 Unsecured financing—EMEA 50,211 30,040 Equipment financing—EMEA 3,107 4,335 Equipment finance lease—Mexico 7,083 8,038 Equipment finance lease—EMEA 3,458 4,119 Other equipment finance leases 194 232 Total debt - principal 235,207 217,918 Less: Debt issuance costs (937 ) (1,051 ) Total debt, net of debt issuance costs 234,270 216,867 Less: Current maturities of long-term debt (53,294 ) (32,551 ) Long-term debt, net of debt issuance costs and current maturities $ 180,976 $ 184,316

Share-Based Compensation Plans

Share-Based Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Share-based Compensation Expense Recognized in Condensed Consolidated Statements of Operations	The share-based compensation expense recognized in the condensed consolidated statements of operations was as follows: Three Months Ended March 31, 2021 2020 (in thousands) Cost of goods sold $ 203 $ 171 General and administrative expenses 2,196 2,771 Total share-based compensation expense $ 2,399 $ 2,942
Schedule of Share-based Compensation Arrangements by Share-based Payment Award	The share-based compensation expense recognized by award type was as follows: Three Months Ended March 31, 2021 2020 (in thousands) RSUs $ 1,255 $ 956 Stock options 618 1,653 PSUs 526 333 Total share-based compensation expense $ 2,399 $ 2,942

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Components of Lease Cost	The components of lease cost were as follows: Three Months Ended March 31, 2021 2020 (in thousands) Total operating lease cost $ 9,716 $ 8,571 Finance lease cost Amortization of assets under finance leases $ 900 $ 1,547 Interest on finance leases 189 279 Total finance lease cost $ 1,089 $ 1,826
Schedule of Lease Liabilities	Total lease liabilities as of March 31, 2021 were as follows: Operating Finance Leases Leases (in thousands) Current operating lease liabilities $ 26,496 $ — Current maturities of long-term debt — 5,989 Noncurrent operating lease liabilities 150,289 — Long-term debt, net of debt issuance costs and current maturities — 4,746 Total lease liabilities $ 176,785 $ 10,735
Schedule of Future Minimum Lease Payments under Noncancelable Leases	Future minimum lease payments under noncancelable leases as of March 31, 2021 were as follows: Operating Finance Leases Leases (in thousands) Year Ending December 31, Remainder of 2021 $ 26,297 $ 4,565 2022 32,414 5,771 2023 30,585 871 2024 26,903 224 2025 26,721 7 Thereafter 98,447 — Total future minimum lease payments 241,367 11,438 Less: interest (64,582 ) (703 ) Total lease liabilities $ 176,785 $ 10,735
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows: Three Months Ended March 31, 2021 2020 (in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 9,250 $ 7,508 Operating cash flows from finance leases 189 279 Financing cash flows from finance leases 1,406 1,492
Other Information Related to Leases	Other information related to leases was as follows: March 31, December 31, 2021 2020 Weighted-Average Remaining Lease Term (In Years): Operating leases 7.5 7.7 Finance leases 2.0 2.2 Weighted-Average Discount Rate: Operating leases 7.9 % 7.9 % Finance leases 6.4 % 6.4 %

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Fair Values and Location of Financial Instruments	The fair values and location of our financial instruments in our condensed consolidated balance sheets were as follows: Condensed Consolidated March 31, December 31, Financial Instrument Balance Sheet Line Item 2021 2020 (in thousands) Foreign exchange forward contracts Other current assets 1,693 5,832 Foreign exchange forward contracts Accounts payable and accrued expenses 1,283 2,096 Interest rate swap Other noncurrent liabilities 3,818 4,414
Schedule of Pretax Amounts Reclassified From Accumulated Other Comprehensive Loss	The following table presents the pretax amounts reclassified from accumulated other comprehensive loss into our condensed consolidated statements of operations: Accumulated Other Condensed Three Months Ended Comprehensive Consolidated Statement March 31, Loss Component of Operations Line Item 2021 2020 (in thousands) Foreign exchange forward contracts Cost of sales $ (2,002 ) $ (222 )

Net Income (Loss) Per Common _2

Net Income (Loss) Per Common Share Calculation (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Calculation Of Weighted-Average Number Of Common Shares Outstanding	The table below reflects the calculation of the weighted-average number of common shares outstanding, using the treasury stock method, used in computing basic and diluted net income (loss) per common share: Three Months Ended March 31, 2021 2020 (in thousands) Basic weighted-average shares outstanding 36,601 35,213 Effect of dilutive awards — — Diluted weighted-average shares outstanding 36,601 35,213

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Loss	The following tables presents the changes in accumulated other comprehensive loss (AOCL) by component: Three Months Ended March 31, 2021 Foreign Foreign currency exchange translation Interest rate forward Total adjustments swap contracts AOCL (in thousands) Balance at December 31, 2020 $ (30,111 ) $ (3,443 ) $ 564 $ (32,990 ) Other comprehensive income (loss) before reclassifications (5,291 ) 597 (2,281 ) (6,975 ) Amounts reclassified from AOCL — — (2,002 ) (2,002 ) Net tax effect — (139 ) 790 651 Net current period other comprehensive income (loss) (5,291 ) 458 (3,493 ) (8,326 ) Balance at March 31, 2021 $ (35,402 ) $ (2,985 ) $ (2,929 ) $ (41,316 ) Three Months Ended March 31, 2020 Foreign Foreign currency exchange translation Interest rate forward Total adjustments swap contracts AOCL (in thousands) Balance at December 31, 2019 $ (22,012 ) $ (2,145 ) $ 545 $ (23,612 ) Other comprehensive income (loss) before reclassifications (9,223 ) (2,550 ) (6,936 ) (18,709 ) Amounts reclassified from AOCL — — (222 ) (222 ) Net tax effect — 535 1,503 2,038 Net current period other comprehensive income (loss) (9,223 ) (2,015 ) (5,655 ) (16,893 ) Balance at March 31, 2020 $ (31,235 ) $ (4,160 ) $ (5,110 ) $ (40,505 )

Concentration of Customers (Tab

Concentration of Customers (Tables)	3 Months Ended
	Mar. 31, 2021
Risks And Uncertainties [Abstract]
Schedule of Revenues from Certain Customers	Revenues from certain customers (in thousands) in excess of 10 percent of our total consolidated revenues are as follows: Three Months Ended March 31, 2021 2020 Customer Revenues % of Total Revenues % of Total Vestas $ 169,218 41.8 % $ 157,412 44.1 % GE 104,852 25.9 % 100,132 28.1 % Nordex 76,543 18.9 % 53,257 14.9 %
Schedule of Trade Accounts Receivable from Certain Customers	Trade accounts receivable from certain customers in excess of 10 percent of our total consolidated trade accounts receivable are as follows: March 31, December 31, 2021 2020 Customer % of Total % of Total Vestas 26.7 % 35.0 % Nordex 44.3 % 40.8 % Enercon 11.2 % 8.3 %

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Schedule of Segment Information	The following tables set forth certain information regarding each of our segments: Three Months Ended March 31, 2021 2020 (in thousands) Net sales by segment: U.S. $ 49,286 $ 47,431 Asia 76,928 91,137 Mexico 118,459 118,250 EMEA 112,366 88,957 India 47,641 10,861 Total net sales $ 404,680 $ 356,636 Net sales by geographic location (1) United States $ 49,286 $ 47,431 China 76,928 91,137 Mexico 118,459 118,250 Turkey 112,366 88,957 India 47,641 10,861 Total net sales $ 404,680 $ 356,636 Income (loss) from operations: U.S. (2) $ (11,620 ) $ (15,586 ) Asia 2,709 5,072 Mexico (4,024 ) (1,768 ) EMEA 9,788 2,664 India (60 ) (5,786 ) Total loss from operations $ (3,207 ) $ (15,404 ) March 31, December 31, 2021 2020 (in thousands) Property, plant and equipment, net: U.S. $ 32,884 $ 31,811 Asia (China) 43,771 46,075 Mexico 81,857 78,813 EMEA (Turkey) 23,890 28,312 India 29,727 23,990 Total property, plant and equipment, net $ 212,129 $ 209,001 (1) Net sales are attributable to countries based on the location where the product is manufactured or the services are performed. (2) The losses from operations in our U.S. segment includes corporate general and administrative costs of $8.9 million and $9.5 million for the three months ended March 31, 2021 and 2020, respectively.

Basis of Presentation - Recentl

Basis of Presentation - Recently Adopted Accounting Pronouncements - Additional Information (Detail) - Accounting Standards Update 2020-06 [Member]	Mar. 31, 2021
Operations And Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 1, 2021
Change in accounting principle, accounting standards update, immaterial effect	true

Revenue From Contracts with C_3

Revenue From Contracts with Customers - Summary of Disaggregation of Net Sales Revenue by Product for Each of Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Net sales revenue	$ 404,680	$ 356,636
U.S. Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	49,286	47,431
Asia Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	76,928	91,137
Mexico Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	118,459	118,250
EMEA Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	112,366	88,957
India Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	47,641	10,861
Wind Blades [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	379,179	336,337
Wind Blades [Member] | U.S. Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	39,627	35,933
Wind Blades [Member] | Asia Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	72,503	85,876
Wind Blades [Member] | Mexico Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	108,442	115,186
Wind Blades [Member] | EMEA Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	111,027	88,481
Wind Blades [Member] | India Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	47,580	10,861
Precision Molding and Assembly Systems [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	8,927	6,763
Precision Molding and Assembly Systems [Member] | Asia Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	3,964	5,061
Precision Molding and Assembly Systems [Member] | Mexico Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	4,963	1,702
Transportation [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	8,131	6,889
Transportation [Member] | U.S. Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	6,424	6,679
Transportation [Member] | Mexico Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	1,707	210
Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	8,443	6,647
Other [Member] | U.S. Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	3,235	4,819
Other [Member] | Asia Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	461	200
Other [Member] | Mexico Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	3,347	1,152
Other [Member] | EMEA Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	1,339	$ 476
Other [Member] | India Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales revenue	$ 61

Revenue From Contracts with C_4

Revenue From Contracts with Customers - Summary of Contract Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue From Contract With Customer [Abstract]
Gross contract assets	$ 221,938	$ 223,428
Less: reclassification from contract liabilities	(5,903)	(6,500)
Contract assets	216,035	$ 216,928
Gross contract assets, Change	(1,490)
Less: reclassification from contract liabilities, Change	597
Contract assets, Change	$ (893)

Revenue From Contracts with C_5

Revenue From Contracts with Customers - Summary of Contract Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue From Contract With Customer [Abstract]
Gross contract liabilities	$ 8,035	$ 7,114
Less: reclassification to contract assets	(5,903)	(6,500)
Contract liabilities	2,132	$ 614
Gross contract liabilities, Change	921
Less: reclassification to contract assets, Change	597
Contract liabilities, Change	$ 1,518

Revenue From Contracts with C_6

Revenue From Contracts with Customers - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Revenue from Contracts with Customers [Line Items]
Decrease in contract assets	$ 893
Increase in contracts liabilities	1,518
Transaction price allocated to remaining performance obligations to be satisfied in future periods	3,450,299
Net revenue recognized from performance obligations satisfied in previous periods, decrease amount	8,500
Precision Molding And Assembly Systems And Wind Blades [Member]
Revenue from Contracts with Customers [Line Items]
Contract liability revenue recognized	$ 100

Revenue From Contracts with C_7

Revenue From Contracts with Customers - Schedule of Estimate to Recognize Remaining Performance Obligations as Revenue (Detail) $ in Thousands	Mar. 31, 2021USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Total remaining performance obligations	$ 3,450,299
% of Total remaining performance obligations	100.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Total remaining performance obligations	$ 1,332,175
% of Total remaining performance obligations	38.60%
Remaining performance obligations, expected timing of satisfaction period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Total remaining performance obligations	$ 1,426,379
% of Total remaining performance obligations	41.30%
Remaining performance obligations, expected timing of satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Total remaining performance obligations	$ 613,392
% of Total remaining performance obligations	17.80%
Remaining performance obligations, expected timing of satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Total remaining performance obligations	$ 78,353
% of Total remaining performance obligations	2.30%
Remaining performance obligations, expected timing of satisfaction period	1 year

Revenue From Contracts with C_8

Revenue From Contracts with Customers - Schedule of Estimate to Recognize Remaining Performance Obligations as Revenue (Detail1) $ in Thousands	Mar. 31, 2021USD ($)
Revenue From Contract With Customer [Abstract]
Total remaining performance obligations	$ 3,450,299
% of Total remaining performance obligations	100.00%

Significant Risks and Uncerta_2

Significant Risks and Uncertainties - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Concentration Risk [Line Items]
Cash in short-term deposits in interest bearing accounts	$ 336,000	$ 339,000
Maximum percentage of change in variable rate would not have impact on future earnings	10.00%
U.S. [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	$ 97,000,000	68,900,000
China [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	32,700,000	47,400,000
Cash in short-term deposits in interest bearing accounts	300,000	300,000
Turkey [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	3,500,000	6,000,000
India [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	1,800,000	5,000,000
Mexico [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	800,000	2,100,000
Other Countries [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	400,000	500,000
Maximum [Member] | U.S. [Member]
Concentration Risk [Line Items]
Cash deposit insured amount	$ 250,000	$ 250,000

Accrued Warranty - Schedule of

Accrued Warranty - Schedule of Warranty Accrual Activity (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Product Warranties Disclosures [Abstract]
Warranty accrual at beginning of period	$ 50,852	$ 47,639
Accrual during the period	4,847	3,865
Cost of warranty services provided during the period	(7,571)	(3,215)
Changes in estimate for pre-existing warranties, including expirations during the period	(2,172)	3,239
Warranty accrual at end of period	$ 45,956	$ 51,528

Long-Term Debt, Net of Debt I_3

Long-Term Debt, Net of Debt Issuance Costs and Current Maturities - Schedule of Long-Term Debt, Net of Debt Issuance Costs and Current Maturities (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Total long-term debt
Total long-term debt	$ 235,207	$ 217,918
Less: Debt issuance costs	(937)	(1,051)
Total debt, net of debt issuance costs	234,270	216,867
Less: Current maturities of long-term debt	(53,294)	(32,551)
Long-term debt, net of debt issuance costs and current maturities	180,976	184,316
Senior Revolving Loan [Member] | U.S. [Member]
Total long-term debt
Total long-term debt	171,154	171,154
Unsecured Financing [Member] | EMEA [Member]
Total long-term debt
Total long-term debt	50,211	30,040
Equipment Financing [Member] | EMEA [Member]
Total long-term debt
Total long-term debt	3,107	4,335
Equipment Finance Lease [Member] | EMEA [Member]
Total long-term debt
Total long-term debt	3,458	4,119
Equipment Finance Lease [Member] | Mexico [Member]
Total long-term debt
Total long-term debt	7,083	8,038
Other Equipment Finance Lease [Member]
Total long-term debt
Total long-term debt	$ 194	$ 232

Share-Based Compensation Plan_2

Share-Based Compensation Plans - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2021shares
Timed-Based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation plans, shares issued	145,643
Performance-Based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation plans, shares issued	58,396
Performance-Based Restricted Stock Units [Member] | Certain Stock Price Hurdles [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation plans, shares issued	79,784

Share-Based Compensation Plan_3

Share-Based Compensation Plans - Schedule of Share-based Compensation Expense Recognized in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 2,399	$ 2,942
Cost of Goods Sold [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	203	171
General and Administrative Expenses [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 2,196	$ 2,771

Share-Based Compensation Plan_4

Share-Based Compensation Plans - Schedule of Share-based Compensation Arrangements by Share-based Payment Award (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 2,399	$ 2,942
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	1,255	956
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	618	1,653
Performance-based Restricted Stock Units (PSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 526	$ 333

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Lessee Lease Description [Line Items]
Lessee, operating lease, option to extend	include options to extend the leases up to five years
Lessee, operating lease, existence of option to extend [true false]	true
Lessee, finance lease, option to extend	include options to extend the leases up to five years
Lessee, finance lease, existence of option to extend [true false]	true
Lessee, leases not yet commenced, description	As of March 31, 2021, there were no material additional leases related to our manufacturing facilities, warehouses, offices, automobiles or our machinery and equipment which have not yet commenced.
Lessee, leases not yet commenced, lease liability	$ 0
Assets Under Finance Lease [Member]
Lessee Lease Description [Line Items]
Cost of property plant and equipment leased under finance lease arrangements	27,500,000	$ 28,500,000
Accumulated depreciation of property plant and equipment under finance lease arrangements	$ 12,800,000	$ 12,500,000
Minimum [Member]
Lessee Lease Description [Line Items]
Operating and Finance leases, remaining lease terms	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating and Finance leases, remaining lease terms	15 years
Lessee, lease options to extend lease term	5 years

Leases - Components of Lease Co

Leases - Components of Lease Cost (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Total operating lease cost	$ 9,716	$ 8,571
Finance lease cost
Amortization of assets under finance leases	900	1,547
Interest on finance leases	189	279
Total finance lease cost	$ 1,089	$ 1,826

Leases - Schedule of Lease Liab

Leases - Schedule of Lease Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Current operating lease liabilities	$ 26,496	$ 26,099
Noncurrent operating lease liabilities	150,289	$ 155,925
Total lease liabilities	176,785
Current maturities of long-term debt	5,989
Long-term debt, net of debt issuance costs and current maturities	4,746
Total lease liabilities	$ 10,735

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments under Noncancelable Leases (Detail) $ in Thousands	Mar. 31, 2021USD ($)
Operating Leases Abstract
Remainder of 2021	$ 26,297
2022	32,414
2023	30,585
2024	26,903
2025	26,721
Thereafter	98,447
Total future minimum lease payments	241,367
Less: interest	(64,582)
Total lease liabilities	176,785
Finance Leases Abstract
Remainder of 2021	4,565
2022	5,771
2023	871
2024	224
2025	7
Total future minimum lease payments	11,438
Less: interest	(703)
Total lease liabilities	$ 10,735

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 9,250	$ 7,508
Operating cash flows from finance leases	189	279
Financing cash flows from finance leases	$ 1,406	$ 1,492

Leases - Other Information Rela

Leases - Other Information Related to Leases (Detail)	Mar. 31, 2021	Dec. 31, 2020
Weighted-Average Remaining Lease Term (In Years):
Operating leases	7 years 6 months	7 years 8 months 12 days
Finance leases	2 years	2 years 2 months 12 days
Weighted-Average Discount Rate:
Operating leases	7.90%	7.90%
Finance leases	6.40%	6.40%

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2021USD ($)	Mar. 31, 2021MXN ($)	Dec. 31, 2020USD ($)	Dec. 31, 2020MXN ($)
Derivative [Line Items]
Derivative designated for hedge accounting terminated	$ 0
Foreign Exchange Forward Contract [Member] | Contracts to Hedge in Chinese Renminbi [Member] | Foreign Currency Loss [Member]
Derivative [Line Items]
Gain on hedge recorded to statement of operations	100,000
Foreign Exchange Call Option [Member] | Contracts to Hedge in Mexican Pesos [Member] | Cost of Sales [Member]
Derivative [Line Items]
Premium amortization	700,000
Cash Flow Hedging [Member] | Foreign Exchange Forward Contract [Member]
Derivative [Line Items]
Derivative notional amount			$ 14,000,000	$ 300,000,000
Cash Flow Hedging [Member] | Foreign Exchange Call Option [Member]
Derivative [Line Items]
Derivative notional amount	$ 68,100,000	$ 1,400,000,000	$ 17,300,000	$ 400,000,000

Financial Instruments - Fair Va

Financial Instruments - Fair Values and Location of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Foreign Exchange Forward Contract [Member] | Other Current Assets [Member]
Derivatives Fair Value [Line Items]
Derivative assets, fair value	$ 1,693	$ 5,832
Foreign Exchange Forward Contract [Member] | Accounts Payable and Accrued Expenses [Member]
Derivatives Fair Value [Line Items]
Derivative liability, fair value	1,283	2,096
Interest Rate Swap | Other Noncurrent Liabilities [Member]
Derivatives Fair Value [Line Items]
Derivative liability, fair value	$ 3,818	$ 4,414

Financial Instruments - Schedul

Financial Instruments - Schedule of Pretax Amounts Reclassified From Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 383,056	$ 348,475
Foreign Exchange Forward Contract [Member] | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ (2,002)	$ (222)

Net Income (Loss) Per Common _3

Net Income (Loss) Per Common Share Calculation - Calculation Of Weighted-Average Number Of Common Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Basic weighted-average shares outstanding	36,601	35,213
Effect of dilutive awards	0	0
Diluted weighted-average shares outstanding	36,601	35,213

Net Income (Loss) Per Common _4

Net Income (Loss) Per Common Share Calculation - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted net income (loss) per share	2,040,000	890,000
Share-Based Compensation Awards [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from computation of diluted net income (loss) per share		66,000

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ 201,035	$ 205,050
Net current period other comprehensive income (loss)	(8,326)	(16,893)
Ending balance	194,608	191,038
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(30,111)	(22,012)
Other comprehensive income (loss) before reclassifications	(5,291)	(9,223)
Net current period other comprehensive income (loss)	(5,291)	(9,223)
Ending balance	(35,402)	(31,235)
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(3,443)	(2,145)
Other comprehensive income (loss) before reclassifications	597	(2,550)
Net tax effect	(139)	535
Net current period other comprehensive income (loss)	458	(2,015)
Ending balance	(2,985)	(4,160)
Foreign Exchange Forward Contract [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	564	545
Other comprehensive income (loss) before reclassifications	(2,281)	(6,936)
Amounts reclassified from AOCL	(2,002)	(222)
Net tax effect	790	1,503
Net current period other comprehensive income (loss)	(3,493)	(5,655)
Ending balance	(2,929)	(5,110)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(32,990)	(23,612)
Other comprehensive income (loss) before reclassifications	(6,975)	(18,709)
Amounts reclassified from AOCL	(2,002)	(222)
Net tax effect	651	2,038
Net current period other comprehensive income (loss)	(8,326)	(16,893)
Ending balance	$ (41,316)	$ (40,505)

Concentration of Customers - Ad

Concentration of Customers - Additional Information (Detail) - Customer Concentration Risk [Member] - Minimum [Member]	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Sales Revenues [Member]
Concentration Risk [Line Items]
Customer risk percentage	10.00%	10.00%
Accounts Receivable [Member]
Concentration Risk [Line Items]
Customer risk percentage	10.00%		10.00%

Concentration of Customers - Sc

Concentration of Customers - Schedule of Revenues from Certain Customers (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Concentration Risk [Line Items]
Revenues	$ 404,680	$ 356,636
Sales Revenues [Member] | Vestas [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues	$ 169,218	$ 157,412
Percentage of Total	41.80%	44.10%
Sales Revenues [Member] | GE [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues	$ 104,852	$ 100,132
Percentage of Total	25.90%	28.10%
Sales Revenues [Member] | Nordex [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues	$ 76,543	$ 53,257
Percentage of Total	18.90%	14.90%

Concentration of Customers - _2

Concentration of Customers - Schedule of Trade Accounts Receivable from Certain Customers (Detail) - Accounts Receivable [Member] - Customer Concentration Risk [Member]	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Vestas [Member]
Concentration Risk [Line Items]
Percentage of Total	26.70%	35.00%
Nordex [Member]
Concentration Risk [Line Items]
Percentage of Total	44.30%	40.80%
Enercon [Member]
Concentration Risk [Line Items]
Percentage of Total	11.20%	8.30%

Segment Reporting - Additional

Segment Reporting - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2021Segment
Segment Reporting [Abstract]
Number of operating segments	5

Segment Reporting - Schedule of

Segment Reporting - Schedule of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total net sales	$ 404,680	$ 356,636
Total loss from operations	(3,207)	(15,404)
Total property, plant and equipment, net	212,129		$ 209,001
U.S. [Member]
Segment Reporting Information [Line Items]
Total net sales	49,286	47,431
China [Member]
Segment Reporting Information [Line Items]
Total net sales	76,928	91,137
Mexico [Member]
Segment Reporting Information [Line Items]
Total net sales	118,459	118,250
Turkey [Member]
Segment Reporting Information [Line Items]
Total net sales	112,366	88,957
India [Member]
Segment Reporting Information [Line Items]
Total net sales	47,641	10,861
U.S. Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	49,286	47,431
Total loss from operations	(11,620)	(15,586)
Total property, plant and equipment, net	32,884		31,811
Asia Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	76,928	91,137
Total loss from operations	2,709	5,072
Total property, plant and equipment, net	43,771		46,075
Mexico Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	118,459	118,250
Total loss from operations	(4,024)	(1,768)
Total property, plant and equipment, net	81,857		78,813
EMEA Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	112,366	88,957
Total loss from operations	9,788	2,664
Total property, plant and equipment, net	23,890		28,312
India Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	47,641	10,861
Total loss from operations	(60)	$ (5,786)
Total property, plant and equipment, net	$ 29,727		$ 23,990

Segment Reporting - Schedule _2

Segment Reporting - Schedule of Segment Information (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
General and administrative costs	$ 8,922	$ 9,496
U.S. Segment [Member]
Segment Reporting Information [Line Items]
General and administrative costs	$ 8,900	$ 9,500