Triumph (TGI) 10-Q 5 Aug 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Document Information [Line Items]
Document Period End Date	Jun. 30, 2020
Entity Registrant Name	TRIUMPH GROUP, INC.
Entity Central Index Key	0001021162
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		52,072,825
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	51-0347963
Entity File Number	1-12235
Entity Address, Address Line One	899 Cassatt Road
Entity Address, Address Line Two	Suite 210
Entity Address, City or Town	Berwyn
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19312
City Area Code	610
Local Phone Number	251-1000
Document Quarterly Report	true
Document Transition Report	false
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	TGI
Security Exchange Name	NYSE
Purchase Rights [Member]
Document Information [Line Items]
Title of 12(b) Security	Purchase Rights
No Trading Symbol Flag	true
Security Exchange Name	NYSE

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 30,909	$ 485,463
Trade and other receivables, less allowance for credit losses of $7,181 and $4,293	256,848	359,487
Contract assets	203,984	244,417
Inventory, net	467,105	452,976
Assets held for sale	195,073
Prepaid expenses and other current assets	18,708	19,289
Total current assets	1,172,627	1,561,632
Property and equipment, net	370,820	418,141
Goodwill	513,392	513,527
Intangible assets, net	120,928	381,968
Other, net	88,553	105,065
Total assets	2,266,320	2,980,333
Current liabilities:
Current portion of long-term debt	7,555	7,336
Accounts payable	299,269	457,694
Contract liabilities	199,463	295,320
Accrued expenses	199,267	227,403
Liabilities related to assets held for sale	83,806
Total current liabilities	789,360	987,753
Long-term debt, less current portion	1,557,066	1,800,171
Accrued pension and other postretirement benefits	643,256	660,065
Deferred income taxes	7,487	7,439
Other noncurrent liabilities	316,532	306,169
Stockholders' deficit:
Common stock, $.001 par value, 100,000,000 shares authorized, 52,460,920 and 52,460,920 shares issued; 52,002,210 and 51,858,089 shares outstanding	52	52
Capital in excess of par value	796,186	804,830
Treasury stock, at cost, 458,710 and 602,831 shares	(25,188)	(36,217)
Accumulated other comprehensive loss	(710,616)	(719,428)
Accumulated deficit	(1,107,815)	(830,501)
Total stockholders' deficit	(1,047,381)	(781,264)
Total liabilities and stockholders' deficit	$ 2,266,320	$ 2,980,333

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for credit losses	$ 7,181	$ 4,293
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	52,460,920	52,460,920
Common stock, shares outstanding	52,002,210	51,858,089
Treasury stock, shares	458,710	602,831

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 495,077	$ 730,231
Operating costs and expenses:
Cost of sales (exclusive of depreciation shown separately below)	393,843	582,233
Selling, general and administrative	57,203	62,337
Depreciation and amortization	28,602	44,050
Impairment of long-lived assets	252,382
Restructuring	15,439	2,964
Loss on sale of assets and businesses		3,136
Operating Expenses	747,469	694,720
Operating (loss) income	(252,392)	35,511
Non-service defined benefit income	(10,888)	(14,875)
Interest expense and other, net	34,957	27,491
(Loss) income from continuing operations before income taxes	(276,461)	22,895
Income tax expense	853	4,807
Net (loss) income	$ (277,314)	$ 18,088
(Loss) earnings per share—basic:
Net (loss) income	$ (5.35)	$ 0.36
Weighted average common shares outstanding—basic	51,860	49,854
(Loss) earnings per share—diluted:
Net (loss) income	$ (5.35)	$ 0.36
Weighted average common shares outstanding—diluted	51,860	50,295
Dividends declared and paid per common share		$ 0.04

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (277,314)	$ 18,088
Other comprehensive income (loss):
Foreign currency translation adjustment	919	(2,683)
Reclassification to net (loss) income - net of expense (benefit)
Amortization of net (gain) loss, net of taxes of $0 and $0, respectively	6,826	2,851
Recognized prior service cost (credits), net of taxes of $0 and $0, respectively	(1,033)	(1,442)
Total defined benefit pension plans and other postretirement benefits, net of taxes	5,793	1,409
Cash flow hedges:
Unrealized gain arising during the period, net of tax benefit of $0 and $0 respectively	3,658	95
Reclassification of loss included in net earnings, net of tax expense of $0 and $0 respectively	(1,558)	(414)
Net unrealized gain (loss) on cash flow hedges, net of tax	2,100	(319)
Total other comprehensive income (loss)	8,812	(1,593)
Total comprehensive (loss) income	$ (268,502)	$ 16,495

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive (Loss) Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Tax	$ 0	$ 0
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Tax	0	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	$ 0	$ 0

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock [Member]	Capital in Excess of Par Value [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member]Cumulative Effect, Period of Adoption, Adjustment
Balance at Mar. 31, 2019	$ (573,313)	$ (225)	$ 52	$ 867,545	$ (159,154)	$ (487,684)	$ (794,072)	$ (225)
Balance (in shares) at Mar. 31, 2019			49,887,268
Net income (loss)	$ 18,088						18,088
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Foreign currency translation adjustment	$ (2,683)					(2,683)
Pension liability adjustment, net of income taxes	1,409					1,409
Change in fair value of foreign currency hedges, net of income taxes	(319)					(319)
Cash dividends ($0.04 per share)	(1,998)						(1,998)
Share-based compensation	1,903			(7,631)	9,534
Share-based compensation, shares			154,802
Repurchase of restricted shares for minimum tax obligation	(1,043)				(1,043)
Repurchase of restricted shares for minimum tax obligation, shares			(51,406)
Employee stock purchase plan	262			(634)	896
Employee stock purchase plan, shares			14,489
Balance at Jun. 30, 2019	(557,919)		$ 52	859,280	(149,767)	(489,277)	(778,207)
Balance (in shares) at Jun. 30, 2019			50,005,153
Balance at Mar. 31, 2020	(781,264)		$ 52	804,830	(36,217)	(719,428)	(830,501)
Balance (in shares) at Mar. 31, 2020			51,858,089
Net income (loss)	(277,314)						(277,314)
Foreign currency translation adjustment	919					919
Pension liability adjustment, net of income taxes	5,793					5,793
Change in fair value of foreign currency hedges, net of income taxes	2,100					2,100
Share-based compensation	2,621			(6,670)	9,291
Share-based compensation, shares			158,274
Repurchase of restricted shares for minimum tax obligation	(474)				(474)
Repurchase of restricted shares for minimum tax obligation, shares			(50,955)
Employee stock purchase plan	238			(1,974)	2,212
Employee stock purchase plan, shares			36,802
Balance at Jun. 30, 2020	$ (1,047,381)		$ 52	$ 796,186	$ (25,188)	$ (710,616)	$ (1,107,815)
Balance (in shares) at Jun. 30, 2020			52,002,210

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Deficit (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Statement Of Stockholders Equity Parenthetical [Abstract]
Other comprehensive (income) loss, defined benefit plan, after reclassification adjustment, tax	$ 0	$ 0
Other comprehensive income (loss), tax	$ 0	$ 11
Dividends declared and paid per common share (in dollars per share)		$ 0.04

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating Activities
Net (loss) income	$ (277,314)	$ 18,088
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	28,602	44,050
Impairment of long-lived assets	252,382
Amortization of acquired contract liability	(10,987)	(16,939)
Loss on sale of assets and businesses		3,136
Other amortization included in interest expense	2,191	1,958
Provision for credit losses	3,280	671
Provision for deferred income taxes		3,307
Share-based compensation	2,786	2,426
Changes in other assets and liabilities, excluding the effects of acquisitions and divestitures:
Trade and other receivables	86,004	41,247
Contract assets	(63,391)	2,767
Inventories	(33,330)	(56,623)
Prepaid expenses and other current assets	549	12,721
Accounts payable, accrued expenses, and contract liabilities	(184,114)	(35,426)
Accrued pension and other postretirement benefits	(3,526)	(15,792)
Other	(665)	(573)
Net cash (used in) provided by operating activities	(197,533)	5,018
Investing Activities
Capital expenditures	(7,723)	(8,090)
Proceeds from (payments on) sale of assets and businesses	792	(2,570)
Net cash used in investing activities	(6,931)	(10,660)
Financing Activities
Net decrease in revolving credit facility	(225,000)	(30,000)
Proceeds from issuance of long-term debt	6,300	5,600
Retirement of debt and finance lease obligations	27,468	30,572
Payment of deferred financing costs	(4,277)	(104)
Dividends paid		(1,998)
Repurchase of restricted shares for minimum tax obligations	(474)	(1,043)
Net cash used in financing activities	(250,919)	(58,117)
Effect of exchange rate changes on cash	829	(121)
Net change in cash and cash equivalents	(454,554)	(63,880)
Cash and cash equivalents at beginning of period	485,463	92,807
Cash and cash equivalents at end of period	$ 30,909	$ 28,927

Background and Basis of Present

Background and Basis of Presentation	3 Months Ended
	Jun. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Background and Basis of Presentation	1. BACKGROUND AND BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements of Triumph Group, Inc. ("Triumph") have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position and cash flows. The results of operations for the three months ended June 30, 2020 and 2019, are not necessarily indicative of results that may be expected for the year ending March 31, 2021. The accompanying condensed consolidated financial statements are unaudited and should be read in conjunction with the fiscal 2020 audited consolidated financial statements and notes thereto included in the Company's Form 10-K for the fiscal year ended March 31, 2020, filed with the Securities and Exchange Commission (the "SEC") on May 28, 2020. Triumph is a Delaware corporation which, through its operating subsidiaries, designs, engineers, manufactures and sells products for the global aerospace original equipment manufacturers ("OEMs") of aircraft and aircraft components and repairs and overhauls aircraft components and accessories for commercial airline, air cargo carrier and military customers on a worldwide basis. Triumph and its subsidiaries (collectively, the "Company") are organized based on the products and services that they provide. The Company has two reportable segments: Systems & Support and Aerospace Structures. Systems & Support consists of the Company’s operations that provide integrated solutions, including design, development, and support of proprietary components, subsystems and systems, as well as production of complex assemblies using external designs. Capabilities include hydraulic, mechanical and electromechanical actuation, power and control; a complete suite of aerospace gearbox solutions, including engine accessory gearboxes and helicopter transmissions; active and passive heat exchange technology; fuel pumps, fuel metering units and Full Authority Digital Electronic Control fuel systems; hydromechanical and electromechanical primary and secondary flight controls. Systems & Support also provides full life cycle solutions for commercial, regional and military aircraft. The Company’s extensive product and service offerings include full post-delivery value chain services that simplify the maintenance, repair, and overhaul (“MRO”) supply chain. Through its ground support equipment maintenance, component MRO and post-production supply chain activities, Systems & Support is positioned to provide integrated planeside repair solutions globally. Capabilities include metallic and composite aircraft structures; nacelles; thrust reversers; interiors; auxiliary power units; and a wide variety of pneumatic, hydraulic, fuel and mechanical accessories. Repair services generally involve the replacement and/or remanufacturing of parts, which is similar to the original manufacture of the part. The processes that the Company performs related to repair and overhaul services are essentially the repair of wear parts or replacement of parts that are beyond economic repair. The repair service generally involves remanufacturing a complete part or a component of a part. Aerospace Structures consists of the Company’s operations that supply commercial, business, regional and military manufacturers with large metallic and composite structures and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Products include wings; wing boxes; fuselage panels; horizontal and vertical tails; subassemblies such as floor grids; and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Aerospace Structures also has the capability to engineer detailed structural designs in metal and composites. Capabilities include advanced composite and interior structures, joining processes such as welding, autoclave bonding, and conventional mechanical fasteners. The accompanying consolidated financial statements include the accounts of Triumph and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated from the consolidated financial statements. Standards Recently Implemented Adoption of ASU 2016-13 In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. The Company adopted ASU 2018-13 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures. Standards Issued Not Yet Implemented In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Revenue Recognition and Contract Balances The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts. The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes. Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. However, a subset of the Company’s current contracts includes significant financing components because the timing of the transfer of the underlying products and services under contract are at the customers’ discretion. For these contracts, the Company adjusts the transaction price to reflect the effects of the time value of money. The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis. The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information. Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset. With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements. Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required, and are included in contract liabilities on the accompanying consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic; however, actual results could differ materially from those estimates. For the three months ended June 30, 2020, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased revenue and decreased operating loss, net loss and loss per share by approximately $1,560, $3,326, $3,326, and $0.06, respectively. For the three months ended June 30, 2019, cumulative catch-up adjustments resulting from changes in estimates decreased net sales, operating income, net income, and earnings per share by approximately ($1,149), ($4,967), ($3,924), and ($0.08), respectively. Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred. Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion. In connection with several prior acquisitions, the Company assumed existing long-term contracts. Based on review of these contracts at the acquisition date , the Company concluded that the terms of certain contracts were either more or less favorable than could be realized in market transactions as of the date of the acquisition. As a result, the Company recognized acquired contract liabilities, net of acquired contract assets as of the acquisition date of each respective acquisition, based on the present value of the difference between the contractual cash flows of the executory contracts and the estimated cash flows had the contracts been executed at the acquisition date. The liabilities principally relate to long-term contracts that were initially executed several years prior to the respective acquisition. The Company measured these net liabilities in the year they were acquired under the measurement provisions of Accounting Standards Codification (“ASC”) 820, Fair Value Measurement , which is based on the price to transfer the obligation to a market participant at the measurement date, assuming that the net liabilities will remain outstanding in the marketplace. The portion of the Company's revenue resulting from transactions other than contracts with customers pertains to the amortization of these acquired contract liabilities. Trade and Other Receivables, net Trade and other receivables are recorded net of an allowance for expected credit losses. Trade and other receivables include amounts billed and currently due from customers and amounts retained by the customer pending contract completion. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company pools receivables that share underlying risk characteristics and records the allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. The Company writes off balances against the allowance for expected credit losses when collectibility is deemed remote. The Company's trade and other receivables are exposed to credit risk; however, the risk is limited due to the diversity of the customer base. For the three months ended June 30, 2020 and 2019, credit loss expense and write offs were immaterial. Leases The Company leases office space, manufacturing facilities, land, vehicles, and equipment. The Company determines if an agreement is or contains a lease at the lease inception date and recognizes right-of-use (“ROU”) assets and lease liabilities at the lease commencement date. A ROU asset and corresponding lease liability are not recorded for leases with an initial term of 12 months or less (“short-term leases”). ROU assets represent the Company's right to use an underlying asset during the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. The determination of the length of lease terms is affected by options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The existence of significant economic incentive is the primary consideration when assessing whether the Company is reasonably certain of exercising an option in a lease. Both finance and operating lease ROU assets and liabilities are recognized at commencement date and measured as the present value of lease payments to be made over the lease term. As the interest rate implicit in the lease is not readily available for most of the Company's leases, the Company uses its estimated incremental borrowing rate in determining the present value of lease payments. The estimated incremental borrowing rate is derived from information available at the lease commencement date. The lease ROU asset recognized at commencement is adjusted for any lease payments related to initial direct costs, prepayments, and lease incentives. For operating leases, lease expense is recognized on a straight-line basis over the lease term. For finance leases, lease expense comprises the amortization of the ROU assets recognized on a straight-line basis generally over the shorter of the lease term or the estimated useful life of the underlying asset and interest on the lease liability. Variable lease payments not dependent on a rate or index are recognized when the event, activity, or circumstance in the lease agreement upon which those payments are contingent is probable of occurring and are presented in the same line of the consolidated balance sheet as the rent expense arising from fixed payments. The Company has lease agreements with lease and non-lease components. Non-lease components are combined with the related lease components and accounted for as lease components for all classes of underlying assets. Concentration of Credit Risk The Company’s trade and other accounts receivable are exposed to credit risk. However, the risk is limited due to the diversity of the customer base and the customer base’s wide geographical area. Trade accounts receivable from The Boeing Company ("Boeing") (representing commercial, military and space) represented approximately 17% and 21% of total trade accounts receivable as of June 30, 2020 and March 31, 2020, respectively. Trade and other accounts receivable from Bombardier Inc. ("Bombardier") include receivables from transition services and represented approximately 19% and 16% as of June 30, 2020 and March 31, 2020, respectively. The Company had no other concentrations of credit risk of more than 10%. Sales to Boeing for the three months ended June 30, 2020, were $188,137, or 38% of net sales, of which $52,022 and $136,114 were from the Systems & Support and Aerospace Structures, respectively. Sales to Boeing for the three months ended June 30, 2019, were $245,315, or 34% of net sales, of which $61,032 and $184,282 were from the Systems & Support and Aerospace Structures, respectively. The percentage increase in sales to Boeing as compared with the prior period is driven entirely by military sales. Sales to Gulfstream Aerospace Corporation (“Gulfstream”) for the three months ended June 30, 2020, were $53,710, or 11% of net sales, of which $843 and $52,867 were from the Systems & Support and Aerospace Structures, respectively. Sales to Gulfstream for the three months ended June 30, 2019, were $102,315, or 14% of net sales, of which $855 and $101,459 were from the Systems & Support and Aerospace Structures, respectively. No other single customer accounted for more than 10% of the Company’s net sales. However, the loss of any significant customer, including Boeing and Gulfstream, could have a material adverse effect on the Company and its operating subsidiaries. Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when measuring long-lived asset impairment in the current period (see Note 10), and to its pension and postretirement plan assets (see Note 11). Supplemental Cash Flow Information For the three months ended June 30, 2020, the Company paid $360 for income taxes, net of income tax refunds received. For the three months ended June 30, 2019, the Company paid $1,280 as income tax refunds, net of refunds received.

Divested Operations and Assets

Divested Operations and Assets Held For Sale	3 Months Ended
	Jun. 30, 2020
Discontinued Operations And Disposal Groups [Abstract]
Divested Operations and Assets Held For Sale	3. DIVESTED OPERATIONS AND ASSETS HELD FOR SALE Assets Held for Sale In May 2020, the Company’s Board of Directors committed to a plan (i) to sell its composites manufacturing operations located in Milledgeville, Georgia and Rayong, Thailand and (ii) to transfer the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities. In August 2020, the Company entered into a definitive agreement with the buyer of the composites manufacturing operations in Georgia and Thailand. Also in August 2020, the Company entered into a definitive agreement with Gulfstream to sell its G650 program scope of work. The transactions are expected to close in mid-fiscal 2021 and result in gains. As of June 30, 2020, the related assets and liabilities associated with these transactions are included within the Aerospace Structures reportable segment and are classified as held for sale on the accompanying condensed consolidating balance sheets. Fiscal 2020 Divestitures In December 2019, the Company completed the sale of its manufacturing operations at its Nashville, TN, facility for cash proceeds net of transaction costs of approximately $58,000, including approximately $7,000 allocated as a premium paid by the buyer in exchange for a specified performance guarantee. The Company recognized a loss of approximately $64,000, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses. The operating results of the Nashville manufacturing operations are included in Aerospace Structures through the date of divestiture. Additionally, as part of the transaction, the Company agreed to transfer to the buyer, within 120 days from the date of closing, certain defined benefit pension assets and obligations of approximately $55,000 associated with the Nashville manufacturing operations. In accordance with applicable defined benefit pension plan accounting guidance, the transfer was treated as a settlement for purposes of the Company’s financial statements and resulted in accelerated recognition of previously unrecognized actuarial losses. The Company completed the transfer of the defined benefit pension assets and obligations in March 2020 and recognized a one-time settlement loss of approximately $28,000. In September 2019, the Company completed the assignment of its E-2 Jets contract with Embraer for the manufacture of structural components for their program to AeroSpace Technologies of Korea Inc. ("ASTK"). As part of this transaction, the Company transferred certain assets and liabilities to ASTK and recognized a gain of approximately $10,000, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses. The assets and liabilities transferred were included within Aerospace Structures through the date of divestiture.

Revenue Recognition and Contrac

Revenue Recognition and Contracts with Customers	3 Months Ended
	Jun. 30, 2020
Change In Contract With Customer Asset And Liability [Abstract]
Revenue Recognition and Contracts with Customers	4. REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS Disaggregation of Revenue The Company disaggregates revenue based on the method of measuring satisfaction of the performance obligation either over time or at a point in time. Additionally, the Company disaggregates revenue based upon the end market where products and services are transferred to the customer. The Company’s principal operating segments and related revenue are discussed in Note 13, Segments. The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the three months ended June 30, 2020 and 2019: Three Months Ended June 30, 2020 2019 Systems & Support Satisfied over time $ 103,348 $ 129,242 Satisfied at a point in time 130,948 175,401 Revenue from contracts with customers 234,296 304,643 Amortization of acquired contract liabilities 3,719 8,125 Total revenue 238,015 312,768 Aerospace Structures Satisfied over time $ 243,639 $ 372,237 Satisfied at a point in time 6,155 36,412 Revenue from contracts with customers 249,794 408,649 Amortization of acquired contract liabilities 7,268 8,814 Total revenue 257,062 417,463 $ 495,077 $ 730,231 The following table shows disaggregated net sales by end market (excluding intercompany sales) for the three months ended June 30, 2020 and 2019: Three Months Ended June 30, 2020 2019 Systems & Support Commercial aerospace $ 92,180 $ 175,319 Military 120,384 95,357 Business jets 10,374 16,147 Regional 5,875 10,373 Non-aviation 5,483 7,447 Revenue from contracts with customers 234,296 304,643 Amortization of acquired contract liabilities 3,719 8,125 Total revenue $ 238,015 $ 312,768 Aerospace Structures Commercial aerospace $ 140,971 $ 229,640 Military 38,256 27,600 Business jets 65,952 121,149 Regional 4,611 30,255 Non-aviation 4 5 Revenue from contracts with customers 249,794 408,649 Amortization of acquired contract liabilities 7,268 8,814 Total revenue 257,062 417,463 $ 495,077 $ 730,231 Contract Assets and Liabilities Contract assets primarily represent revenues recognized for performance obligations that have been satisfied or partially satisfied but for which amounts have not been billed. This typically occurs when revenue is recognized over time but the Company's contractual right to bill the customer and receive payment is conditional upon the satisfaction of additional performance obligations in the contract, such as final delivery of the product. Contract assets are recognized when the revenue associated with the contract is recognized prior to billing and derecognized when billed in accordance with the terms of the contract. The Company pools contract assets that share underlying risk characteristics and records an allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. Contract assets are presented net of this reserve on the consolidated balance sheets. For the three months ended June 30, 2020 and 2019 , credit loss expense and writ e-offs related to contract assets were immaterial. Contract liabilities are recorded when customers remit contractual cash payments in advance of the Company satisfying performance obligations under contractual arrangements, including those with performance obligations to be satisfied over a period of time. Contract liabilities other than those pertaining to forward loss reserves are derecognized when or as revenue is recognized. Contract modifications can also impact contract asset and liability balances. When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications that are for goods or services that are not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification to an existing contract on the transaction price and our measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation, which are recognized prospectively. Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes our contract assets and liabilities balances: June 30, 2020 March 31, 2020 Change Contract assets $ 223,157 $ 267,079 $ (43,922 ) Contract liabilities (342,604 ) (386,585 ) 43,981 Net contract liability $ (119,447 ) $ (119,506 ) $ 59 The Company recognized revenue due to changes in estimates associated with performance obligations satisfied or partially satisfied in previous periods of $1,560. The change in contract assets is the result of revenue recognized in excess of amounts billed during the three months ended June 30, 2020. The change in contract liabilities is the result of revenue recognized in excess of the receipt of additional customer advances during the three months ended June 30, 2020. Additionally, approximately $104,829 of contract assets and $20,517 of contract liabilities are classified as held for sale on the accompanying condensed consolidated balance sheets of June 30, 2020. For the three months ended June 30, 2020, the Company recognized $49,974 of revenue that was included in the contract liability balance at the beginning of the period. Noncurrent contract assets presented in other, net on the accompanying consolidated balance sheets as of June 30, 2020 and March 31, 2020, were $19,173 and $22,662, respectively. Noncurrent contract liabilities presented in other noncurrent liabilities on the accompanying consolidated balance sheets as of June 30, 2020 and March 31, 2020, were $143,141 and $91,265, respectively. Performance Obligations Customers generally contract with the Company for requirements in a segment relating to a specific program, and the Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. A single contract may contain multiple performance obligations consisting of both recurring and nonrecurring elements. As of June 30, 2020, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below. Total Less than 1 year 1-3 years 4-5 years More than 5 years Unsatisfied performance obligations $ 3,527,122 $ 1,517,354 $ 1,357,902 $ 363,626 $ 288,240

Leases

Leases	3 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	5. LEASES The components of lease expense for the three months ended June 30, 2020 and 2019, are disclosed in the table below. Three Months Ended June 30, Lease Cost Financial Statement Classification 2020 2019 Operating lease cost Cost of sales or Selling, general and administrative expense $ 5,623 $ 6,502 Variable lease cost Cost of sales or Selling, general and administrative expense 2,097 1,842 Financing Lease Cost: Amortization of right-of-use assets Depreciation and amortization 1,376 1,349 Interest on lease liability Interest expense and other 406 170 Total lease cost (1) $ 9,502 $ 9,863 (1) Total lease cost does not include short-term leases or sublease income, both of which are immaterial. Supplemental cash flow information for the three months ended June 30, 2020 and 2019, is disclosed in the table below. Three Months Ended June 30, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows used in operating leases $ 4,539 $ 4,849 Operating cash flows used in finance leases 407 171 Financing cash flows used in finance leases 2,040 2,673 ROU assets obtained in exchange for lease liabilities Operating leases 4,858 1,831 Finance leases 352 767 Supplemental balance sheet information related to leases as of June 30, 2020 and March 31, 2020, is disclosed in the table below. Leases Classification June 30, 2020 March 31, 2020 Assets Operating lease ROU assets Other, net Assets held for sale $ 62,562 $ 61,461 Finance lease ROU assets, cost Property and equipment, net Assets held for sale 41,565 39,461 Accumulated amortization Property and equipment, net Assets held for sale (19,997 ) (18,650 ) Finance lease ROU assets, net 21,568 20,811 Total lease assets $ 84,130 $ 82,272 Liabilities Current Operating Accrued expenses Liabilities related to assets held for sale $ 13,256 $ 13,139 Finance Current portion of long-term debt Liabilities related to assets held for sale 7,558 7,336 Noncurrent Operating Other noncurrent liabilities Liabilities related to assets held for sale 57,374 54,687 Finance Long-term debt, less current portion Liabilities related to assets held for sale 16,589 16,597 Total lease liabilities $ 94,777 $ 91,759 Information related to lease terms and discount rates as of June 30, 2020 and March 31, 2020, is disclosed in the table below. June 30, 2020 March 31, 2020 Weighted average remaining lease term (years) Operating leases 7.2 7.2 Finance leases 6.7 6.9 Weighted average discount rate Operating leases 6.2 % 6.2 % Finance leases 6.1 % 5.9 % The maturity of the Company's lease liabilities as of June 30, 2020, is disclosed in the table below. Operating leases Finance leases Total FY2021 (remaining of year) $ 13,015 $ 6,759 $ 19,774 FY2022 15,632 6,308 21,940 FY2023 12,190 3,354 15,544 FY2024 9,364 2,702 12,066 FY2025 8,100 1,356 9,456 Thereafter 30,099 9,905 40,004 Total lease payments 88,400 30,384 118,784 Less: Imputed interest (17,770 ) (6,237 ) (24,007 ) Total lease liabilities $ 70,630 $ 24,147 $ 94,777

Inventories

Inventories	3 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Inventories	6. INVENTORIES Inventories are stated at the lower of cost (average-cost or specific-identification methods) or market. The components of inventories are as follows: June 30, 2020 March 31, 2020 Raw materials $ 58,724 $ 32,552 Work-in-process, including manufactured and purchased components 295,874 312,953 Finished goods 56,331 50,011 Rotable assets 56,176 57,460 Total inventories $ 467,105 $ 452,976

Long Term Debt

Long Term Debt	3 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Long Term Debt	7. Long-term debt consists of the following: June 30, 2020 March 31, 2020 Revolving credit facility $ 175,000 $ 400,000 Receivable securitization facility 55,800 75,000 Finance leases 24,141 23,933 Senior secured notes due 2024 525,000 525,000 Senior notes due 2022 300,000 300,000 Senior notes due 2025 500,000 500,000 Less: debt issuance costs (15,320 ) (16,426 ) 1,564,621 1,807,507 Less: current portion 7,555 7,336 $ 1,557,066 $ 1,800,171 Revolving Credit Facility On May 22, 2020, the Company and its subsidiary co-borrowers and guarantors entered into a Twelfth Amendment to the Third Amended and Restated Credit Agreement (the “Twelfth Amendment” and the Credit Agreement as amended by the Twelfth Amendment, the “Amended Credit Agreement”) with the Administrative Agent and the Lenders party thereto. Among other things, the Twelfth Amendment: (i) limits the amount of cash and cash equivalents in the United States the Company can hold on its balance sheet to $50,000, subject to certain limited exceptions; (ii) authorizes the completion of asset sales with respect to previously identified Specified TAS Business Units (as defined in the Amended Credit Agreement); (iii) provides for a reserve against the availability of up to 75% of the proceeds of Specified Asset Sales (as defined in the Amended Credit Agreement); (iv) increases the interest rate margins applicable to the revolving credit loans by 0.50%; (v) modifies the interest coverage ratio covenant to require a minimum interest coverage ratio of (i) 1.85 to 1.00 for the fiscal quarter ending June 30, 2020, (ii) 1.35 to 1.00 for the fiscal quarter ending September 30, 2020, (iii) 1.00 to 1.00 for the fiscal quarter ending December 31, 2020, (iv) 1.15 to 1.00 for the fiscal quarter ending March 31, 2021, (v) 1.75 to 1.00 for the fiscal quarter ending June 30, 2021, (vi) 2.00 to 1.00 for the fiscal quarter ending September 30, 2021, (vii) 2.25 to 1.00 for the fiscal quarters ending December 31, 2021 and March 31, 2022, and (viii) 2.75 to 1.00 for each fiscal quarter ending thereafter; (vi) suspends the senior secured leverage ratio covenant through the fiscal quarter ending March 31, 2021 and modifies the senior secured leverage ratio for subsequent fiscal quarters to require the senior secured leverage ratio not to exceed (i) 4.50 to 1.00 for the fiscal quarter ending June 30, 2021, (ii) 3.75 to 1.00 for the fiscal quarter ending September 30, 2021, (iii) 3.50 to 1.00 for the fiscal quarters ending December 31, 2021 and March 31, 2022, and (iv) 3.25 to 1.00 for each fiscal quarter ending thereafter and; (vii) modifies the first lien secured leverage ratio covenant so that the maximum permitted first lien leverage ratio steps down from 2.50 to 1.00 to 2.00 to 1.00, commencing with the fiscal quarter ending March 31, 2021. Pursuant to the Amended Credit Agreement, the Company can borrow, repay and re-borrow revolving credit loans, and cause to be issued letters of credit, in an aggregate principal amount not to exceed $600,000 outstanding at any time. The loans borrowed under the Amended Credit Agreement bear interest at the Company’s option, at a base rate plus a margin of 2.50% to 3.00%, or a eurodollar rate, plus a margin of 3.50% to 4.00%. The applicable interest rate is based upon the Company’s ratio of total indebtedness to earnings before interest, taxes, depreciation and amortization; provided, however, that during the Pricing Restriction Period (as defined in the Amended Credit Agreement), the loans will bear interest at the highest rate per annum. In addition, the Company is required to pay a commitment fee of 0.30% to 0.50% on the unused portion of the revolving credit commitments depending on the Company’s total leverage ratio and whether a Pricing Restriction Period (as defined in the Amended Credit Agreement) is in effect. The Company’s obligations under the Amended Credit Agreement are guaranteed by the Company’s domestic subsidiaries. The obligations under the Amended Credit Agreement and related documents are secured by liens on substantially all assets of the Company and its domestic subsidiaries pursuant to a Third Amended and Restated Guarantee and Collateral Agreement, dated as of September 23, 2019, among the administrative agent, the Company and the subsidiaries of the Company party thereto. At June 30, 2020, there were $175,000 in borrowings and $21,995 in letters of credit outstanding under the Credit Facility, primarily to support insurance policies. At March 31, 2020, there were $400,000 in outstanding borrowings and $22,338 in letters of credit outstanding under the Credit Facility, primarily to support insurance policies. The level of unused borrowing capacity under the Credit Facility varies from time to time depending in part upon its compliance with financial and other covenants set therein. The Amended Credit Agreement contains certain affirmative and negative covenants, including limitations on specified levels of indebtedness to earnings before interest, taxes, depreciation and amortization, and interest coverage requirements, and includes limitations on, among other things, liens, mergers, consolidations, sales of assets, and incurrence of debt. If an event of default were to occur under the Amended Credit Agreement, the lenders would be entitled to declare all amounts borrowed under it immediately due and payable. The occurrence of an event of default under the Credit Facility could also cause the acceleration of obligations under certain other agreements. The Company is currently in compliance with all such covenants. As of June 30, 2020, the Company had borrowing capacity under this agreement of $323,058 after reductions for borrowings, letters of credit outstanding under the facility and consideration of covenant limitations. On May 3, 2021, revolving credit commitments under the Amended Credit Agreement will decrease to approximately $407,000. In connection with the Twelfth Amendment to the Credit Agreement, the Company incurred $4,266 of financing costs. These costs, along with the $10,830 of unamortized financing costs subsequent to the Eleventh Amendment, are being amortized over the remaining term of the Amended Credit Agreement on a lender-by-lender basis. Receivables Securitization Program In December 2019, the Company amended its receivable securitization facility (the "Securitization Facility") decreasing the purchase limit from $125,000 to $75,000 and extending the term through December 2022. In connection with the Securitization Facility, the Company sells on a revolving basis certain eligible accounts receivable to Triumph Receivables, LLC, a wholly-owned special-purpose entity, which in turn sells a percentage ownership interest in the receivables to commercial paper conduits sponsored by financial institutions. The Company is the servicer of the trade accounts receivable under the Securitization Facility. As of June 30, 2020, the maximum amount available under the Securitization Facility was $75,000. Interest rates are based on LIBOR plus a program fee and a commitment fee. The program fee is 0.13% on the amount outstanding under the Securitization Facility. Additionally, the commitment fee is 0.50% on 100.00% of the maximum amount available under the Securitization Facility. The Company secures its trade accounts receivable, which are generally non-interest-bearing, in transactions that are accounted for as borrowings pursuant to ASC 860, Transfers and Servicing The agreement governing the Securitization Facility contains restrictions and covenants, including limitations on the making of certain restricted payments; creation of certain liens; and certain corporate acts such as mergers, consolidations and the sale of all or substantially all the Company's assets. Senior Secured Notes Due 2024 On September 23, 2019, the Company issued $525,000 principal amount of 6.250% Senior Secured Notes due September 15, 2024 (the "2024 Notes"). The 2024 Notes were sold at 100% of principal amount and have an effective interest yield of 6.250%. Interest on the 2024 Notes is payable semiannually in cash in arrears on March 15 and September 15 of each year. The 2024 Notes are secured by second-priority liens on all of the Company's and the subsidiary guarantors' assets that secure all of the indebtedness under the Credit Facility and certain hedging and cash management obligations. Senior Notes due 2021 On September 23, 2019, the Company called all outstanding 4.875% Senior Notes due 2021 (the "2021 Notes") and discharged the 2021 Notes by irrevocably depositing with the 2021 Notes trustee sufficient funds to pay all principal and accrued interest through October 23, 2019. On October 23, 2019, the Company redeemed $375,000 principal amount of the 2021 Notes with the proceeds of the 2024 Notes. Senior Notes due 2022 On June 3, 2014, the Company issued $300,000 principal amount of 5.250% Senior Notes due June 1, 2022 (the "2022 Notes"). The 2022 Notes were sold at 100% of principal amount and have an effective interest yield of 5.250%. Interest on the 2022 Notes accrues at the rate of 5.250% per annum and is payable semiannually in cash in arrears on June 1 and December 1 of each year. Senior Notes Due 2025 On August 17, 2017, the Company issued $500,000 principal amount of 7.750% Senior Notes due August 15, 2025 (the "2025 Notes"). The 2025 Notes were sold at 100% of principal amount and have an effective interest yield of 7.750%. Interest on the 2025 Notes accrues at the rate of 7.750% per annum and is payable semiannually in cash in arrears on February 15 and August 15 of each year. Financial Instruments Not Recorded at Fair Value Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the consolidated financial statements are as follows: June 30, 2020 March 31, 2020 Carrying Value Fair Value Carrying Value Fair Value $ 1,564,621 $ 1,347,151 $ 1,807,507 $ 1,559,455 The fair value of the long-term debt was calculated based on either interest rates available for debt with terms and maturities similar to the Company's existing debt arrangements or broker quotes on our existing debt (Level 2 inputs). Interest paid on indebtedness during the three months ended June 30, 2020 and 2019, amounted to $13,464 and $12,896, respectively.

Earnings per Share

Earnings per Share	3 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings per Share	8. EARNINGS PER SHARE The following is a reconciliation between the weighted average outstanding shares used in the calculation of basic and diluted earnings per share: Three Months Ended June 30, (in thousands) 2020 2019 Weighted average common shares outstanding – basic 51,860 49,854 Net effect of dilutive stock options and non-vested stock (1) — 441 Weighted average common shares outstanding – diluted 51,860 50,295 (1) For the three months ended June 30, 2020 and 2019, the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

Income Taxes

Income Taxes	3 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	9. INCOME TAXES The Company follows the Income Taxe The Company's policy is to release the tax effects from accumulated other comprehensive income when the all of the related assets or liabilities that gave rise to the accumulated other comprehensive income have been derecognized. The Company has classified uncertain tax positions as noncurrent income tax liabilities unless expected to be paid in one year. Penalties and tax-related interest expense are reported as a component of income tax expense and are not significant. As of June 30, 2020 and March 31, 2020, the total amount of unrecognized tax benefits was $18,971 and $18,965, respectively, most of which would impact the effective rate, if recognized. The Company does not anticipate that total unrecognized tax benefits will be reduced in the next 12 months. As of June 30, 2020, the Company has a valuation allowance against principally all of its net deferred tax assets given insufficient positive evidence to support the realization of the Company’s deferred tax assets. The Company intends to continue maintaining a valuation allowance on its deferred tax assets until there is sufficient positive evidence to support the reversal of all or some portion of these allowances. A reduction in the valuation allowance could result in a significant decrease in income tax expense in the period that the release is recorded. However, the exact timing and amount of the reduction in its valuation allowance is unknown at this time and will be subject to the earnings level the Company achieves during fiscal 2021 and future periods. The effective income tax rate for the three months ended June 30, 2020, was (0.3)% as compared with 21.0% for the three months ended June 30, 2019. For the three months ended June 30, 2020, the effective tax rate reflected a limitation on the recognition of tax benefits due to the full valuation allowance. With few exceptions, the Company is no longer subject to U.S. federal, state, or local income tax examinations for fiscal years ended before March 31, 2014, or foreign income tax examinations by tax authorities for fiscal years ended before March 31, 2013. As of June 30, 2020, the Company is not subject to any income tax examinations. The Company has filed appeals in a prior state examination related to fiscal years ended March 31, 1999 through March 31, 2005.

Long-Lived Assets

Long-Lived Assets	3 Months Ended
	Jun. 30, 2020
Property Plant And Equipment [Abstract]
Long-Lived Assets	10. LONG-LIVED ASSETS As disclosed in Note 3, in May 2020, the Company’s Board of Directors committed to a plan (i) to sell its composites manufacturing operations located in Milledgeville, Georgia and Rayong, Thailand and (ii) to transfer the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities. These planned divestitures represent the divestiture of certain assets and liabilities of an operating business within the Aerospace Structures segment that the Company has identified as an asset group pursuant to the provisions of ASC 360, Property, Plant, and Equipment the lowest level of the inputs that are significant to the fair value measurement are unobservable inputs that fall within Level 3 of the fair value hierarchy. In accordance with ASC 360, the Company allocated the resulting impairment to the specific long-lived assets within the asset group on a pro rata basis, except that the loss allocated to an individual long-lived asset of the group did not reduce the carrying amount of that asset below its estimated fair value. As a result, the Company recognized a total noncash impairment charge of $252,382, primarily allocated to definite-lived intangible assets, which is presented as “Impairment of long-lived assets” on the condensed consolidated statements of operations.

Pension and Other Postretiremen

Pension and Other Postretirement Benefit Plans	3 Months Ended
	Jun. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefit Plans	11. PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS The Company sponsors several defined benefit pension plans covering some of its employees. Certain employee groups are ineligible to participate in the plans or have ceased to accrue additional benefits under the plans based upon their service to the Company or years of service accrued under the defined benefit pension plans. Benefits under the defined benefit plans are based on years of service and, for most non-represented employees, on average compensation for certain years. It is the Company’s policy to fund at least the minimum amount required for all qualified plans, using actuarial cost methods and assumptions acceptable under U.S. government regulations (and for non-U.S. plans, acceptable under local regulations), by making payments into a separate trust. In addition to the defined benefit pension plans, the Company provides certain healthcare and life insurance benefits for eligible retired employees. Such benefits are unfunded. Employees achieve eligibility to participate in these contributory plans upon retirement from active service if they meet specified age and years of service requirements. Election to participate for some employees must be made at the date of retirement. Qualifying dependents at the date of retirement may also be eligible for medical coverage. Current plan documents reserve the right to amend or terminate the plans at any time, subject to applicable collective bargaining requirements for represented employees. From time to time, changes have been made to the benefits provided to various groups of plan participants. Premiums charged to most retirees for medical coverage prior to age 65 are based on years of service and are adjusted annually for changes in the cost of the plans as determined by an independent actuary. In addition to this medical inflation cost-sharing feature, the plans also have provisions for deductibles, co-payments, coinsurance percentages, out-of-pocket limits, schedules of reasonable fees, preferred provider networks, coordination of benefits with other plans and a Medicare carve-out. In accordance with the Compensation – Retirement Benefits Net Periodic Benefit Plan Costs The components of net periodic benefit costs (income) for our postretirement benefit plans are shown in the following table: Pension Benefits Three Months Ended June 30, 2020 2019 Components of net periodic benefit costs: Service cost $ 377 $ 581 Interest cost 16,087 18,661 Expected return on plan assets (33,002 ) (35,739 ) Amortization of prior service credits 243 (278 ) Amortization of net loss 8,223 5,359 Net periodic benefit income $ (8,072 ) $ (11,416 ) Other Postretirement Benefits Three Months Ended June 30, 2020 2019 Components of net periodic benefit costs: Service cost $ — $ 44 Interest cost 28 863 Amortization of prior service credits (1,276 ) (1,164 ) Amortization of gain (1,191 ) (2,442 ) Net periodic benefit income $ (2,439 ) $ (2,699 )

Stockholders' Deficit

Stockholders' Deficit	3 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Stockholders' Deficit	12. STOCKHOLDERS' DEFICIT Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss ("AOCI") by component for the three months ended June 30, 2020 and 2019, were as follows: Currency Translation Adjustment Unrealized Gains and Losses on Derivative Instruments Defined Benefit Pension Plans and Other Postretirement Benefits Total (1) March 31, 2020 $ (62,045 ) $ (4,303 ) $ (653,080 ) $ (719,428 ) AOCI before reclassifications 919 3,658 — 4,577 Amounts reclassified from AOCI — (1,558 ) 5,793 (2) 4,235 Net current period OCI 919 2,100 5,793 8,812 June 30, 2020 (61,126 ) (2,203 ) (647,287 ) (710,616 ) March 31, 2019 $ (48,606 ) $ (1,130 ) $ (437,948 ) $ (487,684 ) AOCI before reclassifications (2,683 ) 95 — (2,588 ) Amounts reclassified from AOCI — (414 ) 1,409 (2) 995 Net current period OCI (2,683 ) (319 ) 1,409 (1,593 ) June 30, 2019 (51,289 ) (1,449 ) (436,539 ) (489,277 ) (1) Net of tax. (2) Includes amortization of actuarial losses and recognized prior service (credits) costs, which are included in the net periodic pension cost of which a portion is allocated to production as inventoried costs.

Segments

Segments	3 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Segments	13. The Company reports financial performance based on the following two reportable segments: Systems & Support and Aerospace Structures. The Company’s reportable segments are aligned with how the business is managed, and the Company's views of the markets it serves. The Chief Operating Decision Maker (the "CODM") evaluates performance and allocates resources based upon review of segment information. The CODM utilizes earnings before interest, income taxes, depreciation and amortization, and pension (“Adjusted EBITDAP”) as a primary measure of segment profitability to evaluate performance of its segments and allocate resources. Segment Adjusted EBITDAP is total segment revenue reduced by operating expenses (less depreciation and amortization) identifiable with that segment. Corporate includes general corporate administrative costs and any other costs not identifiable with one of the Company’s segments. The Company does not accumulate net sales information by product or service or groups of similar products and services, and therefore the Company does not disclose net sales by product or service because to do so would be impracticable. Selected financial information for each reportable segment is as follows: Three Months Ended June 30, 2020 Total Corporate & Eliminations Systems & Support Aerospace Structures Net sales to external customers $ 495,077 $ — $ 238,015 $ 257,062 Intersegment sales (eliminated in consolidation) — (2,687 ) 1,872 815 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 38,452 — 30,068 8,384 Reconciliation of segment profit to income (loss) before income taxes Depreciation and amortization (28,602 ) (856 ) (8,356 ) (19,390 ) Interest expense and other, net (34,957 ) Corporate expenses (18,061 ) Share-based compensation expense (2,786 ) Amortization of acquired contract liabilities 10,987 Non-service defined benefit income 10,888 Impairment of long-lived assets (252,382 ) Income before income taxes (276,461 ) Total capital expenditures $ 7,723 $ 411 $ 6,283 $ 1,029 Total assets $ 2,266,320 $ 118,849 $ 1,436,980 $ 710,491 Three Months Ended June 30, 2019 Total Corporate & Eliminations Systems & Support Aerospace Structures Net sales to external customers $ 730,231 $ — $ 312,768 $ 417,463 Intersegment sales (eliminated in consolidation) — (2,553 ) 838 1,715 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 82,608 — 44,080 38,528 Reconciliation of segment profit to income (loss) before income taxes Depreciation and amortization (44,050 ) (834 ) (8,157 ) (35,059 ) Interest expense and other, net (27,491 ) Corporate expenses (14,424 ) Share-based compensation expense (2,426 ) Loss on sale of assets and businesses (3,136 ) Amortization of acquired contract liabilities 16,939 Non-service defined benefit income 14,875 Income before income taxes 22,895 Total capital expenditures $ 8,090 $ 233 $ 3,884 $ 3,973 During the three months ended June 30, 2020 and 2019, the Company had foreign sales of $92,197 and $175,340, respectively.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Jun. 30, 2020
Commitments And Contingencies [Abstract]
Commitments and Contingencies	14. In the ordinary course of business, the Company is involved in disputes, claims and lawsuits with employees, suppliers and customers, as well as governmental and regulatory inquiries, that it deems to be immaterial. Some may involve claims or potential claims of substantial damages, fines, penalties or injunctive relief. While the Company cannot predict the outcome of any pending or future litigation or proceeding and no assurances can be given, the Company does not believe that any pending matter will have a material effect, individually or in the aggregate, on its financial position or results of operations. As the Company completes its restructuring plans as disclosed in Note 15, including the disposal of certain facilities, the Company may be exposed to additional costs such as environmental remediation obligations, lease termination costs, or supplier claims which may have a material effect on its financial position or results of operations when such matters arise and a reasonable estimate of the costs can be made.

Restructuring

Restructuring	3 Months Ended
	Jun. 30, 2020
Restructuring And Related Activities [Abstract]
Restructuring	15. As disclosed in the Company's Form 10-K for the fiscal year ended March 31, 2020, during the fiscal years ended March 31, 2017 and 2016, the Company committed to restructuring plans involving certain of its businesses, as well as the consolidation of certain of its facilities. With the exception of certain consolidations to be completed in future years, these plans were substantially complete as of March 31, 2020. The Company incurred costs of $15,439 associated with new restructuring plans during the three months ended June 30, 2020. We estimate that we will incur costs in each of our segments for third-party consulting costs and severance, primarily related to our cost-reductions, of approximately $25,000 to $27,000 for the fiscal year ended March 31, 2021.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Standards Recently Implemented and Standards Issued Not Yet Implemented	Standards Recently Implemented Adoption of ASU 2016-13 In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. The Company adopted ASU 2018-13 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures. Standards Issued Not Yet Implemented In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans
Use of Estimates	Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue Recognition and Contract Balances	Revenue Recognition and Contract Balances The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts. The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes. Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. However, a subset of the Company’s current contracts includes significant financing components because the timing of the transfer of the underlying products and services under contract are at the customers’ discretion. For these contracts, the Company adjusts the transaction price to reflect the effects of the time value of money. The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis. The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information. Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset. With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements. Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required, and are included in contract liabilities on the accompanying consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic; however, actual results could differ materially from those estimates. For the three months ended June 30, 2020, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased revenue and decreased operating loss, net loss and loss per share by approximately $1,560, $3,326, $3,326, and $0.06, respectively. For the three months ended June 30, 2019, cumulative catch-up adjustments resulting from changes in estimates decreased net sales, operating income, net income, and earnings per share by approximately ($1,149), ($4,967), ($3,924), and ($0.08), respectively. Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred. Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion. In connection with several prior acquisitions, the Company assumed existing long-term contracts. Based on review of these contracts at the acquisition date , the Company concluded that the terms of certain contracts were either more or less favorable than could be realized in market transactions as of the date of the acquisition. As a result, the Company recognized acquired contract liabilities, net of acquired contract assets as of the acquisition date of each respective acquisition, based on the present value of the difference between the contractual cash flows of the executory contracts and the estimated cash flows had the contracts been executed at the acquisition date. The liabilities principally relate to long-term contracts that were initially executed several years prior to the respective acquisition. The Company measured these net liabilities in the year they were acquired under the measurement provisions of Accounting Standards Codification (“ASC”) 820, Fair Value Measurement , which is based on the price to transfer the obligation to a market participant at the measurement date, assuming that the net liabilities will remain outstanding in the marketplace. The portion of the Company's revenue resulting from transactions other than contracts with customers pertains to the amortization of these acquired contract liabilities.
Trade and Other Receivables, net	Trade and Other Receivables, net Trade and other receivables are recorded net of an allowance for expected credit losses. Trade and other receivables include amounts billed and currently due from customers and amounts retained by the customer pending contract completion. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company pools receivables that share underlying risk characteristics and records the allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. The Company writes off balances against the allowance for expected credit losses when collectibility is deemed remote. The Company's trade and other receivables are exposed to credit risk; however, the risk is limited due to the diversity of the customer base. For the three months ended June 30, 2020 and 2019, credit loss expense and write offs were immaterial.
Leases	Leases The Company leases office space, manufacturing facilities, land, vehicles, and equipment. The Company determines if an agreement is or contains a lease at the lease inception date and recognizes right-of-use (“ROU”) assets and lease liabilities at the lease commencement date. A ROU asset and corresponding lease liability are not recorded for leases with an initial term of 12 months or less (“short-term leases”). ROU assets represent the Company's right to use an underlying asset during the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. The determination of the length of lease terms is affected by options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The existence of significant economic incentive is the primary consideration when assessing whether the Company is reasonably certain of exercising an option in a lease. Both finance and operating lease ROU assets and liabilities are recognized at commencement date and measured as the present value of lease payments to be made over the lease term. As the interest rate implicit in the lease is not readily available for most of the Company's leases, the Company uses its estimated incremental borrowing rate in determining the present value of lease payments. The estimated incremental borrowing rate is derived from information available at the lease commencement date. The lease ROU asset recognized at commencement is adjusted for any lease payments related to initial direct costs, prepayments, and lease incentives. For operating leases, lease expense is recognized on a straight-line basis over the lease term. For finance leases, lease expense comprises the amortization of the ROU assets recognized on a straight-line basis generally over the shorter of the lease term or the estimated useful life of the underlying asset and interest on the lease liability. Variable lease payments not dependent on a rate or index are recognized when the event, activity, or circumstance in the lease agreement upon which those payments are contingent is probable of occurring and are presented in the same line of the consolidated balance sheet as the rent expense arising from fixed payments. The Company has lease agreements with lease and non-lease components. Non-lease components are combined with the related lease components and accounted for as lease components for all classes of underlying assets.
Concentration of Credit Risk	Concentration of Credit Risk The Company’s trade and other accounts receivable are exposed to credit risk. However, the risk is limited due to the diversity of the customer base and the customer base’s wide geographical area. Trade accounts receivable from The Boeing Company ("Boeing") (representing commercial, military and space) represented approximately 17% and 21% of total trade accounts receivable as of June 30, 2020 and March 31, 2020, respectively. Trade and other accounts receivable from Bombardier Inc. ("Bombardier") include receivables from transition services and represented approximately 19% and 16% as of June 30, 2020 and March 31, 2020, respectively. The Company had no other concentrations of credit risk of more than 10%. Sales to Boeing for the three months ended June 30, 2020, were $188,137, or 38% of net sales, of which $52,022 and $136,114 were from the Systems & Support and Aerospace Structures, respectively. Sales to Boeing for the three months ended June 30, 2019, were $245,315, or 34% of net sales, of which $61,032 and $184,282 were from the Systems & Support and Aerospace Structures, respectively. The percentage increase in sales to Boeing as compared with the prior period is driven entirely by military sales. Sales to Gulfstream Aerospace Corporation (“Gulfstream”) for the three months ended June 30, 2020, were $53,710, or 11% of net sales, of which $843 and $52,867 were from the Systems & Support and Aerospace Structures, respectively. Sales to Gulfstream for the three months ended June 30, 2019, were $102,315, or 14% of net sales, of which $855 and $101,459 were from the Systems & Support and Aerospace Structures, respectively. No other single customer accounted for more than 10% of the Company’s net sales. However, the loss of any significant customer, including Boeing and Gulfstream, could have a material adverse effect on the Company and its operating subsidiaries.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when measuring long-lived asset impairment in the current period (see Note 10), and to its pension and postretirement plan assets (see Note 11).
Supplemental Cash Flow Information	Supplemental Cash Flow Information For the three months ended June 30, 2020, the Company paid $360 for income taxes, net of income tax refunds received. For the three months ended June 30, 2019, the Company paid $1,280 as income tax refunds, net of refunds received.

Revenue Recognition and Contr_2

Revenue Recognition and Contracts with Customers (Tables)	3 Months Ended
	Jun. 30, 2020
Change In Contract With Customer Asset And Liability [Abstract]
Disaggregation of Revenue	The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the three months ended June 30, 2020 and 2019: Three Months Ended June 30, 2020 2019 Systems & Support Satisfied over time $ 103,348 $ 129,242 Satisfied at a point in time 130,948 175,401 Revenue from contracts with customers 234,296 304,643 Amortization of acquired contract liabilities 3,719 8,125 Total revenue 238,015 312,768 Aerospace Structures Satisfied over time $ 243,639 $ 372,237 Satisfied at a point in time 6,155 36,412 Revenue from contracts with customers 249,794 408,649 Amortization of acquired contract liabilities 7,268 8,814 Total revenue 257,062 417,463 $ 495,077 $ 730,231 The following table shows disaggregated net sales by end market (excluding intercompany sales) for the three months ended June 30, 2020 and 2019: Three Months Ended June 30, 2020 2019 Systems & Support Commercial aerospace $ 92,180 $ 175,319 Military 120,384 95,357 Business jets 10,374 16,147 Regional 5,875 10,373 Non-aviation 5,483 7,447 Revenue from contracts with customers 234,296 304,643 Amortization of acquired contract liabilities 3,719 8,125 Total revenue $ 238,015 $ 312,768 Aerospace Structures Commercial aerospace $ 140,971 $ 229,640 Military 38,256 27,600 Business jets 65,952 121,149 Regional 4,611 30,255 Non-aviation 4 5 Revenue from contracts with customers 249,794 408,649 Amortization of acquired contract liabilities 7,268 8,814 Total revenue 257,062 417,463 $ 495,077 $ 730,231
Summary of Contract Assets and Liabilities Balances	Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes our contract assets and liabilities balances: June 30, 2020 March 31, 2020 Change Contract assets $ 223,157 $ 267,079 $ (43,922 ) Contract liabilities (342,604 ) (386,585 ) 43,981 Net contract liability $ (119,447 ) $ (119,506 ) $ 59
Schedule of Performance Obligations that are Expected to Be Recognized in Future	As of June 30, 2020, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below. Total Less than 1 year 1-3 years 4-5 years More than 5 years Unsatisfied performance obligations $ 3,527,122 $ 1,517,354 $ 1,357,902 $ 363,626 $ 288,240

Leases (Tables)

Leases (Tables)	3 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Schedule of Components Lease Expense	The components of lease expense for the three months ended June 30, 2020 and 2019, are disclosed in the table below. Three Months Ended June 30, Lease Cost Financial Statement Classification 2020 2019 Operating lease cost Cost of sales or Selling, general and administrative expense $ 5,623 $ 6,502 Variable lease cost Cost of sales or Selling, general and administrative expense 2,097 1,842 Financing Lease Cost: Amortization of right-of-use assets Depreciation and amortization 1,376 1,349 Interest on lease liability Interest expense and other 406 170 Total lease cost (1) $ 9,502 $ 9,863 (1) Total lease cost does not include short-term leases or sublease income, both of which are immaterial.
Schedule of Supplemental Cash Flow Information	Supplemental cash flow information for the three months ended June 30, 2020 and 2019, is disclosed in the table below. Three Months Ended June 30, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows used in operating leases $ 4,539 $ 4,849 Operating cash flows used in finance leases 407 171 Financing cash flows used in finance leases 2,040 2,673 ROU assets obtained in exchange for lease liabilities Operating leases 4,858 1,831 Finance leases 352 767
Schedule of Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases as of June 30, 2020 and March 31, 2020, is disclosed in the table below. Leases Classification June 30, 2020 March 31, 2020 Assets Operating lease ROU assets Other, net Assets held for sale $ 62,562 $ 61,461 Finance lease ROU assets, cost Property and equipment, net Assets held for sale 41,565 39,461 Accumulated amortization Property and equipment, net Assets held for sale (19,997 ) (18,650 ) Finance lease ROU assets, net 21,568 20,811 Total lease assets $ 84,130 $ 82,272 Liabilities Current Operating Accrued expenses Liabilities related to assets held for sale $ 13,256 $ 13,139 Finance Current portion of long-term debt Liabilities related to assets held for sale 7,558 7,336 Noncurrent Operating Other noncurrent liabilities Liabilities related to assets held for sale 57,374 54,687 Finance Long-term debt, less current portion Liabilities related to assets held for sale 16,589 16,597 Total lease liabilities $ 94,777 $ 91,759
Schedule of Information Related to Lease Terms and Discount Rates	Information related to lease terms and discount rates as of June 30, 2020 and March 31, 2020, is disclosed in the table below. June 30, 2020 March 31, 2020 Weighted average remaining lease term (years) Operating leases 7.2 7.2 Finance leases 6.7 6.9 Weighted average discount rate Operating leases 6.2 % 6.2 % Finance leases 6.1 % 5.9 %
Schedule of Maturity of Lease Liabilities	The maturity of the Company's lease liabilities as of June 30, 2020, is disclosed in the table below. Operating leases Finance leases Total FY2021 (remaining of year) $ 13,015 $ 6,759 $ 19,774 FY2022 15,632 6,308 21,940 FY2023 12,190 3,354 15,544 FY2024 9,364 2,702 12,066 FY2025 8,100 1,356 9,456 Thereafter 30,099 9,905 40,004 Total lease payments 88,400 30,384 118,784 Less: Imputed interest (17,770 ) (6,237 ) (24,007 ) Total lease liabilities $ 70,630 $ 24,147 $ 94,777

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Schedule of Components of Inventories	Inventories are stated at the lower of cost (average-cost or specific-identification methods) or market. The components of inventories are as follows: June 30, 2020 March 31, 2020 Raw materials $ 58,724 $ 32,552 Work-in-process, including manufactured and purchased components 295,874 312,953 Finished goods 56,331 50,011 Rotable assets 56,176 57,460 Total inventories $ 467,105 $ 452,976

Long Term Debt (Tables)

Long Term Debt (Tables)	3 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Long-term debt consists of the following: June 30, 2020 March 31, 2020 Revolving credit facility $ 175,000 $ 400,000 Receivable securitization facility 55,800 75,000 Finance leases 24,141 23,933 Senior secured notes due 2024 525,000 525,000 Senior notes due 2022 300,000 300,000 Senior notes due 2025 500,000 500,000 Less: debt issuance costs (15,320 ) (16,426 ) 1,564,621 1,807,507 Less: current portion 7,555 7,336 $ 1,557,066 $ 1,800,171
Schedule of Carrying Amounts and Estimated Fair Values of Long-term Debt	Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the consolidated financial statements are as follows: June 30, 2020 March 31, 2020 Carrying Value Fair Value Carrying Value Fair Value $ 1,564,621 $ 1,347,151 $ 1,807,507 $ 1,559,455

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Summary of Reconciliation between Weighted-average Common Shares Outstanding used in Calculation of Basis and Diluted Earnings Per Share	The following is a reconciliation between the weighted average outstanding shares used in the calculation of basic and diluted earnings per share: Three Months Ended June 30, (in thousands) 2020 2019 Weighted average common shares outstanding – basic 51,860 49,854 Net effect of dilutive stock options and non-vested stock (1) — 441 Weighted average common shares outstanding – diluted 51,860 50,295 (1) For the three months ended June 30, 2020 and 2019, the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

Pension and Other Postretirem_2

Pension and Other Postretirement Benefit Plans (Tables)	3 Months Ended
	Jun. 30, 2020
Compensation And Retirement Disclosure [Abstract]
Schedule of Components of Net Periodic Benefit Cost (Income)	The components of net periodic benefit costs (income) for our postretirement benefit plans are shown in the following table: Pension Benefits Three Months Ended June 30, 2020 2019 Components of net periodic benefit costs: Service cost $ 377 $ 581 Interest cost 16,087 18,661 Expected return on plan assets (33,002 ) (35,739 ) Amortization of prior service credits 243 (278 ) Amortization of net loss 8,223 5,359 Net periodic benefit income $ (8,072 ) $ (11,416 ) Other Postretirement Benefits Three Months Ended June 30, 2020 2019 Components of net periodic benefit costs: Service cost $ — $ 44 Interest cost 28 863 Amortization of prior service credits (1,276 ) (1,164 ) Amortization of gain (1,191 ) (2,442 ) Net periodic benefit income $ (2,439 ) $ (2,699 )

Stockholders' Deficit (Tables)

Stockholders' Deficit (Tables)	3 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Loss	Changes in accumulated other comprehensive loss ("AOCI") by component for the three months ended June 30, 2020 and 2019, were as follows: Currency Translation Adjustment Unrealized Gains and Losses on Derivative Instruments Defined Benefit Pension Plans and Other Postretirement Benefits Total (1) March 31, 2020 $ (62,045 ) $ (4,303 ) $ (653,080 ) $ (719,428 ) AOCI before reclassifications 919 3,658 — 4,577 Amounts reclassified from AOCI — (1,558 ) 5,793 (2) 4,235 Net current period OCI 919 2,100 5,793 8,812 June 30, 2020 (61,126 ) (2,203 ) (647,287 ) (710,616 ) March 31, 2019 $ (48,606 ) $ (1,130 ) $ (437,948 ) $ (487,684 ) AOCI before reclassifications (2,683 ) 95 — (2,588 ) Amounts reclassified from AOCI — (414 ) 1,409 (2) 995 Net current period OCI (2,683 ) (319 ) 1,409 (1,593 ) June 30, 2019 (51,289 ) (1,449 ) (436,539 ) (489,277 ) (1) Net of tax. (2) Includes amortization of actuarial losses and recognized prior service (credits) costs, which are included in the net periodic pension cost of which a portion is allocated to production as inventoried costs.

Segments (Tables)

Segments (Tables)	3 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income	Selected financial information for each reportable segment is as follows: Three Months Ended June 30, 2020 Total Corporate & Eliminations Systems & Support Aerospace Structures Net sales to external customers $ 495,077 $ — $ 238,015 $ 257,062 Intersegment sales (eliminated in consolidation) — (2,687 ) 1,872 815 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 38,452 — 30,068 8,384 Reconciliation of segment profit to income (loss) before income taxes Depreciation and amortization (28,602 ) (856 ) (8,356 ) (19,390 ) Interest expense and other, net (34,957 ) Corporate expenses (18,061 ) Share-based compensation expense (2,786 ) Amortization of acquired contract liabilities 10,987 Non-service defined benefit income 10,888 Impairment of long-lived assets (252,382 ) Income before income taxes (276,461 ) Total capital expenditures $ 7,723 $ 411 $ 6,283 $ 1,029 Total assets $ 2,266,320 $ 118,849 $ 1,436,980 $ 710,491 Three Months Ended June 30, 2019 Total Corporate & Eliminations Systems & Support Aerospace Structures Net sales to external customers $ 730,231 $ — $ 312,768 $ 417,463 Intersegment sales (eliminated in consolidation) — (2,553 ) 838 1,715 Segment profit and reconciliation to consolidated income before income taxes: Adjusted EBITDAP 82,608 — 44,080 38,528 Reconciliation of segment profit to income (loss) before income taxes Depreciation and amortization (44,050 ) (834 ) (8,157 ) (35,059 ) Interest expense and other, net (27,491 ) Corporate expenses (14,424 ) Share-based compensation expense (2,426 ) Loss on sale of assets and businesses (3,136 ) Amortization of acquired contract liabilities 16,939 Non-service defined benefit income 14,875 Income before income taxes 22,895 Total capital expenditures $ 8,090 $ 233 $ 3,884 $ 3,973

Background and Basis of Prese_2

Background and Basis of Presentation - Additional Information (Details)	3 Months Ended
	Jun. 30, 2020Segment
Accounting Changes And Error Corrections [Abstract]
Number of reportable segments	2

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Change In Accounting Estimate [Line Items]
Revenues	$ 495,077,000	$ 730,231,000
Income taxes paid, net of refunds received	$ 360,000	$ 1,280,000
Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage	10.00%
Revenue from Contract with Customer [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage	10.00%
Boeing [Member] | Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage	17.00%		21.00%
Boeing [Member] | Net sales [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage	38.00%	34.00%
Revenues	$ 188,137,000	$ 245,315,000
Boeing [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Systems & Support [Member]
Change In Accounting Estimate [Line Items]
Revenues	52,022,000	61,032,000
Boeing [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Aerospace Structures [Member]
Change In Accounting Estimate [Line Items]
Revenues	$ 136,114,000	$ 184,282,000
Bombardier [Member] | Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage	19.00%		16.00%
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member]
Change In Accounting Estimate [Line Items]
Concentration Risk, Percentage	11.00%	14.00%
Revenues	$ 53,710,000	$ 102,315,000
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Systems & Support [Member]
Change In Accounting Estimate [Line Items]
Revenues	843,000	855,000
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Aerospace Structures [Member]
Change In Accounting Estimate [Line Items]
Revenues	52,867,000	101,459,000
Revenue Benchmark [Member]
Change In Accounting Estimate [Line Items]
Change in Accounting Estimate	1,560,000	(1,149,000)
Operating Income (Loss) [Member]
Change In Accounting Estimate [Line Items]
Change in Accounting Estimate	3,326,000	(4,967,000)
Income (Loss), Net [Member]
Change In Accounting Estimate [Line Items]
Change in Accounting Estimate	3,326,000	(3,924,000)
Earnings (Loss) Per Share [Member]
Change In Accounting Estimate [Line Items]
Change in Accounting Estimate	$ 0.06	$ (0.08)
Minimum [Member]
Change In Accounting Estimate [Line Items]
Standard trade receivable, payment terms	30 days
Maximum [Member]
Change In Accounting Estimate [Line Items]
Standard trade receivable, payment terms	120 days

Divested Operations and Asset_2

Divested Operations and Assets Held For Sale - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]
Proceeds from divestiture of businesses		$ 58,000
Guarantor obligations, current carrying value		7,000
Gain (loss) on disposition of property plant equipment		(64,000)
Defined benefit plan, plan assets, amount		$ 55,000
Defined benefit plan, net periodic benefit cost (credit), gain (loss) due to settlement and curtailment	$ (28,000)
Gain (loss) on disposition of assets			$ 10,000	$ (3,136)

Revenue Recognition and Contr_3

Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales Satisfied Overtime and at a Point in Time (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 10,987	$ 16,939
Revenues	495,077	730,231
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	234,296	304,643
Amortization of acquired contract liabilities	3,719	8,125
Revenues excluding intercompany sales	238,015	312,768
Systems & Support [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	103,348	129,242
Systems & Support [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	130,948	175,401
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	249,794	408,649
Amortization of acquired contract liabilities	7,268	8,814
Revenues excluding intercompany sales	257,062	417,463
Aerospace Structures [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	243,639	372,237
Aerospace Structures [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 6,155	$ 36,412

Revenue Recognition and Contr_4

Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales by End Market (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 10,987	$ 16,939
Revenues	495,077	730,231
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	234,296	304,643
Amortization of acquired contract liabilities	3,719	8,125
Revenues excluding intercompany sales	238,015	312,768
Systems & Support [Member] | Commercial Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	92,180	175,319
Systems & Support [Member] | Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	120,384	95,357
Systems & Support [Member] | Business Jets [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	10,374	16,147
Systems & Support [Member] | Regional [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	5,875	10,373
Systems & Support [Member] | Non-aviation [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	5,483	7,447
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	249,794	408,649
Amortization of acquired contract liabilities	7,268	8,814
Revenues excluding intercompany sales	257,062	417,463
Aerospace Structures [Member] | Commercial Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	140,971	229,640
Aerospace Structures [Member] | Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	38,256	27,600
Aerospace Structures [Member] | Business Jets [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	65,952	121,149
Aerospace Structures [Member] | Regional [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	4,611	30,255
Aerospace Structures [Member] | Non-aviation [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 4	$ 5

Revenue Recognition and Contr_5

Revenue Recognition and Contracts with Customers - Summary of Contract Assets and Liabilities Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020
Revenue From Contract With Customer [Abstract]
Contract assets	$ 223,157	$ 267,079
Contract liabilities	(342,604)	(386,585)
Net contract liability	(119,447)	$ (119,506)
Change in contract assets	(43,922)
Change in contract liabilities	43,981
Change in net contract liability	$ 59

Revenue Recognition and Contr_6

Revenue Recognition and Contracts with Customers - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2019
Contract With Customer Asset And Liability [Line Items]
Contract with customer, contract assets classified as held for sale	$ 104,829
Contract with customer, contract liability classified as held for sale	20,517
Contract with Customer, Liability, Revenue Recognized	49,974
Contract with Customer, Asset, Net, Noncurrent	19,173		$ 22,662
Contract with Customer, Liability, Noncurrent	143,141		$ 91,265
Revenue Benchmark [Member]
Contract With Customer Asset And Liability [Line Items]
Revenue recognized due to changes in estimates associated with performance obligations	$ 1,560	$ (1,149)

Revenue Recognition and Contr_7

Revenue Recognition and Contracts with Customers - Schedule of Performance Obligations that are Expected to Be Recognized in Future (Details) $ in Thousands	Jun. 30, 2020USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 3,527,122
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	1,517,354
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	1,357,902
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	363,626
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 288,240
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	3 years
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	5 years
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	4 years
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	5 years

Revenue Recognition and Contr_8

Revenue Recognition and Contracts with Customers - Schedule of Performance Obligations that are Expected to Be Recognized in Future (Details 1) $ in Thousands	Jun. 30, 2020USD ($)
Revenue From Contract With Customer [Abstract]
Unsatisfied performance obligations	$ 3,527,122

Leases - Schedule of Components

Leases - Schedule of Components Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Lessee Lease Description [Line Items]
Total lease cost	$ 9,502	$ 9,863
Cost of sales or Selling, general and administrative expense [Member]
Lessee Lease Description [Line Items]
Operating lease cost	5,623	6,502
Variable lease cost	2,097	1,842
Depreciation and amortization [Member]
Lessee Lease Description [Line Items]
Amortization of right-of-use assets	1,376	1,349
Interest expense and other [Member]
Lessee Lease Description [Line Items]
Interest on lease liability	$ 406	$ 170

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used in operating leases	$ 4,539	$ 4,849
Operating cash flows used in finance leases	407	171
Financing cash flows used in finance leases	2,040	2,673
ROU assets obtained in exchange for lease liabilities
Operating leases	4,858	1,831
Finance leases	$ 352	$ 767

Leases - Schedule of Suppleme_2

Leases - Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
ASSETS
Operating lease ROU assets	$ 62,562	$ 61,461
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent	us-gaap:OtherAssetsNoncurrent
Finance lease ROU assets, cost	$ 41,565	$ 39,461
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent	us-gaap:PropertyPlantAndEquipmentNet
Accumulated amortization	$ (19,997)	$ (18,650)
Finance Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent	us-gaap:PropertyPlantAndEquipmentMember
Finance lease ROU assets, net	$ 21,568	$ 20,811
Total lease assets	84,130	82,272
Current liabilities:
Operating	$ 13,256	$ 13,139
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	tgi:LiabilitiesRelatedToAssetsHeldForSaleCurrent	us-gaap:AccruedLiabilitiesCurrent
Finance	$ 7,558	$ 7,336
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	tgi:LiabilitiesRelatedToAssetsHeldForSaleCurrent	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Noncurrent
Operating	$ 57,374	$ 54,687
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	tgi:LiabilitiesRelatedToAssetsHeldForSaleCurrent	us-gaap:OtherLiabilitiesNoncurrent
Finance	$ 16,589	$ 16,597
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	tgi:LiabilitiesRelatedToAssetsHeldForSaleCurrent	us-gaap:LongTermDebtAndCapitalLeaseObligations
Total lease liabilities	$ 94,777	$ 91,759

Leases - Schedule of Informatio

Leases - Schedule of Information Related to Lease Terms and Discount Rates (Details)	Jun. 30, 2020	Mar. 31, 2020
Leases [Abstract]
Operating leases	7 years 2 months 12 days	7 years 2 months 12 days
Finance leases	6 years 8 months 12 days	6 years 10 months 24 days
Operating leases	6.20%	6.20%
Finance leases	6.10%	5.90%

Leases - Schedule of Maturity o

Leases - Schedule of Maturity of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2020USD ($)
Leases [Abstract]
Operating leases, FY2021 (remaining of year)	$ 13,015
Operating leases, FY2022	15,632
Operating leases, FY2023	12,190
Operating leases, FY2024	9,364
Operating leases, FY2025	8,100
Operating leases, Thereafter	30,099
Total operating lease payments	88,400
Operating leases, Less: Imputed interest	(17,770)
Total operating lease liabilities	70,630
Finance leases, FY2021 (remaining of year)	6,759
Finance leases, FY2022	6,308
Finance leases, FY2023	3,354
Finance leases, FY2024	2,702
Finance leases, FY2025	1,356
Finance leases, Thereafter	9,905
Total finance lease payments	30,384
Finance leases, Less: Imputed interest	(6,237)
Total finance lease liabilities	24,147
Total lease payment, FY2021 (remaining of year)	19,774
Total lease payment, FY2022	21,940
Total lease payment, FY2023	15,544
Total lease payment, FY2024	12,066
Total lease payment, FY2025	9,456
Total lease payments, Thereafter	40,004
Total lease payments	118,784
Total lease payment, Less: Imputed interest	(24,007)
Total lease liabilities	$ 94,777

Inventories - Schedule of Compo

Inventories - Schedule of Components of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 58,724	$ 32,552
Work-in-process	295,874	312,953
Finished goods	56,331	50,011
Rotable assets	56,176	57,460
Total inventories	$ 467,105	$ 452,976

Long-term Debt - Schedule of Lo

Long-term Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Debt Instrument [Line Items]
Less: debt issuance costs	$ (15,320)	$ (16,426)
Long-term debt	1,564,621	1,807,507
Current portion of long-term debt	7,555	7,336
Long-term debt, less current portion	1,557,066	1,800,171
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt	175,000	400,000
Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Long-term debt	55,800	75,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term debt	24,141	23,933
Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	525,000	525,000
Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	300,000	300,000
Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500,000	$ 500,000

Long-term Debt - Additional Inf

Long-term Debt - Additional Information (Details)

May 22, 2020USD ($)

Oct. 23, 2019USD ($)

Sep. 23, 2019USD ($)

Aug. 17, 2017USD ($)

Jun. 03, 2014USD ($)

Jun. 30, 2020USD ($)

Jun. 30, 2019USD ($)

Mar. 31, 2021

May 03, 2021USD ($)

Mar. 31, 2020USD ($)

Dec. 31, 2019USD ($)

Mar. 31, 2019USD ($)

Debt Instrument [Line Items]

Payments of financing costs

$ 4,277,000

$ 104,000

Deferred finance costs, noncurrent, net

10,830,000

Interest paid, including capitalized interest, operating and investing activities

$ 13,464,000

$ 12,896,000

Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Limitation on cash holding, amount

$ 50,000,000

Percentage of reserve against proceeds of specified assets sales

75.00%

Debt instrument, increase in interest rate margins

0.50%

Minimum interest coverage ratio

1

1.85

Maximum permitted first lien leverage ratio

1

2.50

Line of credit facility, maximum borrowing capacity

$ 600,000,000

Long-term debt

175,000,000

$ 400,000,000

Letters of credit outstanding, amount

21,995,000

22,338,000

Borrowing capacity under revolving credit facility after reductions for borrowings and letters of credit outstanding

323,058,000

Payments of financing costs

$ 4,266,000

Revolving Credit Facility [Member] | Minimum [Member]

Debt Instrument [Line Items]

Line of credit facility, unused capacity, commitment fee percentage

0.30%

Revolving Credit Facility [Member] | Maximum [Member]

Debt Instrument [Line Items]

Line of credit facility, unused capacity, commitment fee percentage

0.50%

Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

2.50%

Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.00%

Revolving Credit Facility [Member] | Eurodollar [Member] | Minimum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

3.50%

Revolving Credit Facility [Member] | Eurodollar [Member] | Maximum [Member]

Debt Instrument [Line Items]

Debt instrument, basis spread on variable rate

4.00%

Revolving Credit Facility [Member] | Quarter Ending September 30, 2020 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

1.35

Revolving Credit Facility [Member] | Quarter Ending December 31, 2020 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

1

Revolving Credit Facility [Member] | Quarter Ending March 31, 2021 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

1.15

Maximum permitted first lien leverage ratio

1

2

Revolving Credit Facility [Member] | Quarter Ending June 30, 2021 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

1.75

Senior secured leverage ratio, maximum

1

4.50

Revolving Credit Facility [Member] | Quarter Ending September 30, 2021 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

2

Senior secured leverage ratio, maximum

1

3.75

Revolving Credit Facility [Member] | Quarter Ending December 31, 2021 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

2.25

Senior secured leverage ratio, maximum

1

3.50

Revolving Credit Facility [Member] | Quarter Ending March 31, 2022 [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

2.25

Senior secured leverage ratio, maximum

1

3.50

Revolving Credit Facility [Member] | Each Quarter Ending Thereafter [Member]

Debt Instrument [Line Items]

Minimum interest coverage ratio

1

2.75

Senior secured leverage ratio, maximum

1

3.25

Revolving Credit Facility [Member] | Forecast [Member]

Debt Instrument [Line Items]

Line of credit facility, maximum borrowing capacity

$ 407,000,000

Receivable Securitization Facility [Member]

Debt Instrument [Line Items]

Line of credit facility, maximum borrowing capacity

$ 75,000,000

$ 75,000,000

$ 125,000,000

Long-term debt

$ 55,800,000

75,000,000

Line of credit facility, amount outstanding commitment fee, percentage

0.13%

Line of credit facility, commitment fee percentage

0.50%

Line of credit, commitment fee on maximum amount available, percentage

100.00%

Senior Notes Due 2024 [Member]

Debt Instrument [Line Items]

Long-term debt

$ 525,000,000

525,000,000

Debt instrument, principal amount

$ 525,000,000

Proceeds from loan, percentage of principal (as a percent)

100.00%

Debt instrument, interest rate, effective percentage

6.25%

Debt instrument, interest rate, stated percentage

6.25%

Debt instrument, due date

Sep. 15, 2024

Debt instrument, interest payment terms

Interest on the 2024 Notes is payable semiannually in cash in arrears on March 15 and September 15 of each year. The 2024 Notes are secured by second-priority liens on all of the Company's and the subsidiary guarantors' assets that secure all of the indebtedness under the Credit Facility and certain hedging and cash management obligations.

Senior Notes Due 2021 [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate, stated percentage

4.875%

Debt instrument principal amount redeemed

$ 375,000,000

Senior Notes Due 2022 [Member]

Debt Instrument [Line Items]

Long-term debt

$ 300,000,000

300,000,000

Debt instrument, principal amount

$ 300,000,000

Proceeds from loan, percentage of principal (as a percent)

100.00%

Debt instrument, interest rate, effective percentage

5.25%

Debt instrument, interest rate, stated percentage

5.25%

Debt instrument, due date

Jun. 1, 2022

Debt instrument, interest payment terms

Interest on the 2022 Notes accrues at the rate of 5.250% per annum and is payable semiannually in cash in arrears on June 1 and December 1 of each year.

Senior Notes Due 2025 [Member]

Debt Instrument [Line Items]

Long-term debt

$ 500,000,000

$ 500,000,000

Debt instrument, principal amount

$ 500,000,000

Proceeds from loan, percentage of principal (as a percent)

100.00%

Debt instrument, interest rate, stated percentage

7.75%

Debt instrument, due date

Aug. 15, 2025

Debt instrument, interest payment terms

Interest on the 2025 Notes accrues at the rate of 7.750% per annum and is payable semiannually in cash in arrears on February 15 and August 15 of each year.

Long-term Debt - Schedule of Ca

Long-term Debt - Schedule of Carrying Amounts and Estimated Fair Values of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 1,564,621	$ 1,807,507
Reported Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt	1,564,621	1,807,507
Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,347,151	$ 1,559,455

Earnings per Share - Summary of

Earnings per Share - Summary of Reconciliation between Weighted-average Common Shares Outstanding used in Calculation of Basis and Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Weighted average common shares outstanding—basic	51,860	49,854
Net effect of dilutive stock options and non-vested stock		441
Weighted average common shares outstanding – diluted	51,860	50,295

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 18,971		$ 18,965
Effective income tax rate (as a percent)	(0.30%)	21.00%

Long-Lived Assets - Additional

Long-Lived Assets - Additional Information (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2020USD ($)
Property Plant And Equipment [Abstract]
Discount rate used to estimate fair value of asset group	15.00%
Noncash impairment charge	$ 252,382

Pension and Other Postretirem_3

Pension and Other Postretirement Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 377	$ 581
Interest cost	16,087	18,661
Expected return on plan assets	(33,002)	(35,739)
Amortization of prior service credits	243	(278)
Amortization of net loss	8,223	5,359
Net periodic benefit income	(8,072)	(11,416)
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		44
Interest cost	28	863
Amortization of prior service credits	(1,276)	(1,164)
Amortization of net loss	(1,191)	(2,442)
Net periodic benefit income	$ (2,439)	$ (2,699)

Stockholders' Deficit - Schedul

Stockholders' Deficit - Schedule of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	$ (781,264)	$ (573,313)
Total other comprehensive income (loss)	8,812	(1,593)
Balance	(1,047,381)	(557,919)
Accumulated Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance		(48,606)
Accumulated Other Comprehensive Income (Loss), before Tax	(62,045)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	919	(2,683)
Total other comprehensive income (loss)	919	(2,683)
Accumulated Other Comprehensive Income (Loss), before Tax	(61,126)	(51,289)
Accumulated Gain (Loss) Net Cash Flow Hedges [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(4,303)	(1,130)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	3,658	95
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(1,558)	(414)
Total other comprehensive income (loss)	2,100	(319)
Balance	(2,203)	(1,449)
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(653,080)	(437,948)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	5,793	1,409
Total other comprehensive income (loss)	5,793	1,409
Balance	(647,287)	(436,539)
Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(719,428)	(487,684)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	4,577	(2,588)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	4,235	995
Total other comprehensive income (loss)	8,812	(1,593)
Balance	$ (710,616)	$ (489,277)

Segments - Additional Informati

Segments - Additional Information (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2020USD ($)Segment	Jun. 30, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Revenues	$ 495,077	$ 730,231
Foreign Sales [Member]
Segment Reporting Information [Line Items]
Revenues	$ 92,197	$ 175,340

Segments - Schedule of Selected

Segments - Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Segment Reporting Information [Line Items]
Net sales to external customers		$ 495,077	$ 730,231
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP		38,452	82,608
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization		(28,602)	(44,050)
Interest expense and other, net		(34,957)	(27,491)
Corporate expenses		(18,061)	(14,424)
Share-based compensation expense		(2,786)	(2,426)
Gain (loss) on disposition of assets	$ 10,000		(3,136)
Amortization of acquired contract liabilities		10,987	16,939
Non-service defined benefit income		10,888	14,875
Impairment of long-lived assets		(252,382)
Income before income taxes		(276,461)	22,895
Total capital expenditures		7,723	8,090
Total assets		2,266,320		$ 2,980,333
Impairment of long-lived assets		(252,382)
Systems & Support [Member]
Segment Reporting Information [Line Items]
Intersegment sales (eliminated in consolidation)		1,872	838
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities		3,719	8,125
Aerospace Structures [Member]
Segment Reporting Information [Line Items]
Intersegment sales (eliminated in consolidation)		815	1,715
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities		7,268	8,814
Corporate & Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales to external customers		(2,687)	(2,553)
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization		(856)	(834)
Total capital expenditures		411	233
Total assets		118,849
Operating Segments [Member] | Systems & Support [Member]
Segment Reporting Information [Line Items]
Net sales to external customers		238,015	312,768
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP		30,068	44,080
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization		(8,356)	(8,157)
Total capital expenditures		6,283	3,884
Total assets		1,436,980
Operating Segments [Member] | Aerospace Structures [Member]
Segment Reporting Information [Line Items]
Net sales to external customers		257,062	417,463
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP		8,384	38,528
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization		(19,390)	(35,059)
Total capital expenditures		1,029	$ 3,973
Total assets		$ 710,491

Restructuring - Additional Info

Restructuring - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2021
Restructuring Cost And Reserve [Line Items]
Restructuring	$ 15,439	$ 2,964
Minimum [Member] | Forecast [Member]
Restructuring Cost And Reserve [Line Items]
Consulting and severance costs			$ 25,000
Maximum [Member] | Forecast [Member]
Restructuring Cost And Reserve [Line Items]
Consulting and severance costs			$ 27,000