Triumph (TGI) 10-Q 8 Nov 17 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	3 Months Ended	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Nov. 07, 2017
Entity Information [Line Items]
Entity Registrant Name		TRIUMPH GROUP INC
Entity Central Index Key		1,021,162
Current Fiscal Year End Date		--03-31
Entity Filer Category		Large Accelerated Filer
Document Type		10-Q
Document Period End Date		Sep. 30, 2017
Document Fiscal Year Focus		2,018
Document Fiscal Period Focus		Q2
Amendment Flag		false
Entity Common Stock, Shares Outstanding			49,647,572
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Current assets:
Cash and cash equivalents	$ 33,669	$ 69,633
Trade and other receivables, less allowance for doubtful accounts of $3,631 and $4,559	330,134	311,792
Inventories, net of unliquidated progress payments of $429,185 and $222,485	1,368,715	1,340,175
Prepaid and other current assets	28,850	30,064
Assets Held-for-sale, Not Part of Disposal Group, Current	0	21,255
Total current assets	1,761,368	1,772,919
Property and equipment, net	768,884	805,030
Goodwill	1,124,864	1,142,605
Intangible assets, net	533,630	592,364
Other, net	93,200	101,682
Total assets	4,281,946	4,414,600
Current liabilities:
Current portion of long-term debt	22,883	160,630
Accounts payable	388,221	481,243
Accrued expenses	528,788	674,379
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	18,008
Total current liabilities	939,892	1,334,260
Long-term debt, less current portion	1,409,130	1,035,670
Accrued pension and other postretirement benefits, noncurrent	549,211	592,134
Deferred income taxes, noncurrent	70,325	68,107
Other noncurrent liabilities	457,543	537,956
Stockholders’ equity:
Common stock, $.001 par value, 100,000,000 shares authorized, 52,460,920 and 52,460,920 shares issued; 49,632,547 and 49,573,029 shares outstanding	51	51
Capital in excess of par value	848,078	846,807
Treasury Stock, Value	(181,072)	(183,696)
Accumulated other comprehensive loss	(379,422)	(396,178)
Retained earnings	568,210	579,489
Total stockholders' equity	855,845	846,473
Total liabilities and stockholders' equity	$ 4,281,946	$ 4,414,600

Consolidated Balance Sheet Pare

Consolidated Balance Sheet Parenthetical (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Allowance for doubtful accounts	$ 3,631	$ 4,559
Unliquidated progress payments	$ 429,185	$ 222,485
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	49,632,547	49,573,029
Treasury Stock, Shares	2,828,373	2,887,891

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net sales	$ 745,156	$ 874,769	$ 1,526,845	$ 1,768,022
Operating costs and expenses:
Cost of sales (exclusive of depreciation and amortization shown separately below)	579,864	673,432	1,207,210	1,399,820
Selling, General and Administrative Expense	74,581	70,329	153,883	138,355
Depreciation and amortization	40,868	45,286	79,999	90,748
Restructuring Charges	10,101	10,462	27,602	17,113
Gain (Loss) on Disposition of Business	20,371	(4,774)	20,371	(4,774)
Operating Expenses	726,308	804,283	1,489,588	1,650,810
Operating Income (Loss)	18,848	70,486	37,257	117,212
Interest expense and other	25,375	17,896	46,393	36,023
Income from continuing operations before income taxes	(6,527)	52,590	(9,136)	81,189
Income Tax Expense	(1,149)	17,783	(1,827)	26,648
Net Income (Loss) Attributable to Parent	$ (5,378)	$ 34,807	$ (7,309)	$ 54,541
Earnings per share-basic:
Earnings per share—basic:	$ (0.11)	$ 0.71	$ (0.15)	$ 1.11
Weighted-average common shares outstanding-basic (in shares)	49,428	49,304	49,400	49,281
Earnings per share-diluted:
Earnings per share—diluted:	$ (0.11)	$ 0.70	$ (0.15)	$ 1.10
Weighted-average common shares outstanding-diluted (in shares)	49,428	49,432	49,400	49,429
Dividends declared and paid per common share (in dollars per share)	$ 0.04	$ 0.04	$ 0.08	$ 0.08

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Prior service loss	$ (523)	$ 0	$ (523)	$ 0
Net Income (Loss) Attributable to Parent	(5,378)	34,807	(7,309)	54,541
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustment	9,905	(6,821)	21,326	(21,618)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	1,695	834	3,390	1,671
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Net of Tax	(3,042)	(2,408)	(6,084)	(4,817)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent	(824)	(1,574)	(2,171)	(3,146)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(561)	928	(19)	373
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(2,021)	1	(2,380)	(10)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(2,582)	929	(2,399)	363
Other Comprehensive Income (Loss), Net of Tax	6,499	(7,466)	16,756	(24,401)
Total comprehensive income	$ 1,121	$ 27,341	$ 9,447	$ 30,140

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income Parenthetical (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit), Tax	$ 0	$ 0	$ 0	$ 0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During the Period, Tax	0	0	0	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Tax	0	(489)	0	(977)
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Tax	0	1,408	0	2,819
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During the Period, Tax	(2)	(578)	(9)	(238)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	$ 11	$ 1	$ 21	$ 1

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating Activities
Net Income (Loss) Attributable to Parent	$ (7,309)	$ 54,541
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	79,999	90,748
Amortization of acquired contract liabilities	(57,371)	(59,825)
Gain (Loss) on Disposition of Business	20,371	(4,774)
Other amortization included in interest expense	7,819	2,576
Provision for doubtful accounts receivable	(568)	(224)
Provision for deferred income taxes	(422)	15,897
Employee stock-based compensation	3,418	3,976
Changes in assets and liabilities, excluding the effects of acquisitions and dispositions of businesses:
Trade and other receivables	(19,678)	108,812
Inventories	(29,269)	(240,361)
Prepaid expenses and other current assets	2,925	17,001
Accounts payable, accrued expenses and other current liabilities	(246,118)	(85,769)
Accrued pension and other postretirement benefits	(46,049)	(48,941)
Other	(6,813)	5,559
Net cash (used in) provided by operating activities	(299,065)	(131,236)
Investing Activities
Capital expenditures	(22,775)	(23,967)
Proceeds from sale of assets	67,882	10,044
Acquisitions, net of cash acquired	0	9
Net cash used in investing activities	45,107	(13,914)
Financing Activities
Net increase in revolving credit facility	87,393	252,396
Proceeds from issuance of long-term debt and capital leases	510,800	12,700
Repayment of debt and capital lease obligations	(357,046)	(73,834)
Payment of deferred financing costs	(17,120)	(11,079)
Dividends paid	(3,970)	(3,962)
Repayments of government grant	0	(14,570)
Repurchase of restricted shares for minimum tax obligation	(334)	(182)
Net cash (used in) provided by financing activities	219,723	161,469
Effect of exchange rate changes on cash	(1,729)	(1,088)
Net change in cash and cash equivalents	(35,964)	15,231
Cash at beginning of period	69,633	20,984
Cash at end of period	$ 33,669	$ 36,215

Consolidated Statements of Cas8

Consolidated Statements of Cash Flows Parenthetical (Parentheticals) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Excess tax benefit	$ 0	$ 0

BASIS OF PRESENTATION AND ORGAN

BASIS OF PRESENTATION AND ORGANIZATION	6 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	BASIS OF PRESENTATION AND ORGANIZATION The accompanying unaudited condensed consolidated financial statements of Triumph Group, Inc. (the "Company") 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 and six months ended September 30, 2017 are not necessarily indicative of results that may be expected for the year ending March 31, 2018 . The accompanying condensed consolidated financial statements are unaudited and should be read in conjunction with the fiscal 2017 audited condensed consolidated financial statements and notes thereto included in the Company's Form 10-K for the year ended March 31, 2017 filed with the Securities and Exchange Commission (the "SEC") on May 24, 2017. The Company designs, engineers, manufactures, repairs and overhauls a broad portfolio of aerostructures, aircraft components, accessories, subassemblies and systems. The Company serves a broad, worldwide spectrum of the aviation industry, including original equipment manufacturers of commercial, regional, business and military aircraft and aircraft components, as well as commercial and regional airlines and air cargo carriers. Standards Recently Implemented In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"). ASU 2016-09 identifies areas for simplification involving several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows. The Company adopted ASU 2016-09 effective April 1, 2017. The adoption of ASU 2016-09 did not have a material impact on the Company's consolidated financial statements. Standards Issued Not Yet Implemented In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”, “ASC 606”), which requires recognition of revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB has issued several updates to ASU 2014-09 which must be adopted concurrently with ASU 2014-09. Under ASC 606, revenue is recognized when control of promised goods or services transfers to a customer and is recognized in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. The major provisions include determining enforceable rights and obligation between parties, defining performance obligations as the units of accounting under contract, accounting for variable consideration, and determining whether performance obligations are satisfied over time or at a point of time. Additionally, ASC 606 requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. ASC 606 will be effective for the Company beginning April 1, 2018. The guidance permits two methods of adoption: retrospectively to each prior reporting period presented (the “full retrospective method”), or retrospectively with the cumulative effect of initially applying ASC 606 recognized at the date of initial application (the "modified retrospective method”). The Company is adopting ASC 606 effective April 1, 2018 and the Company expects to do so using the modified retrospective method. During the fiscal year ended March 31, 2016, we established a cross-functional team to assess and prepare for implementation of the new standard. We are analyzing the impact of the new standard on the Company’s revenue contracts, comparing our current accounting policies and practices to the requirements of the new standard, and identifying potential differences that would result from applying the new standard to our contracts. While further analysis of ASC 606 and a review of all material contracts is underway, the adoption of ASC 606 may impact the amount and timing of revenue recognition and the accounting treatment of deferred production costs for certain of our contracts. Under ASC 606, the units-of-delivery method is no longer viable and some performance obligations may be satisfied over time which may change the timing of recognition of revenue and associated production costs for certain contracts. In March 2017, the FASB issued ASU No. 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (“ASU 2017-07”). ASU 2017-07 amends ASC 715, Compensation — Retirement Benefits , to require employers that present a measure of operating income in their statement of income to include only the service cost component of net periodic pension cost and net periodic postretirement benefit cost in operating expenses (together with other employee compensation costs). The other components of net benefit cost, including amortization of prior service cost/credit, and settlement and curtailment effects, are to be included in nonoperating expenses. Employers that do not present a measure of operating income are required to include the service cost component in the same line item as other employee compensation costs. Employers are required to include all other components of net benefit cost in a separate line item(s). The line item(s) in which the components of net benefit cost other than the service cost are included need to be identified as such on the income statement or in the disclosures. ASU 2017-07 also stipulates that only the service cost component of net benefit cost is eligible for capitalization. ASU 2017-07 is effective for reporting periods beginning after December 15, 2017, with early adoption permitted. The Company is currently performing its assessment of the impact of adopting the guidance; however based on its expectations for the fiscal year ending March 31, 2018, the Company believes it will likely have a material impact due to the reclassification of pension and OPEB income from capitalized costs (Operating Income) to Other Income. Excluding the service costs, the net periodic pension benefit for the fiscal year ending March 31, 2018 is expected to be $67,000 . In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) ("ASU 2016-02"). This update requires recognition of lease assets and lease liabilities on the balance sheet of lessees. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 and interim reporting periods within those years. Early adoption is permitted. ASU 2016-02 requires a modified retrospective transition approach and provides certain optional transition relief. The Company is currently evaluating the guidance to determine the impact it may have to the Company's consolidated financial statements.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	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 financial statements and accompanying notes. Actual results could differ from those estimates. Revenue Recognition Revenues are generally recognized in accordance with the contract terms when products are shipped, delivery has occurred or services have been rendered, pricing is fixed and determinable, and collection is reasonably assured. A significant portion of the Company’s contracts are within the scope of the Revenue Recognition - Construction-Type and Production-Type Contracts topic of the Accounting Standards Codification ("ASC") 605-35 and revenue and costs on contracts are recognized using the percentage-of-completion method of accounting. Accounting for the revenue and profit on a contract requires estimates of (1) the contract value or total contract revenue, (2) the total costs at completion, which is equal to the sum of the actual incurred costs to date on the contract and the estimated costs to complete the contract’s scope of work, and (3) the measurement of progress toward completion. Depending on the contract, the Company measures progress toward completion using either the cost-to-cost method or the units-of-delivery method of accounting, with the great majority measured under the units-of-delivery method of accounting. • Under the cost-to-cost method of accounting, progress toward completion is measured as the ratio of total costs incurred to estimated total costs at completion. Costs are recognized as incurred. Profit is determined based on estimated profit margin on the contract multiplied by the progress toward completion. Revenue represents the sum of costs and profit on the contract for the period. • Under the units-of-delivery method of accounting, revenue on a contract is recorded as the units are delivered and accepted during the period at an amount equal to the contractual selling price of those units. The costs recorded on a contract under the units-of-delivery method of accounting are equal to the total costs at completion divided by the total units to be delivered. As contracts can span multiple years, the Company often segments the contracts into production lots for the purposes of accumulating and allocating cost. Profit is recognized as the difference between revenue for the units delivered and the estimated costs for the units delivered. Adjustments to original estimates for a contract’s revenues, estimated costs at completion and estimated total profit are often required as work progresses under a contract, as experience is gained and as more information is obtained, even though the scope of work required under the contract may not change, or if contract modifications occur. These estimates are also sensitive to the assumed rate of production. Generally, the longer it takes to complete the contract quantity, the more relative overhead that contract will absorb. The impact of revisions in cost estimates is recognized on a cumulative catch-up basis in the period in which the revisions are made. Provisions for anticipated losses on contracts are recorded in the period in which they become evident (‘‘forward losses’’) and are first offset against costs that are included in inventory, with any remaining amount reflected in accrued contract liabilities in accordance with the Revenue Recognition - Construction-Type and Production-Type Contracts topic. Revisions in contract estimates, if significant, can materially affect results of operations and cash flows, as well as valuation of inventory. Furthermore, certain contracts are combined or segmented for revenue recognition in accordance with the Revenue Recognition - Construction-Type and Production-Type Contracts topic. During the quarter ended September 30, 2016, the Company discovered an immaterial error in its percentage-of-completion accounting for one of its contracts, which understated cost of sales and overstated net income for the three months ended June 30, 2016, in the amount of $11,800 and $8,142 , respectively, and overstated retained earnings as of March 31, 2016 in the amount of $12,700 . The Company assessed the materiality of this error on previously issued financial statements in accordance with the ASC 250, Presentation of Financial Statements , and Securities and Exchange Commission (SEC) Staff Accounting Bulletin No. 99, Materialit y. The Company concluded, based on a review of the quantitative and qualitative factors of the materiality of the amount, that the error was not material to any previously issued financial statements and that the correction of the error in the three months ended September 30, 2016 was not material to that period’s financial statements. Accordingly, in order to correct this immaterial error, the Company recorded a charge to "Cost of sales" in the amount of $24,500 , which is presented on the accompanying Condensed Consolidated Statements of Income during the three months ended September 30, 2016. For the three months ended September 30, 2017 , cumulative catch-up adjustments from changes in estimates, inclusive of changes in forward loss estimates, increased operating income, net income and earnings per share by approximately $8,416 , $6,733 and $0.14 , net of tax, respectively. For the three months ended September 30, 2016 cumulative catch-up adjustments were balanced between positive and negative variances. For the six months ended September 30, 2017 , cumulative catch-up adjustments from changes in estimates, inclusive of changes in forward loss estimates, increased operating income, net income and earnings per share by approximately $7,916 , $6,333 and $0.13 , net of tax, respectively. For the six months ended September 30, 2016 , cumulative catch-up adjustments from changes in estimates decreased operating income, net income and earnings per share by approximately $(20,716) , $(13,917) and $(0.28) , net of tax, respectively. Amounts representing contract change orders or claims are only included in revenue when such change orders or claims have been settled with the customer and to the extent that units have been delivered. Additionally, some contracts may contain provisions for revenue sharing, price re-determination, requests for equitable adjustments, change orders or cost and/or performance incentives. Such amounts or incentives are included in contract value when the amounts can be reliably estimated and their realization is reasonably assured. Although fixed-price contracts, which extend several years into the future, generally permit the Company to keep unexpected profits if costs are less than projected, the Company also bears the risk that increased or unexpected costs may reduce profit or cause the Company to sustain losses on the contract. In a fixed-price contract, the Company must fully absorb cost overruns, notwithstanding the difficulty of estimating all of the costs the Company will incur in performing these contracts and in projecting the ultimate level of revenue that may otherwise be achieved. As previously disclosed, the Company recognized provisions for forward losses associated with our long-term contracts on the 747-8 and Bombardier programs. There is still risk similar to what the Company has experienced on the 747-8 and Bombardier programs. Particularly, the Company's ability to manage risks related to supplier performance, execution of cost reduction strategies, hiring and retaining skilled production and management personnel, quality and manufacturing execution, program schedule delays, potential need to negotiate facility lease extensions or alternatively relocate work and many other risks, will determine the ultimate performance of these programs. Included in net sales of Integrated Systems, Aerospace Structures and Precision Components, is the non-cash amortization of acquired contract liabilities that were recognized as fair value adjustments through purchase accounting from various acquisitions. For the three months ended September 30, 2017 and 2016 , the Company recognized $27,898 and $30,477 , respectively, into net sales on the accompanying Condensed Consolidated Statements of Income. For the six months ended September 30, 2017 and 2016 , the Company recognized $57,371 and $59,825 , respectively, into net sales on the accompanying Condensed Consolidated Statements of Income. Product Support provides repair and overhaul services, of which a small portion of services are provided under long-term power-by-the-hour contracts. The Company applies the proportional performance method of accounting to recognize revenue under these contracts. Revenue is recognized over the contract period as units are delivered based on the relative value in proportion to the total estimated contract consideration. In estimating the total contract consideration, management evaluates the projected utilization of its customers’ fleet over the term of the contract, in connection with the related estimated repair and overhaul servicing requirements to the fleet based on such utilization. Changes in utilization of the fleet by customers, among other factors, may have an impact on these estimates and require adjustments to estimates of revenue to be realized. Concentration of Credit Risk The Company’s trade 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 Boeing (representing commercial, military and space) represented approximately 15% and 5% of total trade accounts receivable as of September 30, 2017 and March 31, 2017 , respectively. Trade accounts receivable from Gulfstream (representing commercial, military and space) represented approximately 12% and 3% of total trade accounts receivable as of September 30, 2017 and March 31, 2017 , respectively. The Company had no other concentrations of credit risk of more than 10% . Sales to Boeing for the six months ended September 30, 2017 , were $507,330 , or 33% of net sales, of which $105,304 , $201,865 , $195,952 and $4,209 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, respectively. Sales to Boeing for the six months ended September 30, 2016 , were $657,901 , or 37% of net sales, of which $106,838 , $311,658 , $223,256 and $16,149 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, respectively. Sales to Gulfstream for the six months ended September 30, 2017 , were $198,525 , or 13% of net sales, of which $654 , $191,799 , $5,875 and $197 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, respectively. Sales to Gulfstream for the six months ended September 30, 2016 , were $216,651 , or 12% of net sales, of which $1,083 , $209,684 , $5,782 and $102 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, 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. Stock-Based Compensation The Company recognizes compensation expense for share-based awards based on the fair value of those awards at the date of grant. Stock-based compensation expense for the three months ended September 30, 2017 and 2016 , was $3,459 and $2,024 , respectively. Stock-based compensation expense for the six months ended September 30, 2017 and 2016 , was $3,418 and $3,976 , respectively. The Company has classified share-based compensation within selling, general and administrative expenses to correspond with the same line item as the majority of the cash compensation paid to employees. Upon the exercise of stock options or vesting of restricted stock, the Company first transfers treasury stock, then issues new shares. Intangible Assets The components of intangible assets, net, are as follows: September 30, 2017 Weighted- Average Life Gross Carrying Amount Accumulated Amortization Net Customer relationships 17.1 $ 620,783 $ (237,521 ) $ 383,262 Product rights, technology and licenses 11.4 54,960 (40,661 ) 14,299 Non-compete agreements and other 16.3 2,756 (876 ) 1,880 Tradenames 10.0 150,000 (15,811 ) 134,189 Total intangibles, net $ 828,499 $ (294,869 ) $ 533,630 March 31, 2017 Weighted- Average Life Gross Carrying Amount Accumulated Amortization Net Customer relationships 16.6 $ 663,165 $ (241,124 ) $ 422,041 Product rights, technology and licenses 11.4 54,347 (39,486 ) 14,861 Non-compete agreements and other 16.3 2,756 (786 ) 1,970 Tradenames 10.3 163,000 (9,508 ) 153,492 Total intangibles, net $ 883,268 $ (290,904 ) $ 592,364 Amortization expense for the three months ended September 30, 2017 and 2016 , was $14,550 and $13,586 , respectively. Amortization expense for the six months ended September 30, 2017 and 2016 , was $29,375 and $27,217 , respectively. 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 to its divestitures and interest rate swap (see Note 3 and Note 5). Warranty Reserves A reserve has been established to provide for the estimated future cost of warranties on our delivered products. The Company periodically reviews the reserves and adjustments are made accordingly. A provision for warranty on products delivered is made on the basis of historical experience and identified warranty issues. Warranties cover such factors as non-conformance to specifications and defects in material and workmanship. The majority of the Company's agreements include a three -year warranty, although certain programs have warranties up to 20 years. The warranty reserves as of September 30, 2017 and March 31, 2017 , were $81,552 and $107,088 , respectively. The decrease in warranty reserves during the first half of the fiscal year ended March 31, 2018, was offset by a corresponding decrease to the related indemnification asset, which is included in other assets on the accompanying Condensed Consolidated Balance Sheets. Supplemental Cash Flow Information The Company paid $5,133 and $2,169 for income taxes, net of refunds, for the six months ended September 30, 2017 and 2016 , respectively. The Company made interest payments of $31,507 and $34,514 for the six months ended September 30, 2017 and 2016 , respectively. During the six months ended September 30, 2017 and 2016 , the Company financed $1,153 and $11,427 , respectively, of property and equipment additions through capital leases. As of September 30, 2017 , the Company remains able to purchase an additional 2,277,789 shares under the existing stock repurchase program. However, there are certain restrictions placed on the repurchase program by the Company's lenders that prevent any repurchases at this time.

INVENTORIES

INVENTORIES	6 Months Ended
	Sep. 30, 2017
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories are stated at the lower of cost (average-cost or specific-identification methods) or market. The components of inventories are as follows: September 30, 2017 March 31, 2017 Raw materials $ 83,511 $ 89,069 Work-in-process, including manufactured and purchased components 1,547,690 1,297,989 Finished goods 109,931 118,265 Rotable assets 56,768 57,337 Less: unliquidated progress payments (429,185 ) (222,485 ) Total inventories $ 1,368,715 $ 1,340,175 Work-in-process inventory includes capitalized pre-production costs on newer development programs. Capitalized pre-production costs include nonrecurring engineering, planning and design, including applicable overhead, incurred before production is manufactured on a regular basis. Significant customer-directed work changes can also cause pre-production costs to be incurred. These costs are typically recovered over a contractually determined number of ship set deliveries. The balance of development program inventory, comprised principally of capitalized pre-production costs, excluding progress payments related to the Company's contracts with Bombardier for the Global 7000/8000 program ("Bombardier") and Embraer for the second generation E-Jet program ("Embraer") are as follows: September 30, 2017 Inventory Capitalized Pre-Production Forward Loss Provision Total Inventory, net Bombardier $ 195,157 $ 648,804 $ (374,800 ) $ 469,161 Embraer 29,550 178,262 (4,587 ) 203,225 Total $ 224,707 $ 827,066 $ (379,387 ) $ 672,386 March 31, 2017 Inventory Capitalized Pre-Production Forward Loss Provision Total Inventory, net Bombardier $ 89,650 $ 589,449 $ (399,758 ) $ 279,341 Embraer 14,987 173,169 (5,800 ) 182,356 Total $ 104,637 $ 762,618 $ (405,558 ) $ 461,697 Under our contract for the Bombardier Global 7000/8000 wing program ("Global 7000"), the Company has the right to design, develop and manufacture wing components for the Global 7000 program. The Global 7000 contract provides for fixed pricing and requires the Company to fund certain up-front development expenses, with certain milestone payments made by Bombardier. The Global 7000 program charge resulted in the impairment of previously capitalized pre-production costs due to the combination of cost recovery uncertainty, higher than anticipated non-recurring costs and increased forecasted costs on recurring production. The increases in costs were driven by several factors, including: changing technical requirements, increased spending on the design and engineering phase of the program, and uncertainty regarding cost reduction and cost recovery initiatives with our customer and suppliers. The Global 7000 program has continued to incur costs since March 2016 in support of the development and transition to production. In May 2017, Triumph Aerostructures and Bombardier entered into a comprehensive settlement agreement that resolved all outstanding commercial disputes between them, including all pending litigation, related to the design, manufacture and supply of wing components for the Global 7000 business aircraft. The settlement resets the commercial relationship between the companies and allows each company to better achieve its business objectives going forward. Further cost increases or an inability to meet revised recurring cost forecasts on the Global 7000 program may result in additional forward loss reserves in future periods, while improvements in future costs compared to current estimates may result in favorable adjustments if forward loss reserves are no longer required. The Company is still in the pre-production stages for the Bombardier and Embraer programs, as these aircrafts are not scheduled to enter service until 2018, or later. Transition of these programs from development to recurring production levels is dependent upon the success of the programs achieving flight testing and certification, as well as the ability of the Bombardier and Embraer programs to generate acceptable levels of aircraft sales. The failure to achieve these milestones and level of sales or significant cost overruns may result in additional forward losses.

LONG-TERM DEBT

LONG-TERM DEBT	6 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT Long-term debt consists of the following: September 30, 2017 March 31, 2017 Revolving line of credit $ 117,393 $ 29,999 Term loan — 309,375 Receivable securitization facility 88,800 112,900 Capital leases 61,480 72,800 Senior notes due 2021 375,000 375,000 Senior notes due 2022 300,000 300,000 Senior notes due 2025 500,000 — Other debt 7,978 7,978 Less: Debt issuance costs (18,638 ) (11,752 ) 1,432,013 1,196,300 Less: Current portion 22,883 160,630 $ 1,409,130 $ 1,035,670 Revolving Credit Facility In July 2017, the Company entered into a Ninth Amendment to the Credit Agreement (the “Ninth Amendment” and the Existing Credit Agreement as amended by the Ninth Amendment, the “Credit Agreement”) with the Administrative Agent and the Lenders party thereto to, among other things, (i) permit the Company to incur High Yield Indebtedness (as defined in the Credit Agreement) in an aggregate principal amount of up to $500,000 , subject to the Company’s obligations to apply the net proceeds from this offering to repay the outstanding principal amount of the term loans in full, (ii) limit the mandatory prepayment provisions to eliminate the requirement that net proceeds received from the incurrence of Permitted Indebtedness (as defined in the Credit Agreement), including the High Yield Indebtedness, be applied to reduce the revolving credit commitments once the revolving credit commitments have been reduced to $800,000 , (iii) amend certain covenants and other terms and (iv) modify the current interest rate and letter of credit pricing tiers. In connection with the amendment to the Credit Agreement, the Company incurred $633 of financing costs. These costs, along with the $13,226 of unamortized financing costs subsequent to the amendment, are being amortized over the remaining term of the Credit Agreement. In accordance with the reduction in the capacity of the Credit Agreement, the Company wrote-off a proportional amount of unamortized financing fees prior to the amendment. In May 2017, the Company entered into an Eighth Amendment to the Third Amended and Restated Credit Agreement, among the Company and its lenders to, among other things, (i) eliminate the total leverage ratio financial covenant, (ii) increase the maximum permitted senior secured leverage ratio financial covenant applicable to each fiscal quarter, commencing with the fiscal quarter ended March 31, 2017, and to revise the step-downs applicable to such financial covenant, (iii) reduce the aggregate principal amount of commitments under the revolving line of credit to $850,000 from $1,000,000 , (iv) modify the maturity date of the term loans so that all of the term loans will mature on March 31, 2019, and (v) establish a new higher pricing tier for the interest rate, commitment fee and letter of credit fee pricing provisions. The obligations under the Credit Facility and related documents are secured by liens on substantially all assets of the Company and its domestic subsidiaries pursuant to a Second Amended and Restated Guarantee and Collateral Agreement, dated as of November 19, 2013, among the administrative agent, the Company and the subsidiaries of the Company party thereto. Pursuant to the Credit Facility, 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 $800,000 outstanding at any time. The Credit Facility bears interest at either: (i) LIBOR plus between 1.50% and 3.50% ; (ii) the prime rate; or (iii) an overnight rate at the option of the Company. The applicable interest rate is based upon the Company’s ratio of total indebtedness to earnings before interest, taxes, depreciation and amortization. In addition, the Company is required to pay a commitment fee of 0.50% on the unused portion of the Credit Facility. The Company’s obligations under the Credit Facility are guaranteed by the Company’s domestic subsidiaries. At September 30, 2017 , there were $117,393 in borrowings and $30,302 in letters of credit outstanding under the Revolving Line of Credit provisions of the Credit Facility, primarily to support insurance policies. At March 31, 2017 , there were $29,999 in borrowings and $27,240 in letters of credit outstanding under the Revolving Line of Credit provisions of the Credit Facility, primarily to support insurance policies. The level of unused borrowing capacity under the Revolving Line of Credit provisions of the Credit Facility varies from time to time depending in part upon its compliance with financial and other covenants set forth in the related agreement. The Credit Facility 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 Credit Facility, 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. Although the Company does not anticipate any violations of the financial covenants, its ability to comply with these covenants is dependent upon achieving earnings and cash flow projections. As of September 30, 2017 , the Company had borrowing capacity under this facility of $652,305 after reductions for borrowings, letters of credit outstanding under the facility and consideration of covenant limitations. The Credit Facility also provided for a variable rate term loan (the "2013 Term Loan"). The Company repaid the outstanding principal amount of the 2013 Term Loan in quarterly installments, on the first business day of each January, April, July and October. The 2013 Term Loan was paid in full with the proceeds from the Senior Notes due 2025 (see below). The Company previously maintained an interest rate swap agreement to reduce its exposure to interest on the variable rate portion of its long-term debt. In conjunction with the repayment of the 2013 Term Loan, the Company terminated the interest rate swap receiving $280 upon settlement which is included in Interest expense and other on the accompanying Condensed Consolidated Statements of Operations. Receivables Securitization Facility In November 2014, the Company amended its Securitization Facility, increasing the purchase limit from $175,000 to $225,000 and extending the term through November 2017. In connection with the Securitization Facility, the Company sells on a revolving basis certain trade 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 September 30, 2017 , the maximum amount available under the Securitization Facility was $225,000 . Interest rates are based on LIBOR plus a program fee and a commitment fee. The program fee is 0.40% on the amount outstanding under the Securitization Facility. Additionally, the commitment fee is 0.40% 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 the Transfers and Servicing topic of the ASC 860. In November 2017, the Company amended the Securitization Facility decreasing the purchase limit from $225,000 to $125,000 and extending the term through November 2020. . 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 of the Company's assets. Senior Notes Due 2021 On February 26, 2013, the Company issued $375,000 principal amount of 4.875% Senior Notes due 2021 (the "2021 Notes"). The 2021 Notes were sold at 100% of principal amount and have an effective interest yield of 4.875% . Interest on the 2021 Notes accrues at the rate of 4.875% per annum and is payable semiannually in cash in arrears on April 1 and October 1 of each year, commencing on October 1, 2013. Senior Notes Due 2022 On June 3, 2014, the Company issued $300,000 principal amount of 5.250% Senior Notes due 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, commencing on December 1, 2014. Senior Notes Due 2025 On August 17, 2017, the Company issued $500,000 principal amount of 7.750% Senior Notes due 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, commencing on February 15 , 2018. In connection with the issuance of the 2025 Notes, the Company incurred approximately $8,779 of costs, which were deferred and are being amortized on the effective interest method over the term of the 2025 Notes. The 2025 Notes are the Company's senior unsecured obligations and rank equally in right of payment with all of its other existing and future senior unsecured indebtedness and senior in right of payment to all of its existing and future subordinated indebtedness. The 2025 Notes are guaranteed on a full, joint and several basis by each of the Guarantor Subsidiaries. The Company may redeem some or all of the 2025 Notes prior to August 15, 2020 by paying a "make-whole" premium. The Company may redeem some or all of the 2025 Notes on or after August 15, 2020, at specified redemption prices. In addition, prior to August 15, 2020, the Company may redeem up to 35% of the 2025 Notes with the net proceeds of certain equity offerings at a redemption price equal to 107.750% of the aggregate principal amount plus accrued and unpaid interest, if any, subject to certain limitations set forth in the indenture governing the 2025 Notes (the "2025 Indenture"). The Company is obligated to offer to repurchase the 2025 Notes at a price of (i) 101% of their principal amount plus accrued and unpaid interest, if any, as a result of certain change-of-control events and (ii) 100% of their principal amount plus accrued and unpaid interest, if any, in the event of certain asset sales. These restrictions and prohibitions are subject to certain qualifications and exceptions. The 2025 Indenture contains covenants that, among other things, limit the Company's ability and the ability of any of the guarantor subsidiaries to (i) grant liens on its assets, (ii) make dividend payments, other distributions or other restricted payments, (iii) incur restrictions on the ability of the Guarantor Subsidiaries to pay dividends or make other payments, (iv) enter into sale and leaseback transactions, (v) merge, consolidate, transfer or dispose of substantially all of their assets, (vi) incur additional indebtedness, (vii) use the proceeds from sales of assets, including capital stock of restricted subsidiaries, and (viii) enter into transactions with affiliates. Receivables Purchase Agreement On March 28, 2016, the Company entered into a Purchase Agreement ("Receivables Purchase Agreement") to sell certain accounts receivables to a financial institution without recourse. The Company is the servicer of the accounts receivable under the Receivables Purchase Agreement. As of September 30, 2017 , the maximum amount available under the Receivables Purchase Agreement was $90,000 . Interest rates are based on LIBOR plus 0.65% - 0.70% . As of September 30, 2017 and March 31, 2017 , the Company sold $0 and $78,006 , respectively, worth of eligible accounts receivable. Financial Instruments Not Recorded at Fair Value The carrying amounts of certain of our financial instruments, including cash and cash equivalents, accounts receivable and accounts payable, approximate fair value because of their short maturities (Level 1 inputs). Carrying amounts and the related estimated fair values of the Company’s financial instruments not recorded at fair value in the financial statements are as follows: September 30, 2017 March 31, 2017 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 1,432,013 $ 1,466,578 $ 1,196,300 $ 1,178,968 The fair value of the long-term debt was calculated based on interest rates available for debt with terms and maturities similar to the Company’s existing debt arrangements, unless quoted market prices were available (Level 2 inputs).

EARNINGS PER SHARE

EARNINGS PER SHARE	6 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
EARNINGS PER SHARE	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 September 30, Six Months Ended September 30, (in thousands) (in thousands) 2017 2016 2017 2016 Weighted-average common shares outstanding – basic 49,428 49,304 49,400 49,281 Net effect of dilutive stock options and nonvested stock — 128 — 148 Weighted-average common shares outstanding – diluted 49,428 49,432 49,400 49,429

INCOME TAXES

INCOME TAXES	6 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	The Company follows the Income Taxes topic of ASC 740, which prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, as well as guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. 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. As of September 30, 2017 and March 31, 2017 , the total amount of accrued income tax-related interest and penalties was $304 and $282 , respectively. As of September 30, 2017 and March 31, 2017 , the total amount of unrecognized tax benefits was $10,875 and $10,266 , respectively, of which $10,875 and $10,266 , respectively, 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 September 30, 2017 , 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 2018 as well as the Company's projected income in future periods. The effective income tax rate for the three months ended September 30, 2017 , was 17.6% as compared to 33.8% for the three months ended September 30, 2016 . For the three months ended September 30, 2017 , contributing factors to the decrease in the effective tax rate are that the income tax provision reflects the disallowed capital loss generated from the divestiture of Embee, as well as the ratio of forecasted pre-tax book income comparative to tax credits and benefits generated by the Company. For the three months ended September 30, 2016 , the income tax provision reflected the disallowed tax benefit of $1,466 related to the capital loss generated from the divestiture of Newport News. The effective income tax rate for the six months ended September 30, 2017 , was 20.0% as compared to 32.8% for the six months ended September 30, 2016 . For the six months ended September 30, 2017 , contributing factors to the decrease in the effective tax rate are that the income tax provision reflects the disallowed capital loss generated from the divestiture of Embee, as well as the ratio of forecasted pre-tax book income comparative to tax credits and benefits generated by the Company. For the six months ended September 30, 2016 , the income tax provision reflected the disallowed tax benefit of $1,466 related to the capital loss generated from the divestiture of Newport News. With few exceptions, the Company is no longer subject to U.S. federal income tax examinations for fiscal years ended before March 31, 2011, U.S. federal income tax examinations for fiscal years ended March 31, 2012 and 2013, state or local examinations for fiscal years ended before March 31, 2013, or foreign income tax examinations by tax authorities for fiscal years ended before March 31, 2011. As of September 30, 2017 , the Company is subject to examination in one state jurisdiction. The Company has filed appeals in a prior state examination related to fiscal years ended March 31, 1999 through March 31, 2005. Because of net operating losses acquired as part of the acquisition of Vought, the Company is subject to U.S. federal income tax examinations and various state jurisdictions for the years ended December 31, 2001 and after related to previously filed Vought tax returns. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years.

GOODWILL

GOODWILL	6 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL	GOODWILL The following is a summary of the changes in the carrying value of goodwill by reportable segment, from March 31, 2017 through September 30, 2017 : Integrated Systems Precision Components Product Support Total Balance, March 31, 2017 $ 541,155 $ 532,418 $ 69,032 $ 1,142,605 Goodwill derecognized in connection with divestitures and assets held for sale (27,709 ) — — (27,709 ) Effect of exchange rate changes 6,383 3,681 (96 ) 9,968 Balance, September 30, 2017 $ 519,829 $ 536,099 $ 68,936 $ 1,124,864

PENSION AND OTHER POSTRETIREMEN

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS	6 Months Ended
	Sep. 30, 2017
Compensation and Retirement Disclosure [Abstract]
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS	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, 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 are also 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 topic of ASC 715, the Company has recognized the funded status of the benefit obligation as of the date of the last remeasurement, on the accompanying Condensed Consolidated Balance Sheets. The funded status is measured as the difference between the fair value of the plan’s assets and the pension benefit obligation or accumulated postretirement benefit obligation, of the plan. In order to recognize the funded status, the Company determined the fair value of the plan assets. The majority of the plan assets are publicly traded investments which were valued based on the market price as of the date of remeasurement. Investments that are not publicly traded were valued based on the estimated fair value of those investments based on our evaluation of data from fund managers and comparable market data. 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 September 30, Six Months Ended September 30, 2017 2016 2017 2016 Components of net periodic benefit costs: Service cost $ 1,124 $ 1,635 $ 2,244 $ 3,284 Interest cost 18,801 18,161 37,589 36,350 Expected return on plan assets (38,084 ) (39,002 ) (76,132 ) (78,059 ) Amortization of prior service credits (710 ) (445 ) (1,421 ) (891 ) Amortization of net loss 3,477 3,029 6,925 6,060 Settlement charge 523 — 523 — Net periodic benefit income $ (14,869 ) $ (16,622 ) $ (30,272 ) $ (33,256 ) Other postretirement benefits Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 Components of net periodic benefit costs: Service cost $ 102 $ 179 $ 203 $ 358 Interest cost 1,219 1,247 2,438 2,494 Amortization of prior service credits (2,328 ) (3,366 ) (4,656 ) (6,732 ) Amortization of gain (1,775 ) (1,647 ) (3,549 ) (3,294 ) Net periodic benefit income $ (2,782 ) $ (3,587 ) $ (5,564 ) $ (7,174 )

STOCKHOLDERS' EQUITY STOCKHOLDE

STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY	6 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	STOCKHOLDERS' EQUITY Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive income (loss) ("AOCI") by component for the three and six months ended September 30, 2017 and 2016 , respectively, were as follows: Currency Translation Adjustment Unrealized Gains and Losses on Derivative Instruments Defined Benefit Pension Plans and Other Postretirement Benefits Total (1) Balance June 30, 2017 $ (75,791 ) $ 2,336 $ (312,466 ) $ (385,921 ) AOCI before reclassifications 9,905 (561 ) 523 9,867 Amounts reclassified from AOCI — (2,021 ) (1,347 ) (2 ) (3,368 ) Net current period AOCI 9,905 (2,582 ) (824 ) 6,499 Balance September 30, 2017 $ (65,886 ) $ (246 ) $ (313,290 ) $ (379,422 ) Balance June 30, 2016 $ (73,613 ) $ (3,486 ) $ (286,998 ) $ (364,097 ) AOCI before reclassifications (6,821 ) 928 — (5,893 ) Amounts reclassified from AOCI — 1 (1,574 ) (2 ) (1,573 ) Net current period AOCI (6,821 ) 929 (1,574 ) (7,466 ) Balance September 30, 2016 $ (80,434 ) $ (2,557 ) $ (288,572 ) $ (371,563 ) Balance March 31, 2017 $ (87,212 ) $ 2,153 $ (311,119 ) $ (396,178 ) AOCI before reclassifications 21,326 (19 ) 523 21,830 Amounts reclassified from AOCI — (2,380 ) (2,694 ) (2 ) (5,074 ) Net current period AOCI 21,326 (2,399 ) (2,171 ) 16,756 Balance September 30, 2017 $ (65,886 ) $ (246 ) $ (313,290 ) $ (379,422 ) Balance March 31, 2016 $ (58,816 ) $ (2,920 ) $ (285,426 ) $ (347,162 ) AOCI before reclassifications (21,618 ) 373 — (21,245 ) Amounts reclassified from AOCI — (10 ) (3,146 ) (2 ) (3,156 ) Net current period AOCI (21,618 ) 363 (3,146 ) (24,401 ) Balance September 30, 2016 $ (80,434 ) $ (2,557 ) $ (288,572 ) $ (371,563 ) (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. Issuance of Restricted Stock Awards and Stock Options Included in the employment agreement for the Company's CEO were restricted stock awards totaling 179,134 shares. The awards generally vest in full after four to seven years. The fair value of the awards is determined by the product of the number of shares granted, the grant date market price of the Company's stock and adjusted for the market conditions necessary to achieve the awards. Certain of these awards contain performance conditions, in addition to service conditions. The fair value of the awards is expensed over a graded vesting period of the requisite service period of four to seven years. In addition the employment agreement included 150,000 stock options with an exercise price of $30.86 , a contractual term of 10 years and vesting over a 4 -year period.

SEGMENTS

SEGMENTS	6 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
SEGMENTS	SEGMENTS The Company has four reportable segments: Integrated Systems, Aerospace Structures, Precision Components and Product Support. The Company’s reportable segments are aligned with how the business is managed and views the markets that the Company 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 (“Adjusted EBITDA”) as a primary measure of segment profitability to evaluate performance of its segments and allocate resources. Integrated Systems consists of the Company’s operations that provides 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 electro-mechanical 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; hydro-mechanical and electromechanical primary and secondary flight controls; and a broad spectrum of surface treatment options. Aerospace Structures consists of the Company’s operations that supply commercial, business, regional and military manufacturers with large metallic and composite structures. Products include wings, wing boxes, fuselage panels, horizontal and vertical tails and sub-assemblies such as floor grids. Inclusive of most of the former Vought Aircraft Division, Aerospace Structures also has the capability to engineer detailed structural designs in metal and composites. Precision Components consists of the Company’s operations that produce close-tolerance parts primarily to customer designs and model-based definition, including a wide range of aluminum, hard metal and composite structure capabilities. Capabilities include complex machining, gear manufacturing, sheet metal fabrication, forming, advanced composite and interior structures, joining processes such as welding, autoclave bonding and conventional mechanical fasteners and a variety of special processes including: super plastic titanium forming, aluminum and titanium chemical milling and surface treatments. Product Support consists of the Company’s operations that provide 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 MRO supply chain. Through its line maintenance, component MRO and postproduction supply chain activities, Product Support is positioned to provide integrated planeside repair solutions globally. Capabilities include fuel tank repair, metallic and composite aircraft structures, nacelles, thrust reversers, interiors, auxiliary power units and a wide variety of pneumatic, hydraulic, fuel and mechanical accessories. Segment Adjusted EBITDA 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, including restructuring of $14,708 for the six months ended September 30, 2017 . 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 and the reconciliation of Adjusted EBITDA to operating income is as follows: Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 Net sales: Integrated Systems $ 233,765 $ 245,367 $ 471,900 $ 502,723 Aerospace Structures 249,284 320,283 525,260 651,879 Precision Components 229,156 259,458 466,026 514,060 Product Support 68,366 85,826 134,799 170,025 Elimination of inter-segment sales (35,415 ) (36,165 ) (71,140 ) (70,665 ) $ 745,156 $ 874,769 $ 1,526,845 $ 1,768,022 Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 (Loss) income before income taxes: Operating income (expense): Integrated Systems $ 42,087 $ 45,797 $ 89,504 $ 93,783 Aerospace Structures 11,513 24,867 11,231 34,031 Precision Components (1,611 ) 12,063 (4,875 ) 4,281 Product Support 11,233 14,265 19,670 28,324 Corporate (44,374 ) (26,506 ) (78,273 ) (43,207 ) 18,848 70,486 37,257 117,212 Interest expense and other 25,375 17,896 46,393 36,023 $ (6,527 ) $ 52,590 $ (9,136 ) $ 81,189 Depreciation and amortization: Integrated Systems $ 9,588 $ 10,157 $ 19,539 $ 20,461 Aerospace Structures 19,046 18,385 38,437 36,347 Precision Components 10,259 14,016 18,008 28,345 Product Support 1,667 2,452 3,405 4,936 Corporate 308 276 610 659 $ 40,868 $ 45,286 $ 79,999 $ 90,748 Amortization of acquired contract liabilities, net: Integrated Systems $ 9,299 $ 9,136 $ 16,602 $ 19,473 Aerospace Structures 17,670 20,647 38,963 39,085 Precision Components 929 694 1,806 1,267 $ 27,898 $ 30,477 $ 57,371 $ 59,825 Adjusted EBITDA: Integrated Systems $ 42,376 $ 46,818 $ 92,441 $ 94,771 Aerospace Structures 12,889 22,605 10,705 31,293 Precision Components 7,719 25,385 11,327 31,359 Product Support 12,900 16,717 23,075 33,260 Corporate (23,172 ) (21,456 ) (56,769 ) (37,774 ) $ 52,712 $ 90,069 $ 80,779 $ 152,909 Capital expenditures: Integrated Systems $ 1,455 $ 2,595 $ 4,020 $ 5,823 Aerospace Structures 2,702 3,759 7,119 7,592 Precision Components 5,094 3,503 9,156 8,405 Product Support 769 703 1,030 1,333 Corporate 670 684 1,450 814 $ 10,690 $ 11,244 $ 22,775 $ 23,967 September 30, 2017 March 31, 2017 Total Assets: Integrated Systems $ 1,217,998 $ 1,281,828 Aerospace Structures 1,503,886 1,548,239 Precision Components 1,254,729 1,262,691 Product Support 278,346 284,231 Corporate 26,987 37,611 $ 4,281,946 $ 4,414,600 During the three months ended September 30, 2017 and 2016 , the Company had international sales of $166,637 and $182,706 , respectively. During the six months ended September 30, 2017 and 2016 , the Company had international sales of $345,044 and $363,125 , respectively.

SELECTED CONSOLIDATING FINANCIA

SELECTED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS	6 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
SELECTED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS	SELECTED CONDENSED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS The 2021 Notes, the 2022 Notes and the 2025 Notes are fully and unconditionally guaranteed on a joint and several basis by the Guarantor Subsidiaries. The total assets, stockholders' equity, revenue, earnings and cash flows from operating activities of the Guarantor Subsidiaries exceeded a majority of the consolidated total of such items as of and for the periods reported. The only consolidated subsidiaries of the Company that are not guarantors of the 2021 Notes, the 2022 Notes and the 2025 Notes (the “Non-Guarantor Subsidiaries”) are: (a) the receivables securitization special-purpose entity; and (b) the foreign operating subsidiaries. The following tables present condensed consolidating financial statements including the Company (the “Parent”), the Guarantor Subsidiaries, and the Non-Guarantor Subsidiaries. Such financial statements include summary Condensed Consolidating Balance Sheets as of September 30, 2017 and March 31, 2017 , Condensed Consolidating Statements of Comprehensive Income for the three and six months ended September 30, 2017 and 2016 , and Condensed Consolidating Statements of Cash Flows for the six months ended September 30, 2017 and 2016 . SUMMARY CONDENSED CONSOLIDATING BALANCE SHEETS: September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Current assets: Cash and cash equivalents $ 654 $ 42 $ 32,973 $ — $ 33,669 Trade and other receivables, net — 80,970 249,164 — 330,134 Inventories — 1,254,772 113,943 — 1,368,715 Prepaid expenses and other 7,773 8,974 12,103 — 28,850 Total current assets 8,427 1,344,758 408,183 — 1,761,368 Property and equipment, net 10,309 635,234 123,341 — 768,884 Goodwill and other intangible assets, net — 1,470,637 187,857 — 1,658,494 Other, net 22,246 48,730 22,224 — 93,200 Intercompany investments and advances 2,280,189 81,541 75,874 (2,437,604 ) — Total assets $ 2,321,171 $ 3,580,900 $ 817,479 $ (2,437,604 ) $ 4,281,946 Current liabilities: Current portion of long-term debt $ 349 $ 22,534 $ — $ — $ 22,883 Accounts payable 5,769 341,091 41,361 — 388,221 Accrued expenses 53,079 430,313 45,396 — 528,788 Total current liabilities 59,197 793,938 86,757 — 939,892 Long-term debt, less current portion 1,274,818 45,512 88,800 — 1,409,130 Intercompany advances 118,656 1,987,567 387,680 (2,493,903 ) — Accrued pension and other postretirement benefits, noncurrent 3,177 546,034 — — 549,211 Deferred income taxes and other 9,478 479,510 38,880 — 527,868 Total stockholders’ equity 855,845 (271,661 ) 215,362 56,299 855,845 Total liabilities and stockholders’ equity $ 2,321,171 $ 3,580,900 $ 817,479 $ (2,437,604 ) $ 4,281,946 SUMMARY CONDENSED CONSOLIDATING BALANCE SHEETS: March 31, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Current assets: Cash and cash equivalents $ 19,942 $ 24,137 $ 25,554 $ — $ 69,633 Trade and other receivables, net 546 34,874 276,372 — 311,792 Inventories — 1,243,461 96,714 — 1,340,175 Prepaid expenses and other 7,763 11,678 10,623 — 30,064 Assets held for sale — 3,250 18,005 — 21,255 Total current assets 28,251 1,317,400 427,268 — 1,772,919 Property and equipment, net 8,315 673,153 123,562 — 805,030 Goodwill and other intangible assets, net — 1,560,050 174,919 — 1,734,969 Other, net 17,902 67,955 15,825 — 101,682 Intercompany investments and advances 2,057,534 81,541 77,090 (2,216,165 ) — Total assets $ 2,112,002 $ 3,700,099 $ 818,664 $ (2,216,165 ) $ 4,414,600 Current liabilities: Current portion of long-term debt $ 33,298 $ 14,432 $ 112,900 $ — $ 160,630 Accounts payable 17,291 426,646 37,306 — 481,243 Accrued expenses 53,829 578,457 42,093 — 674,379 Liabilities related to assets held for sale — — 18,008 — 18,008 Total current liabilities 104,418 1,019,535 210,307 — 1,334,260 Long-term debt, less current portion 974,693 60,977 — — 1,035,670 Intercompany advances 178,381 1,754,529 370,907 (2,303,817 ) — Accrued pension and other postretirement benefits, noncurrent 6,633 585,501 — — 592,134 Deferred income taxes and other 1,403 564,358 40,302 — 606,063 Total stockholders’ equity 846,474 (284,801 ) 197,148 87,652 846,473 Total liabilities and stockholders’ equity $ 2,112,002 $ 3,700,099 $ 818,664 $ (2,216,165 ) $ 4,414,600 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 676,026 $ 89,750 $ (20,620 ) $ 745,156 Operating costs and expenses: Cost of sales — 527,417 73,067 (20,620 ) 579,864 Selling, general and administrative 18,921 47,927 7,733 — 74,581 Depreciation and amortization 308 36,402 4,158 — 40,868 Restructuring 4,159 4,800 1,142 — 10,101 Loss on divestitures 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 44,282 616,546 86,100 (20,620 ) 726,308 Operating (loss) income (44,282 ) 59,480 3,650 — 18,848 Intercompany interest and charges (39,713 ) 37,726 1,987 — — Interest expense and other 22,364 2,606 405 — 25,375 (Loss) income before income taxes (26,933 ) 19,148 1,258 — (6,527 ) Income tax (benefit) expense (8,675 ) 9,936 (2,410 ) — (1,149 ) Net (loss) income (18,258 ) 9,212 3,668 — (5,378 ) Other comprehensive (loss) income (2,582 ) (824 ) 9,905 — 6,499 Total comprehensive (loss) income $ (20,840 ) $ 8,388 $ 13,573 $ — $ 1,121 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 798,537 $ 96,802 $ (20,570 ) $ 874,769 Operating costs and expenses: Cost of sales — 615,237 78,765 (20,570 ) 673,432 Selling, general and administrative 13,654 49,607 7,068 — 70,329 Depreciation and amortization 277 40,794 4,215 — 45,286 Restructuring 7,740 2,495 227 — 10,462 Loss on divestitures 4,774 — — — 4,774 26,445 708,133 90,275 (20,570 ) 804,283 Operating (loss) income (26,445 ) 90,404 6,527 — 70,486 Intercompany interest and charges (47,505 ) 45,269 2,236 — — Interest expense and other 17,737 2,487 (2,328 ) — 17,896 Income before income taxes 3,323 42,648 6,619 — 52,590 Income (benefit) tax expense (430 ) 16,828 1,385 — 17,783 Net income 3,753 25,820 5,234 — 34,807 Other comprehensive (income) loss 929 (1,574 ) (6,821 ) — (7,466 ) Total comprehensive income (loss) $ 4,682 $ 24,246 $ (1,587 ) $ — $ 27,341 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Six Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 1,391,100 $ 177,659 $ (41,914 ) $ 1,526,845 Operating costs and expenses: Cost of sales — 1,102,803 146,321 (41,914 ) 1,207,210 Selling, general and administrative 41,906 92,773 19,204 — 153,883 Depreciation and amortization 610 71,175 8,214 — 79,999 Restructuring 14,707 11,246 1,649 — 27,602 Loss on divestiture 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 78,117 1,277,997 175,388 (41,914 ) 1,489,588 Operating (loss) income (78,117 ) 113,103 2,271 — 37,257 Intercompany interest and charges (82,953 ) 78,746 4,207 — — Interest expense and other 39,404 5,386 1,603 — 46,393 (Loss) income before income taxes (34,568 ) 28,971 (3,539 ) — (9,136 ) Income tax (benefit) expense (15,748 ) 15,699 (1,778 ) — (1,827 ) Net (loss) income (18,820 ) 13,272 (1,761 ) — (7,309 ) Other comprehensive (loss) income (2,399 ) (2,171 ) 21,326 — 16,756 Total comprehensive (loss) income $ (21,219 ) $ 11,101 $ 19,565 $ — $ 9,447 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Six Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 1,615,964 $ 191,452 $ (39,394 ) $ 1,768,022 Operating costs and expenses: Cost of sales — 1,283,858 155,356 (39,394 ) 1,399,820 Selling, general and administrative 28,097 95,500 14,758 — 138,355 Depreciation and amortization 659 81,561 8,528 — 90,748 Restructuring 9,600 7,286 227 — 17,113 Loss on divestiture 4,774 — — — 4,774 43,130 1,468,205 178,869 (39,394 ) 1,650,810 Operating (loss) income (43,130 ) 147,759 12,583 — 117,212 Intercompany interest and charges (99,069 ) 94,442 4,627 — — Interest expense and other 35,118 4,765 (3,860 ) — 36,023 Income before income taxes 20,821 48,552 11,816 — 81,189 Income tax expense 1,619 22,117 2,912 — 26,648 Net income 19,202 26,435 8,904 — 54,541 Other comprehensive income (loss) 363 (3,146 ) (21,618 ) — (24,401 ) Total comprehensive income (loss) $ 19,565 $ 23,289 $ (12,714 ) $ — $ 30,140 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS: For the Six Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net (loss) income $ (18,820 ) $ 13,272 $ (1,761 ) $ — $ (7,309 ) Adjustments to reconcile net income to net cash (used in) operating activities provided by (1,865 ) (317,020 ) 25,710 1,419 (291,756 ) Net cash (used in) provided by operating activities (20,685 ) (303,748 ) 23,949 1,419 (299,065 ) Capital expenditures (1,449 ) (19,215 ) (2,111 ) — (22,775 ) Proceeds from sale of assets — 67,633 249 — 67,882 Net cash (used in) provided by investing activities (1,449 ) 48,418 (1,862 ) — 45,107 Net increase in revolving credit facility 87,393 — — — 87,393 Proceeds on issuance of debt 500,000 — 10,800 — 510,800 Retirements and repayments of debt (314,485 ) (7,661 ) (34,900 ) — (357,046 ) Payments of deferred financing costs (17,120 ) — — — (17,120 ) Dividends paid (3,970 ) — — — (3,970 ) Repurchase of restricted shares for minimum tax obligation (334 ) — — — (334 ) Intercompany financing and advances (248,638 ) 238,896 11,161 (1,419 ) — Net cash provided by (used in)financing activities 2,846 231,235 (12,939 ) (1,419 ) 219,723 Effect of exchange rate changes on cash — — (1,729 ) — (1,729 ) Net change in cash and cash equivalents (19,288 ) (24,095 ) 7,419 — (35,964 ) Cash and cash equivalents at beginning of period 19,942 24,137 25,554 — 69,633 Cash and cash equivalents at end of period $ 654 $ 42 $ 32,973 $ — $ 33,669 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS: For the Six Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net income $ 19,202 $ 26,435 $ 8,904 $ — $ 54,541 Adjustments to reconcile net income to net cash provided by (used in) operating activities 14,409 (219,316 ) 18,470 660 (185,777 ) Net cash provided by (used in) operating activities 33,611 (192,881 ) 27,374 660 (131,236 ) Capital expenditures (814 ) (17,154 ) (5,999 ) — (23,967 ) Proceeds from sale of assets — 9,143 901 — 10,044 Acquisitions, net of cash acquired — 9 — — 9 Net cash used in investing activities (814 ) (8,002 ) (5,098 ) — (13,914 ) Net increase in revolving credit facility 252,396 — — — 252,396 Proceeds on issuance of debt — — 12,700 — 12,700 Retirements and repayments of debt (14,206 ) (7,228 ) (52,400 ) — (73,834 ) Payments of deferred financing costs (11,079 ) — — — (11,079 ) Dividends paid (3,962 ) — — — (3,962 ) Repayment of government grant — (14,570 ) — — (14,570 ) Repurchase of restricted shares for minimum tax obligations (182 ) — — — (182 ) Intercompany financing and advances (256,657 ) 227,339 29,978 (660 ) — Net cash (used in) provided by financing activities (33,690 ) 205,541 (9,722 ) (660 ) 161,469 Effect of exchange rate changes on cash — — (1,088 ) — (1,088 ) Net change in cash and cash equivalents (893 ) 4,658 11,466 — 15,231 Cash and cash equivalents at beginning of period 1,544 201 19,239 — 20,984 Cash and cash equivalents at end of period $ 651 $ 4,859 $ 30,705 $ — $ 36,215

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Sep. 30, 2017
Commitments and Contingencies [Abstract]
Commitments and Contingencies Disclosure [Text Block]	COMMITMENTS AND CONTINGENCIES 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.

RESTRUCTURING COSTS RESTRUCTURI

RESTRUCTURING COSTS RESTRUCTURING COSTS	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Costs [Table Text Block]	The restructuring charges recognized for the three and six months ended September 30, 2017 and 2016 , by type and by segment consisted of the following: For the Three Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 491 $ — $ — $ 491 Facility closure and other exit costs 70 2,098 2,388 — — 4,556 Other 129 — 766 — 4,159 5,054 Total Restructuring 199 2,098 3,645 — 4,159 10,101 Depreciation and amortization 981 — 314 — — 1,295 Total $ 1,180 $ 2,098 $ 3,959 $ — $ 4,159 $ 11,396 For the Three Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 445 $ 65 $ — $ 1,046 Facility closure and other exit costs — — — 35 — 35 Other — 960 612 68 7,741 9,381 Total Restructuring 286 1,210 1,057 168 7,741 10,462 Depreciation and amortization 47 — 3,549 144 — 3,740 Total $ 333 $ 1,210 $ 4,606 $ 312 $ 7,741 $ 14,202 For the Six Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 747 $ — $ — $ 747 Facility closure and other exit costs 70 3,504 4,286 — — 7,860 Other 744 — 2,783 760 14,708 18,995 Total Restructuring 814 3,504 7,816 760 14,708 27,602 Depreciation and amortization 1,527 — 629 — — 2,156 Total $ 2,341 $ 3,504 $ 8,445 $ 760 $ 14,708 $ 29,758 For the Six Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 472 $ 90 $ — $ 1,098 Facility closure and other exit costs — — 247 35 — 282 Other — 4,012 2,052 68 9,601 15,733 Total Restructuring 286 4,262 2,771 193 9,601 17,113 Depreciation and amortization 93 — 6,849 289 — 7,231 Total $ 379 $ 4,262 $ 9,620 $ 482 $ 9,601 $ 24,344	14. RESTRUCTURING COSTS During the fiscal year ended March 31, 2017, the Company committed to a restructuring of certain of its businesses as well as the consolidation of certain of its facilities ("2017 Restructuring Plan"). The Company expects to reduce its footprint by approximately 1.0 million square feet, to reduce head count by approximately 100 employees and to amend certain contracts. Over the next few fiscal years, the Company estimates that it will record aggregate pre-tax charges of $55,000 to $60,000 related to these programs, which represent employee termination benefits, contract termination costs, accelerated depreciation and facility closure and other exit costs, and will result in future cash outlays. During the fiscal year ended March 31, 2016, the Company committed to a restructuring of certain of its businesses as well as the consolidation of certain of its facilities ("2016 Restructuring Plan"). The Company expects to reduce its footprint by approximately 3.5 million square feet and to reduce head count by approximately 1,200 employees. Over the next few fiscal years, the Company estimates that it will record aggregate pre-tax charges of $140,000 to $150,000 related to these programs, which represent employee termination benefits, contract termination costs, accelerated depreciation and facility closure and other exit costs, and will result in future cash outlays. The following table provides a summary of the Company's current aggregate cost estimates by major type of expense associated with the restructuring plans noted above: Type of expense: Total estimated amount expected to be incurred Termination benefits $ 21,000 Facility closure and other exit costs (1) 44,000 Contract termination costs 18,000 Accelerated depreciation charges (2) 37,000 Other (3) 89,000 $ 209,000 (1) I ncludes costs to transfer product lines among facilities and outplacement and employee relocation costs. (2) Accelerated depreciation charges are recorded as part of Depreciation and amortization on the Consolidated Statement of Operations. (3) Consists of other costs directly related to the plan, including project management, legal, regulatory costs and other transformation related costs, such as costs to amend certain contracts. The restructuring charges recognized for the three and six months ended September 30, 2017 and 2016 , by type and by segment consisted of the following: For the Three Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 491 $ — $ — $ 491 Facility closure and other exit costs 70 2,098 2,388 — — 4,556 Other 129 — 766 — 4,159 5,054 Total Restructuring 199 2,098 3,645 — 4,159 10,101 Depreciation and amortization 981 — 314 — — 1,295 Total $ 1,180 $ 2,098 $ 3,959 $ — $ 4,159 $ 11,396 For the Three Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 445 $ 65 $ — $ 1,046 Facility closure and other exit costs — — — 35 — 35 Other — 960 612 68 7,741 9,381 Total Restructuring 286 1,210 1,057 168 7,741 10,462 Depreciation and amortization 47 — 3,549 144 — 3,740 Total $ 333 $ 1,210 $ 4,606 $ 312 $ 7,741 $ 14,202 For the Six Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 747 $ — $ — $ 747 Facility closure and other exit costs 70 3,504 4,286 — — 7,860 Other 744 — 2,783 760 14,708 18,995 Total Restructuring 814 3,504 7,816 760 14,708 27,602 Depreciation and amortization 1,527 — 629 — — 2,156 Total $ 2,341 $ 3,504 $ 8,445 $ 760 $ 14,708 $ 29,758 For the Six Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 472 $ 90 $ — $ 1,098 Facility closure and other exit costs — — 247 35 — 282 Other — 4,012 2,052 68 9,601 15,733 Total Restructuring 286 4,262 2,771 193 9,601 17,113 Depreciation and amortization 93 — 6,849 289 — 7,231 Total $ 379 $ 4,262 $ 9,620 $ 482 $ 9,601 $ 24,344 Termination benefits include employee retention, severance and benefit payments for terminated employees. Facility closure costs include general operating costs incurred subsequent to production shutdown as well as equipment relocation and other associated costs. Contract termination costs include costs associated with terminating existing leases and supplier agreements. Other transformation costs include legal, outplacement and employee relocation costs, and other employee-related costs and costs to amend certain contracts.

SUMMARY OF SIGNIFICANT ACCOUN22

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
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 financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue Recognition	Revenue Recognition Revenues are generally recognized in accordance with the contract terms when products are shipped, delivery has occurred or services have been rendered, pricing is fixed and determinable, and collection is reasonably assured. A significant portion of the Company’s contracts are within the scope of the Revenue Recognition - Construction-Type and Production-Type Contracts topic of the Accounting Standards Codification ("ASC") 605-35 and revenue and costs on contracts are recognized using the percentage-of-completion method of accounting. Accounting for the revenue and profit on a contract requires estimates of (1) the contract value or total contract revenue, (2) the total costs at completion, which is equal to the sum of the actual incurred costs to date on the contract and the estimated costs to complete the contract’s scope of work, and (3) the measurement of progress toward completion. Depending on the contract, the Company measures progress toward completion using either the cost-to-cost method or the units-of-delivery method of accounting, with the great majority measured under the units-of-delivery method of accounting. • Under the cost-to-cost method of accounting, progress toward completion is measured as the ratio of total costs incurred to estimated total costs at completion. Costs are recognized as incurred. Profit is determined based on estimated profit margin on the contract multiplied by the progress toward completion. Revenue represents the sum of costs and profit on the contract for the period. • Under the units-of-delivery method of accounting, revenue on a contract is recorded as the units are delivered and accepted during the period at an amount equal to the contractual selling price of those units. The costs recorded on a contract under the units-of-delivery method of accounting are equal to the total costs at completion divided by the total units to be delivered. As contracts can span multiple years, the Company often segments the contracts into production lots for the purposes of accumulating and allocating cost. Profit is recognized as the difference between revenue for the units delivered and the estimated costs for the units delivered. Adjustments to original estimates for a contract’s revenues, estimated costs at completion and estimated total profit are often required as work progresses under a contract, as experience is gained and as more information is obtained, even though the scope of work required under the contract may not change, or if contract modifications occur. These estimates are also sensitive to the assumed rate of production. Generally, the longer it takes to complete the contract quantity, the more relative overhead that contract will absorb. The impact of revisions in cost estimates is recognized on a cumulative catch-up basis in the period in which the revisions are made. Provisions for anticipated losses on contracts are recorded in the period in which they become evident (‘‘forward losses’’) and are first offset against costs that are included in inventory, with any remaining amount reflected in accrued contract liabilities in accordance with the Revenue Recognition - Construction-Type and Production-Type Contracts topic. Revisions in contract estimates, if significant, can materially affect results of operations and cash flows, as well as valuation of inventory. Furthermore, certain contracts are combined or segmented for revenue recognition in accordance with the Revenue Recognition - Construction-Type and Production-Type Contracts topic. During the quarter ended September 30, 2016, the Company discovered an immaterial error in its percentage-of-completion accounting for one of its contracts, which understated cost of sales and overstated net income for the three months ended June 30, 2016, in the amount of $11,800 and $8,142 , respectively, and overstated retained earnings as of March 31, 2016 in the amount of $12,700 . The Company assessed the materiality of this error on previously issued financial statements in accordance with the ASC 250, Presentation of Financial Statements , and Securities and Exchange Commission (SEC) Staff Accounting Bulletin No. 99, Materialit y. The Company concluded, based on a review of the quantitative and qualitative factors of the materiality of the amount, that the error was not material to any previously issued financial statements and that the correction of the error in the three months ended September 30, 2016 was not material to that period’s financial statements. Accordingly, in order to correct this immaterial error, the Company recorded a charge to "Cost of sales" in the amount of $24,500 , which is presented on the accompanying Condensed Consolidated Statements of Income during the three months ended September 30, 2016. For the three months ended September 30, 2017 , cumulative catch-up adjustments from changes in estimates, inclusive of changes in forward loss estimates, increased operating income, net income and earnings per share by approximately $8,416 , $6,733 and $0.14 , net of tax, respectively. For the three months ended September 30, 2016 cumulative catch-up adjustments were balanced between positive and negative variances. For the six months ended September 30, 2017 , cumulative catch-up adjustments from changes in estimates, inclusive of changes in forward loss estimates, increased operating income, net income and earnings per share by approximately $7,916 , $6,333 and $0.13 , net of tax, respectively. For the six months ended September 30, 2016 , cumulative catch-up adjustments from changes in estimates decreased operating income, net income and earnings per share by approximately $(20,716) , $(13,917) and $(0.28) , net of tax, respectively. Amounts representing contract change orders or claims are only included in revenue when such change orders or claims have been settled with the customer and to the extent that units have been delivered. Additionally, some contracts may contain provisions for revenue sharing, price re-determination, requests for equitable adjustments, change orders or cost and/or performance incentives. Such amounts or incentives are included in contract value when the amounts can be reliably estimated and their realization is reasonably assured. Although fixed-price contracts, which extend several years into the future, generally permit the Company to keep unexpected profits if costs are less than projected, the Company also bears the risk that increased or unexpected costs may reduce profit or cause the Company to sustain losses on the contract. In a fixed-price contract, the Company must fully absorb cost overruns, notwithstanding the difficulty of estimating all of the costs the Company will incur in performing these contracts and in projecting the ultimate level of revenue that may otherwise be achieved. As previously disclosed, the Company recognized provisions for forward losses associated with our long-term contracts on the 747-8 and Bombardier programs. There is still risk similar to what the Company has experienced on the 747-8 and Bombardier programs. Particularly, the Company's ability to manage risks related to supplier performance, execution of cost reduction strategies, hiring and retaining skilled production and management personnel, quality and manufacturing execution, program schedule delays, potential need to negotiate facility lease extensions or alternatively relocate work and many other risks, will determine the ultimate performance of these programs. Included in net sales of Integrated Systems, Aerospace Structures and Precision Components, is the non-cash amortization of acquired contract liabilities that were recognized as fair value adjustments through purchase accounting from various acquisitions. For the three months ended September 30, 2017 and 2016 , the Company recognized $27,898 and $30,477 , respectively, into net sales on the accompanying Condensed Consolidated Statements of Income. For the six months ended September 30, 2017 and 2016 , the Company recognized $57,371 and $59,825 , respectively, into net sales on the accompanying Condensed Consolidated Statements of Income. Product Support provides repair and overhaul services, of which a small portion of services are provided under long-term power-by-the-hour contracts. The Company applies the proportional performance method of accounting to recognize revenue under these contracts. Revenue is recognized over the contract period as units are delivered based on the relative value in proportion to the total estimated contract consideration. In estimating the total contract consideration, management evaluates the projected utilization of its customers’ fleet over the term of the contract, in connection with the related estimated repair and overhaul servicing requirements to the fleet based on such utilization. Changes in utilization of the fleet by customers, among other factors, may have an impact on these estimates and require adjustments to estimates of revenue to be realized.
Concentration of Credit Risk	Concentration of Credit Risk The Company’s trade 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 Boeing (representing commercial, military and space) represented approximately 15% and 5% of total trade accounts receivable as of September 30, 2017 and March 31, 2017 , respectively. Trade accounts receivable from Gulfstream (representing commercial, military and space) represented approximately 12% and 3% of total trade accounts receivable as of September 30, 2017 and March 31, 2017 , respectively. The Company had no other concentrations of credit risk of more than 10% . Sales to Boeing for the six months ended September 30, 2017 , were $507,330 , or 33% of net sales, of which $105,304 , $201,865 , $195,952 and $4,209 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, respectively. Sales to Boeing for the six months ended September 30, 2016 , were $657,901 , or 37% of net sales, of which $106,838 , $311,658 , $223,256 and $16,149 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, respectively. Sales to Gulfstream for the six months ended September 30, 2017 , were $198,525 , or 13% of net sales, of which $654 , $191,799 , $5,875 and $197 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, respectively. Sales to Gulfstream for the six months ended September 30, 2016 , were $216,651 , or 12% of net sales, of which $1,083 , $209,684 , $5,782 and $102 were from the Integrated Systems, Aerospace Structures, Precision Components and Product Support, 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.
Stock-Based Compensation	Stock-Based Compensation The Company recognizes compensation expense for share-based awards based on the fair value of those awards at the date of grant. Stock-based compensation expense for the three months ended September 30, 2017 and 2016 , was $3,459 and $2,024 , respectively. Stock-based compensation expense for the six months ended September 30, 2017 and 2016 , was $3,418 and $3,976 , respectively. The Company has classified share-based compensation within selling, general and administrative expenses to correspond with the same line item as the majority of the cash compensation paid to employees. Upon the exercise of stock options or vesting of restricted stock, the Company first transfers treasury stock, then issues new shares.
Intangibles policy [Policy Text Block]	Intangible Assets The components of intangible assets, net, are as follows: September 30, 2017 Weighted- Average Life Gross Carrying Amount Accumulated Amortization Net Customer relationships 17.1 $ 620,783 $ (237,521 ) $ 383,262 Product rights, technology and licenses 11.4 54,960 (40,661 ) 14,299 Non-compete agreements and other 16.3 2,756 (876 ) 1,880 Tradenames 10.0 150,000 (15,811 ) 134,189 Total intangibles, net $ 828,499 $ (294,869 ) $ 533,630 March 31, 2017 Weighted- Average Life Gross Carrying Amount Accumulated Amortization Net Customer relationships 16.6 $ 663,165 $ (241,124 ) $ 422,041 Product rights, technology and licenses 11.4 54,347 (39,486 ) 14,861 Non-compete agreements and other 16.3 2,756 (786 ) 1,970 Tradenames 10.3 163,000 (9,508 ) 153,492 Total intangibles, net $ 883,268 $ (290,904 ) $ 592,364 Amortization expense for the three months ended September 30, 2017 and 2016 , was $14,550 and $13,586 , respectively. Amortization expense for the six months ended September 30, 2017 and 2016 , was $29,375 and $27,217 , respectively.
Fair Value Measurement, Policy [Policy Text Block]	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 to its divestitures and interest rate swap (see Note 3 and Note 5).
Product Warranty Disclosure [Text Block]	Warranty Reserves A reserve has been established to provide for the estimated future cost of warranties on our delivered products. The Company periodically reviews the reserves and adjustments are made accordingly. A provision for warranty on products delivered is made on the basis of historical experience and identified warranty issues. Warranties cover such factors as non-conformance to specifications and defects in material and workmanship. The majority of the Company's agreements include a three -year warranty, although certain programs have warranties up to 20 years. The warranty reserves as of September 30, 2017 and March 31, 2017 , were $81,552 and $107,088 , respectively
Cash Flow, Supplemental Disclosures [Text Block]	Supplemental Cash Flow Information The Company paid $5,133 and $2,169 for income taxes, net of refunds, for the six months ended September 30, 2017 and 2016 , respectively. The Company made interest payments of $31,507 and $34,514 for the six months ended September 30, 2017 and 2016 , respectively. During the six months ended September 30, 2017 and 2016 , the Company financed $1,153 and $11,427 , respectively, of property and equipment additions through capital leases. As of September 30, 2017 , the Company remains able to purchase an additional 2,277,789 shares under the existing stock repurchase program. However, there are certain restrictions placed on the repurchase program by the Company's lenders that prevent any repurchases at this time.

SUMMARY OF SIGNIFICANT ACCOUN23

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	6 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table Text Block]	September 30, 2017 Weighted- Average Life Gross Carrying Amount Accumulated Amortization Net Customer relationships 17.1 $ 620,783 $ (237,521 ) $ 383,262 Product rights, technology and licenses 11.4 54,960 (40,661 ) 14,299 Non-compete agreements and other 16.3 2,756 (876 ) 1,880 Tradenames 10.0 150,000 (15,811 ) 134,189 Total intangibles, net $ 828,499 $ (294,869 ) $ 533,630 March 31, 2017 Weighted- Average Life Gross Carrying Amount Accumulated Amortization Net Customer relationships 16.6 $ 663,165 $ (241,124 ) $ 422,041 Product rights, technology and licenses 11.4 54,347 (39,486 ) 14,861 Non-compete agreements and other 16.3 2,756 (786 ) 1,970 Tradenames 10.3 163,000 (9,508 ) 153,492 Total intangibles, net $ 883,268 $ (290,904 ) $ 592,364

INVENTORIES (Tables)

INVENTORIES (Tables)	6 Months Ended
	Sep. 30, 2017
Preproduction Costs Related to Long Term Supply Arrangements, Costs Capitalized [Line Items]
Preproduction Costs Related to Long Term Supply Arrangements, Costs Capitalized [Table Text Block]	The balance of development program inventory, comprised principally of capitalized pre-production costs, excluding progress payments related to the Company's contracts with Bombardier for the Global 7000/8000 program ("Bombardier") and Embraer for the second generation E-Jet program ("Embraer") are as follows: September 30, 2017 Inventory Capitalized Pre-Production Forward Loss Provision Total Inventory, net Bombardier $ 195,157 $ 648,804 $ (374,800 ) $ 469,161 Embraer 29,550 178,262 (4,587 ) 203,225 Total $ 224,707 $ 827,066 $ (379,387 ) $ 672,386 March 31, 2017 Inventory Capitalized Pre-Production Forward Loss Provision Total Inventory, net Bombardier $ 89,650 $ 589,449 $ (399,758 ) $ 279,341 Embraer 14,987 173,169 (5,800 ) 182,356 Total $ 104,637 $ 762,618 $ (405,558 ) $ 461,697
Schedule of components of inventories	September 30, 2017 March 31, 2017 Raw materials $ 83,511 $ 89,069 Work-in-process, including manufactured and purchased components 1,547,690 1,297,989 Finished goods 109,931 118,265 Rotable assets 56,768 57,337 Less: unliquidated progress payments (429,185 ) (222,485 ) Total inventories $ 1,368,715 $ 1,340,175

LONG-TERM DEBT LONG-TERM DEBT (

LONG-TERM DEBT LONG-TERM DEBT (Tables)	6 Months Ended
	Sep. 30, 2017
Long-term debt
Schedule of Long-term Debt Instruments [Table Text Block]	September 30, 2017 March 31, 2017 Revolving line of credit $ 117,393 $ 29,999 Term loan — 309,375 Receivable securitization facility 88,800 112,900 Capital leases 61,480 72,800 Senior notes due 2021 375,000 375,000 Senior notes due 2022 300,000 300,000 Senior notes due 2025 500,000 — Other debt 7,978 7,978 Less: Debt issuance costs (18,638 ) (11,752 ) 1,432,013 1,196,300 Less: Current portion 22,883 160,630 $ 1,409,130 $ 1,035,670

LONG-TERM DEBT Fair Value Measu

LONG-TERM DEBT Fair Value Measurements (Tables)	6 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping [Table Text Block]	September 30, 2017 March 31, 2017 Carrying Value Fair Value Carrying Value Fair Value Long-term debt $ 1,432,013 $ 1,466,578 $ 1,196,300 $ 1,178,968

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Reconciliation between the weighted average outstanding shares used in calculation of basic and diluted earnings per share	Three Months Ended September 30, Six Months Ended September 30, (in thousands) (in thousands) 2017 2016 2017 2016 Weighted-average common shares outstanding – basic 49,428 49,304 49,400 49,281 Net effect of dilutive stock options and nonvested stock — 128 — 148 Weighted-average common shares outstanding – diluted 49,428 49,432 49,400 49,429

GOODWILL (Tables)

GOODWILL (Tables)	6 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of changes in the carrying value of goodwill by reportable segment	Integrated Systems Precision Components Product Support Total Balance, March 31, 2017 $ 541,155 $ 532,418 $ 69,032 $ 1,142,605 Goodwill derecognized in connection with divestitures and assets held for sale (27,709 ) — — (27,709 ) Effect of exchange rate changes 6,383 3,681 (96 ) 9,968 Balance, September 30, 2017 $ 519,829 $ 536,099 $ 68,936 $ 1,124,864

PENSION AND OTHER POSTRETIREM29

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)	6 Months Ended
	Sep. 30, 2017
Pension Plan [Member]
Components of net periodic benefit costs:
Schedule of components of net periodic benefit cost and postretirement benefit plan	Pension benefits Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 Components of net periodic benefit costs: Service cost $ 1,124 $ 1,635 $ 2,244 $ 3,284 Interest cost 18,801 18,161 37,589 36,350 Expected return on plan assets (38,084 ) (39,002 ) (76,132 ) (78,059 ) Amortization of prior service credits (710 ) (445 ) (1,421 ) (891 ) Amortization of net loss 3,477 3,029 6,925 6,060 Settlement charge 523 — 523 — Net periodic benefit income $ (14,869 ) $ (16,622 ) $ (30,272 ) $ (33,256 )
Other postretirement
Components of net periodic benefit costs:
Schedule of components of net periodic benefit cost and postretirement benefit plan	Other postretirement benefits Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 Components of net periodic benefit costs: Service cost $ 102 $ 179 $ 203 $ 358 Interest cost 1,219 1,247 2,438 2,494 Amortization of prior service credits (2,328 ) (3,366 ) (4,656 ) (6,732 ) Amortization of gain (1,775 ) (1,647 ) (3,549 ) (3,294 ) Net periodic benefit income $ (2,782 ) $ (3,587 ) $ (5,564 ) $ (7,174 )

STOCKHOLDERS' EQUITY STOCKHOL30

STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Comprehensive Income (Loss) Note [Text Block]	Changes in accumulated other comprehensive income (loss) ("AOCI") by component for the three and six months ended September 30, 2017 and 2016 , respectively, were as follows: Currency Translation Adjustment Unrealized Gains and Losses on Derivative Instruments Defined Benefit Pension Plans and Other Postretirement Benefits Total (1) Balance June 30, 2017 $ (75,791 ) $ 2,336 $ (312,466 ) $ (385,921 ) AOCI before reclassifications 9,905 (561 ) 523 9,867 Amounts reclassified from AOCI — (2,021 ) (1,347 ) (2 ) (3,368 ) Net current period AOCI 9,905 (2,582 ) (824 ) 6,499 Balance September 30, 2017 $ (65,886 ) $ (246 ) $ (313,290 ) $ (379,422 ) Balance June 30, 2016 $ (73,613 ) $ (3,486 ) $ (286,998 ) $ (364,097 ) AOCI before reclassifications (6,821 ) 928 — (5,893 ) Amounts reclassified from AOCI — 1 (1,574 ) (2 ) (1,573 ) Net current period AOCI (6,821 ) 929 (1,574 ) (7,466 ) Balance September 30, 2016 $ (80,434 ) $ (2,557 ) $ (288,572 ) $ (371,563 ) Balance March 31, 2017 $ (87,212 ) $ 2,153 $ (311,119 ) $ (396,178 ) AOCI before reclassifications 21,326 (19 ) 523 21,830 Amounts reclassified from AOCI — (2,380 ) (2,694 ) (2 ) (5,074 ) Net current period AOCI 21,326 (2,399 ) (2,171 ) 16,756 Balance September 30, 2017 $ (65,886 ) $ (246 ) $ (313,290 ) $ (379,422 ) Balance March 31, 2016 $ (58,816 ) $ (2,920 ) $ (285,426 ) $ (347,162 ) AOCI before reclassifications (21,618 ) 373 — (21,245 ) Amounts reclassified from AOCI — (10 ) (3,146 ) (2 ) (3,156 ) Net current period AOCI (21,618 ) 363 (3,146 ) (24,401 ) Balance September 30, 2016 $ (80,434 ) $ (2,557 ) $ (288,572 ) $ (371,563 )

SEGMENTS (Tables)

SEGMENTS (Tables)	6 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Schedule of selected financial information for each reportable segment and the reconciliation of EBITDA to operating income	Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 Net sales: Integrated Systems $ 233,765 $ 245,367 $ 471,900 $ 502,723 Aerospace Structures 249,284 320,283 525,260 651,879 Precision Components 229,156 259,458 466,026 514,060 Product Support 68,366 85,826 134,799 170,025 Elimination of inter-segment sales (35,415 ) (36,165 ) (71,140 ) (70,665 ) $ 745,156 $ 874,769 $ 1,526,845 $ 1,768,022 Three Months Ended September 30, Six Months Ended September 30, 2017 2016 2017 2016 (Loss) income before income taxes: Operating income (expense): Integrated Systems $ 42,087 $ 45,797 $ 89,504 $ 93,783 Aerospace Structures 11,513 24,867 11,231 34,031 Precision Components (1,611 ) 12,063 (4,875 ) 4,281 Product Support 11,233 14,265 19,670 28,324 Corporate (44,374 ) (26,506 ) (78,273 ) (43,207 ) 18,848 70,486 37,257 117,212 Interest expense and other 25,375 17,896 46,393 36,023 $ (6,527 ) $ 52,590 $ (9,136 ) $ 81,189 Depreciation and amortization: Integrated Systems $ 9,588 $ 10,157 $ 19,539 $ 20,461 Aerospace Structures 19,046 18,385 38,437 36,347 Precision Components 10,259 14,016 18,008 28,345 Product Support 1,667 2,452 3,405 4,936 Corporate 308 276 610 659 $ 40,868 $ 45,286 $ 79,999 $ 90,748 Amortization of acquired contract liabilities, net: Integrated Systems $ 9,299 $ 9,136 $ 16,602 $ 19,473 Aerospace Structures 17,670 20,647 38,963 39,085 Precision Components 929 694 1,806 1,267 $ 27,898 $ 30,477 $ 57,371 $ 59,825 Adjusted EBITDA: Integrated Systems $ 42,376 $ 46,818 $ 92,441 $ 94,771 Aerospace Structures 12,889 22,605 10,705 31,293 Precision Components 7,719 25,385 11,327 31,359 Product Support 12,900 16,717 23,075 33,260 Corporate (23,172 ) (21,456 ) (56,769 ) (37,774 ) $ 52,712 $ 90,069 $ 80,779 $ 152,909 Capital expenditures: Integrated Systems $ 1,455 $ 2,595 $ 4,020 $ 5,823 Aerospace Structures 2,702 3,759 7,119 7,592 Precision Components 5,094 3,503 9,156 8,405 Product Support 769 703 1,030 1,333 Corporate 670 684 1,450 814 $ 10,690 $ 11,244 $ 22,775 $ 23,967
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	September 30, 2017 March 31, 2017 Total Assets: Integrated Systems $ 1,217,998 $ 1,281,828 Aerospace Structures 1,503,886 1,548,239 Precision Components 1,254,729 1,262,691 Product Support 278,346 284,231 Corporate 26,987 37,611 $ 4,281,946 $ 4,414,600

SELECTED CONSOLIDATING FINANC32

SELECTED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS (Tables)	6 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Summary of consolidating balance sheets	September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Current assets: Cash and cash equivalents $ 654 $ 42 $ 32,973 $ — $ 33,669 Trade and other receivables, net — 80,970 249,164 — 330,134 Inventories — 1,254,772 113,943 — 1,368,715 Prepaid expenses and other 7,773 8,974 12,103 — 28,850 Total current assets 8,427 1,344,758 408,183 — 1,761,368 Property and equipment, net 10,309 635,234 123,341 — 768,884 Goodwill and other intangible assets, net — 1,470,637 187,857 — 1,658,494 Other, net 22,246 48,730 22,224 — 93,200 Intercompany investments and advances 2,280,189 81,541 75,874 (2,437,604 ) — Total assets $ 2,321,171 $ 3,580,900 $ 817,479 $ (2,437,604 ) $ 4,281,946 Current liabilities: Current portion of long-term debt $ 349 $ 22,534 $ — $ — $ 22,883 Accounts payable 5,769 341,091 41,361 — 388,221 Accrued expenses 53,079 430,313 45,396 — 528,788 Total current liabilities 59,197 793,938 86,757 — 939,892 Long-term debt, less current portion 1,274,818 45,512 88,800 — 1,409,130 Intercompany advances 118,656 1,987,567 387,680 (2,493,903 ) — Accrued pension and other postretirement benefits, noncurrent 3,177 546,034 — — 549,211 Deferred income taxes and other 9,478 479,510 38,880 — 527,868 Total stockholders’ equity 855,845 (271,661 ) 215,362 56,299 855,845 Total liabilities and stockholders’ equity $ 2,321,171 $ 3,580,900 $ 817,479 $ (2,437,604 ) $ 4,281,946 SUMMARY CONDENSED CONSOLIDATING BALANCE SHEETS: March 31, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Current assets: Cash and cash equivalents $ 19,942 $ 24,137 $ 25,554 $ — $ 69,633 Trade and other receivables, net 546 34,874 276,372 — 311,792 Inventories — 1,243,461 96,714 — 1,340,175 Prepaid expenses and other 7,763 11,678 10,623 — 30,064 Assets held for sale — 3,250 18,005 — 21,255 Total current assets 28,251 1,317,400 427,268 — 1,772,919 Property and equipment, net 8,315 673,153 123,562 — 805,030 Goodwill and other intangible assets, net — 1,560,050 174,919 — 1,734,969 Other, net 17,902 67,955 15,825 — 101,682 Intercompany investments and advances 2,057,534 81,541 77,090 (2,216,165 ) — Total assets $ 2,112,002 $ 3,700,099 $ 818,664 $ (2,216,165 ) $ 4,414,600 Current liabilities: Current portion of long-term debt $ 33,298 $ 14,432 $ 112,900 $ — $ 160,630 Accounts payable 17,291 426,646 37,306 — 481,243 Accrued expenses 53,829 578,457 42,093 — 674,379 Liabilities related to assets held for sale — — 18,008 — 18,008 Total current liabilities 104,418 1,019,535 210,307 — 1,334,260 Long-term debt, less current portion 974,693 60,977 — — 1,035,670 Intercompany advances 178,381 1,754,529 370,907 (2,303,817 ) — Accrued pension and other postretirement benefits, noncurrent 6,633 585,501 — — 592,134 Deferred income taxes and other 1,403 564,358 40,302 — 606,063 Total stockholders’ equity 846,474 (284,801 ) 197,148 87,652 846,473 Total liabilities and stockholders’ equity $ 2,112,002 $ 3,700,099 $ 818,664 $ (2,216,165 ) $ 4,414,600
Condensed consolidating statements of income	CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 676,026 $ 89,750 $ (20,620 ) $ 745,156 Operating costs and expenses: Cost of sales — 527,417 73,067 (20,620 ) 579,864 Selling, general and administrative 18,921 47,927 7,733 — 74,581 Depreciation and amortization 308 36,402 4,158 — 40,868 Restructuring 4,159 4,800 1,142 — 10,101 Loss on divestitures 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 44,282 616,546 86,100 (20,620 ) 726,308 Operating (loss) income (44,282 ) 59,480 3,650 — 18,848 Intercompany interest and charges (39,713 ) 37,726 1,987 — — Interest expense and other 22,364 2,606 405 — 25,375 (Loss) income before income taxes (26,933 ) 19,148 1,258 — (6,527 ) Income tax (benefit) expense (8,675 ) 9,936 (2,410 ) — (1,149 ) Net (loss) income (18,258 ) 9,212 3,668 — (5,378 ) Other comprehensive (loss) income (2,582 ) (824 ) 9,905 — 6,499 Total comprehensive (loss) income $ (20,840 ) $ 8,388 $ 13,573 $ — $ 1,121 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 798,537 $ 96,802 $ (20,570 ) $ 874,769 Operating costs and expenses: Cost of sales — 615,237 78,765 (20,570 ) 673,432 Selling, general and administrative 13,654 49,607 7,068 — 70,329 Depreciation and amortization 277 40,794 4,215 — 45,286 Restructuring 7,740 2,495 227 — 10,462 Loss on divestitures 4,774 — — — 4,774 26,445 708,133 90,275 (20,570 ) 804,283 Operating (loss) income (26,445 ) 90,404 6,527 — 70,486 Intercompany interest and charges (47,505 ) 45,269 2,236 — — Interest expense and other 17,737 2,487 (2,328 ) — 17,896 Income before income taxes 3,323 42,648 6,619 — 52,590 Income (benefit) tax expense (430 ) 16,828 1,385 — 17,783 Net income 3,753 25,820 5,234 — 34,807 Other comprehensive (income) loss 929 (1,574 ) (6,821 ) — (7,466 ) Total comprehensive income (loss) $ 4,682 $ 24,246 $ (1,587 ) $ — $ 27,341 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Six Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 1,391,100 $ 177,659 $ (41,914 ) $ 1,526,845 Operating costs and expenses: Cost of sales — 1,102,803 146,321 (41,914 ) 1,207,210 Selling, general and administrative 41,906 92,773 19,204 — 153,883 Depreciation and amortization 610 71,175 8,214 — 79,999 Restructuring 14,707 11,246 1,649 — 27,602 Loss on divestiture 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 78,117 1,277,997 175,388 (41,914 ) 1,489,588 Operating (loss) income (78,117 ) 113,103 2,271 — 37,257 Intercompany interest and charges (82,953 ) 78,746 4,207 — — Interest expense and other 39,404 5,386 1,603 — 46,393 (Loss) income before income taxes (34,568 ) 28,971 (3,539 ) — (9,136 ) Income tax (benefit) expense (15,748 ) 15,699 (1,778 ) — (1,827 ) Net (loss) income (18,820 ) 13,272 (1,761 ) — (7,309 ) Other comprehensive (loss) income (2,399 ) (2,171 ) 21,326 — 16,756 Total comprehensive (loss) income $ (21,219 ) $ 11,101 $ 19,565 $ — $ 9,447 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Six Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 1,615,964 $ 191,452 $ (39,394 ) $ 1,768,022 Operating costs and expenses: Cost of sales — 1,283,858 155,356 (39,394 ) 1,399,820 Selling, general and administrative 28,097 95,500 14,758 — 138,355 Depreciation and amortization 659 81,561 8,528 — 90,748 Restructuring 9,600 7,286 227 — 17,113 Loss on divestiture 4,774 — — — 4,774 43,130 1,468,205 178,869 (39,394 ) 1,650,810 Operating (loss) income (43,130 ) 147,759 12,583 — 117,212 Intercompany interest and charges (99,069 ) 94,442 4,627 — — Interest expense and other 35,118 4,765 (3,860 ) — 36,023 Income before income taxes 20,821 48,552 11,816 — 81,189 Income tax expense 1,619 22,117 2,912 — 26,648 Net income 19,202 26,435 8,904 — 54,541 Other comprehensive income (loss) 363 (3,146 ) (21,618 ) — (24,401 ) Total comprehensive income (loss) $ 19,565 $ 23,289 $ (12,714 ) $ — $ 30,140 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 676,026 $ 89,750 $ (20,620 ) $ 745,156 Operating costs and expenses: Cost of sales — 527,417 73,067 (20,620 ) 579,864 Selling, general and administrative 18,921 47,927 7,733 — 74,581 Depreciation and amortization 308 36,402 4,158 — 40,868 Restructuring 4,159 4,800 1,142 — 10,101 Loss on divestitures 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 44,282 616,546 86,100 (20,620 ) 726,308 Operating (loss) income (44,282 ) 59,480 3,650 — 18,848 Intercompany interest and charges (39,713 ) 37,726 1,987 — — Interest expense and other 22,364 2,606 405 — 25,375 (Loss) income before income taxes (26,933 ) 19,148 1,258 — (6,527 ) Income tax (benefit) expense (8,675 ) 9,936 (2,410 ) — (1,149 ) Net (loss) income (18,258 ) 9,212 3,668 — (5,378 ) Other comprehensive (loss) income (2,582 ) (824 ) 9,905 — 6,499 Total comprehensive (loss) income $ (20,840 ) $ 8,388 $ 13,573 $ — $ 1,121 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 798,537 $ 96,802 $ (20,570 ) $ 874,769 Operating costs and expenses: Cost of sales — 615,237 78,765 (20,570 ) 673,432 Selling, general and administrative 13,654 49,607 7,068 — 70,329 Depreciation and amortization 277 40,794 4,215 — 45,286 Restructuring 7,740 2,495 227 — 10,462 Loss on divestitures 4,774 — — — 4,774 26,445 708,133 90,275 (20,570 ) 804,283 Operating (loss) income (26,445 ) 90,404 6,527 — 70,486 Intercompany interest and charges (47,505 ) 45,269 2,236 — — Interest expense and other 17,737 2,487 (2,328 ) — 17,896 Income before income taxes 3,323 42,648 6,619 — 52,590 Income (benefit) tax expense (430 ) 16,828 1,385 — 17,783 Net income 3,753 25,820 5,234 — 34,807 Other comprehensive (income) loss 929 (1,574 ) (6,821 ) — (7,466 ) Total comprehensive income (loss) $ 4,682 $ 24,246 $ (1,587 ) $ — $ 27,341 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Six Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 1,391,100 $ 177,659 $ (41,914 ) $ 1,526,845 Operating costs and expenses: Cost of sales — 1,102,803 146,321 (41,914 ) 1,207,210 Selling, general and administrative 41,906 92,773 19,204 — 153,883 Depreciation and amortization 610 71,175 8,214 — 79,999 Restructuring 14,707 11,246 1,649 — 27,602 Loss on divestiture 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 78,117 1,277,997 175,388 (41,914 ) 1,489,588 Operating (loss) income (78,117 ) 113,103 2,271 — 37,257 Intercompany interest and charges (82,953 ) 78,746 4,207 — — Interest expense and other 39,404 5,386 1,603 — 46,393 (Loss) income before income taxes (34,568 ) 28,971 (3,539 ) — (9,136 ) Income tax (benefit) expense (15,748 ) 15,699 (1,778 ) — (1,827 ) Net (loss) income (18,820 ) 13,272 (1,761 ) — (7,309 ) Other comprehensive (loss) income (2,399 ) (2,171 ) 21,326 — 16,756 Total comprehensive (loss) income $ (21,219 ) $ 11,101 $ 19,565 $ — $ 9,447 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 676,026 $ 89,750 $ (20,620 ) $ 745,156 Operating costs and expenses: Cost of sales — 527,417 73,067 (20,620 ) 579,864 Selling, general and administrative 18,921 47,927 7,733 — 74,581 Depreciation and amortization 308 36,402 4,158 — 40,868 Restructuring 4,159 4,800 1,142 — 10,101 Loss on divestitures 20,371 — — — 20,371 Pension settlement charge 523 — — — 523 44,282 616,546 86,100 (20,620 ) 726,308 Operating (loss) income (44,282 ) 59,480 3,650 — 18,848 Intercompany interest and charges (39,713 ) 37,726 1,987 — — Interest expense and other 22,364 2,606 405 — 25,375 (Loss) income before income taxes (26,933 ) 19,148 1,258 — (6,527 ) Income tax (benefit) expense (8,675 ) 9,936 (2,410 ) — (1,149 ) Net (loss) income (18,258 ) 9,212 3,668 — (5,378 ) Other comprehensive (loss) income (2,582 ) (824 ) 9,905 — 6,499 Total comprehensive (loss) income $ (20,840 ) $ 8,388 $ 13,573 $ — $ 1,121 CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME: For the Three Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net sales $ — $ 798,537 $ 96,802 $ (20,570 ) $ 874,769 Operating costs and expenses: Cost of sales — 615,237 78,765 (20,570 ) 673,432 Selling, general and administrative 13,654 49,607 7,068 — 70,329 Depreciation and amortization 277 40,794 4,215 — 45,286 Restructuring 7,740 2,495 227 — 10,462 Loss on divestitures 4,774 — — — 4,774 26,445 708,133 90,275 (20,570 ) 804,283 Operating (loss) income (26,445 ) 90,404 6,527 — 70,486 Intercompany interest and charges (47,505 ) 45,269 2,236 — — Interest expense and other 17,737 2,487 (2,328 ) — 17,896 Income before income taxes 3,323 42,648 6,619 — 52,590 Income (benefit) tax expense (430 ) 16,828 1,385 — 17,783 Net income 3,753 25,820 5,234 — 34,807 Other comprehensive (income) loss 929 (1,574 ) (6,821 ) — (7,466 ) Total comprehensive income (loss) $ 4,682 $ 24,246 $ (1,587 ) $ — $ 27,341
Condensed consolidating statements of cash flows	CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS: For the Six Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net (loss) income $ (18,820 ) $ 13,272 $ (1,761 ) $ — $ (7,309 ) Adjustments to reconcile net income to net cash (used in) operating activities provided by (1,865 ) (317,020 ) 25,710 1,419 (291,756 ) Net cash (used in) provided by operating activities (20,685 ) (303,748 ) 23,949 1,419 (299,065 ) Capital expenditures (1,449 ) (19,215 ) (2,111 ) — (22,775 ) Proceeds from sale of assets — 67,633 249 — 67,882 Net cash (used in) provided by investing activities (1,449 ) 48,418 (1,862 ) — 45,107 Net increase in revolving credit facility 87,393 — — — 87,393 Proceeds on issuance of debt 500,000 — 10,800 — 510,800 Retirements and repayments of debt (314,485 ) (7,661 ) (34,900 ) — (357,046 ) Payments of deferred financing costs (17,120 ) — — — (17,120 ) Dividends paid (3,970 ) — — — (3,970 ) Repurchase of restricted shares for minimum tax obligation (334 ) — — — (334 ) Intercompany financing and advances (248,638 ) 238,896 11,161 (1,419 ) — Net cash provided by (used in)financing activities 2,846 231,235 (12,939 ) (1,419 ) 219,723 Effect of exchange rate changes on cash — — (1,729 ) — (1,729 ) Net change in cash and cash equivalents (19,288 ) (24,095 ) 7,419 — (35,964 ) Cash and cash equivalents at beginning of period 19,942 24,137 25,554 — 69,633 Cash and cash equivalents at end of period $ 654 $ 42 $ 32,973 $ — $ 33,669 For the Six Months Ended September 30, 2017 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net (loss) income $ (18,820 ) $ 13,272 $ (1,761 ) $ — $ (7,309 ) Adjustments to reconcile net income to net cash (used in) operating activities provided by (1,865 ) (317,020 ) 25,710 1,419 (291,756 ) Net cash (used in) provided by operating activities (20,685 ) (303,748 ) 23,949 1,419 (299,065 ) Capital expenditures (1,449 ) (19,215 ) (2,111 ) — (22,775 ) Proceeds from sale of assets — 67,633 249 — 67,882 Net cash (used in) provided by investing activities (1,449 ) 48,418 (1,862 ) — 45,107 Net increase in revolving credit facility 87,393 — — — 87,393 Proceeds on issuance of debt 500,000 — 10,800 — 510,800 Retirements and repayments of debt (314,485 ) (7,661 ) (34,900 ) — (357,046 ) Payments of deferred financing costs (17,120 ) — — — (17,120 ) Dividends paid (3,970 ) — — — (3,970 ) Repurchase of restricted shares for minimum tax obligation (334 ) — — — (334 ) Intercompany financing and advances (248,638 ) 238,896 11,161 (1,419 ) — Net cash provided by (used in)financing activities 2,846 231,235 (12,939 ) (1,419 ) 219,723 Effect of exchange rate changes on cash — — (1,729 ) — (1,729 ) Net change in cash and cash equivalents (19,288 ) (24,095 ) 7,419 — (35,964 ) Cash and cash equivalents at beginning of period 19,942 24,137 25,554 — 69,633 Cash and cash equivalents at end of period $ 654 $ 42 $ 32,973 $ — $ 33,669 CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS: For the Six Months Ended September 30, 2016 Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Total Net income $ 19,202 $ 26,435 $ 8,904 $ — $ 54,541 Adjustments to reconcile net income to net cash provided by (used in) operating activities 14,409 (219,316 ) 18,470 660 (185,777 ) Net cash provided by (used in) operating activities 33,611 (192,881 ) 27,374 660 (131,236 ) Capital expenditures (814 ) (17,154 ) (5,999 ) — (23,967 ) Proceeds from sale of assets — 9,143 901 — 10,044 Acquisitions, net of cash acquired — 9 — — 9 Net cash used in investing activities (814 ) (8,002 ) (5,098 ) — (13,914 ) Net increase in revolving credit facility 252,396 — — — 252,396 Proceeds on issuance of debt — — 12,700 — 12,700 Retirements and repayments of debt (14,206 ) (7,228 ) (52,400 ) — (73,834 ) Payments of deferred financing costs (11,079 ) — — — (11,079 ) Dividends paid (3,962 ) — — — (3,962 ) Repayment of government grant — (14,570 ) — — (14,570 ) Repurchase of restricted shares for minimum tax obligations (182 ) — — — (182 ) Intercompany financing and advances (256,657 ) 227,339 29,978 (660 ) — Net cash (used in) provided by financing activities (33,690 ) 205,541 (9,722 ) (660 ) 161,469 Effect of exchange rate changes on cash — — (1,088 ) — (1,088 ) Net change in cash and cash equivalents (893 ) 4,658 11,466 — 15,231 Cash and cash equivalents at beginning of period 1,544 201 19,239 — 20,984 Cash and cash equivalents at end of period $ 651 $ 4,859 $ 30,705 $ — $ 36,215

RESTRUCTURING COSTS Schedule of

RESTRUCTURING COSTS Schedule of Restructuring Expenses (Tables)	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table provides a summary of the Company's current aggregate cost estimates by major type of expense associated with the restructuring plans noted above: Type of expense: Total estimated amount expected to be incurred Termination benefits $ 21,000 Facility closure and other exit costs (1) 44,000 Contract termination costs 18,000 Accelerated depreciation charges (2) 37,000 Other (3) 89,000 $ 209,000
Restructuring and Related Costs [Table Text Block]	The restructuring charges recognized for the three and six months ended September 30, 2017 and 2016 , by type and by segment consisted of the following: For the Three Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 491 $ — $ — $ 491 Facility closure and other exit costs 70 2,098 2,388 — — 4,556 Other 129 — 766 — 4,159 5,054 Total Restructuring 199 2,098 3,645 — 4,159 10,101 Depreciation and amortization 981 — 314 — — 1,295 Total $ 1,180 $ 2,098 $ 3,959 $ — $ 4,159 $ 11,396 For the Three Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 445 $ 65 $ — $ 1,046 Facility closure and other exit costs — — — 35 — 35 Other — 960 612 68 7,741 9,381 Total Restructuring 286 1,210 1,057 168 7,741 10,462 Depreciation and amortization 47 — 3,549 144 — 3,740 Total $ 333 $ 1,210 $ 4,606 $ 312 $ 7,741 $ 14,202 For the Six Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 747 $ — $ — $ 747 Facility closure and other exit costs 70 3,504 4,286 — — 7,860 Other 744 — 2,783 760 14,708 18,995 Total Restructuring 814 3,504 7,816 760 14,708 27,602 Depreciation and amortization 1,527 — 629 — — 2,156 Total $ 2,341 $ 3,504 $ 8,445 $ 760 $ 14,708 $ 29,758 For the Six Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 472 $ 90 $ — $ 1,098 Facility closure and other exit costs — — 247 35 — 282 Other — 4,012 2,052 68 9,601 15,733 Total Restructuring 286 4,262 2,771 193 9,601 17,113 Depreciation and amortization 93 — 6,849 289 — 7,231 Total $ 379 $ 4,262 $ 9,620 $ 482 $ 9,601 $ 24,344	14. RESTRUCTURING COSTS During the fiscal year ended March 31, 2017, the Company committed to a restructuring of certain of its businesses as well as the consolidation of certain of its facilities ("2017 Restructuring Plan"). The Company expects to reduce its footprint by approximately 1.0 million square feet, to reduce head count by approximately 100 employees and to amend certain contracts. Over the next few fiscal years, the Company estimates that it will record aggregate pre-tax charges of $55,000 to $60,000 related to these programs, which represent employee termination benefits, contract termination costs, accelerated depreciation and facility closure and other exit costs, and will result in future cash outlays. During the fiscal year ended March 31, 2016, the Company committed to a restructuring of certain of its businesses as well as the consolidation of certain of its facilities ("2016 Restructuring Plan"). The Company expects to reduce its footprint by approximately 3.5 million square feet and to reduce head count by approximately 1,200 employees. Over the next few fiscal years, the Company estimates that it will record aggregate pre-tax charges of $140,000 to $150,000 related to these programs, which represent employee termination benefits, contract termination costs, accelerated depreciation and facility closure and other exit costs, and will result in future cash outlays. The following table provides a summary of the Company's current aggregate cost estimates by major type of expense associated with the restructuring plans noted above: Type of expense: Total estimated amount expected to be incurred Termination benefits $ 21,000 Facility closure and other exit costs (1) 44,000 Contract termination costs 18,000 Accelerated depreciation charges (2) 37,000 Other (3) 89,000 $ 209,000 (1) I ncludes costs to transfer product lines among facilities and outplacement and employee relocation costs. (2) Accelerated depreciation charges are recorded as part of Depreciation and amortization on the Consolidated Statement of Operations. (3) Consists of other costs directly related to the plan, including project management, legal, regulatory costs and other transformation related costs, such as costs to amend certain contracts. The restructuring charges recognized for the three and six months ended September 30, 2017 and 2016 , by type and by segment consisted of the following: For the Three Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 491 $ — $ — $ 491 Facility closure and other exit costs 70 2,098 2,388 — — 4,556 Other 129 — 766 — 4,159 5,054 Total Restructuring 199 2,098 3,645 — 4,159 10,101 Depreciation and amortization 981 — 314 — — 1,295 Total $ 1,180 $ 2,098 $ 3,959 $ — $ 4,159 $ 11,396 For the Three Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 445 $ 65 $ — $ 1,046 Facility closure and other exit costs — — — 35 — 35 Other — 960 612 68 7,741 9,381 Total Restructuring 286 1,210 1,057 168 7,741 10,462 Depreciation and amortization 47 — 3,549 144 — 3,740 Total $ 333 $ 1,210 $ 4,606 $ 312 $ 7,741 $ 14,202 For the Six Months Ended September 30, 2017 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ — $ — $ 747 $ — $ — $ 747 Facility closure and other exit costs 70 3,504 4,286 — — 7,860 Other 744 — 2,783 760 14,708 18,995 Total Restructuring 814 3,504 7,816 760 14,708 27,602 Depreciation and amortization 1,527 — 629 — — 2,156 Total $ 2,341 $ 3,504 $ 8,445 $ 760 $ 14,708 $ 29,758 For the Six Months Ended September 30, 2016 Integrated Systems Aerospace Structures Precision Components Product Support Corporate Total Termination benefits $ 286 $ 250 $ 472 $ 90 $ — $ 1,098 Facility closure and other exit costs — — 247 35 — 282 Other — 4,012 2,052 68 9,601 15,733 Total Restructuring 286 4,262 2,771 193 9,601 17,113 Depreciation and amortization 93 — 6,849 289 — 7,231 Total $ 379 $ 4,262 $ 9,620 $ 482 $ 9,601 $ 24,344 Termination benefits include employee retention, severance and benefit payments for terminated employees. Facility closure costs include general operating costs incurred subsequent to production shutdown as well as equipment relocation and other associated costs. Contract termination costs include costs associated with terminating existing leases and supplier agreements. Other transformation costs include legal, outplacement and employee relocation costs, and other employee-related costs and costs to amend certain contracts.

BASIS OF PRESENTATION AND ORG34

BASIS OF PRESENTATION AND ORGANIZATION New Accounting Pronouncements (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2016USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	$ 67,000

SUMMARY OF SIGNIFICANT ACCOUN35

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2014	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Concentration of Credit Risk
Net sales	$ 745,156	$ 874,769		$ 1,526,845	$ 1,768,022
Stock-Based Compensation
Share-based Compensation	3,459	2,024		3,418	3,976
Integrated Systems [Member]
Concentration of Credit Risk
Net sales	233,765	245,367		471,900	502,723
Aerospace Structures [Member]
Concentration of Credit Risk
Net sales	249,284	320,283		525,260	651,879
Precision Components [Member]
Concentration of Credit Risk
Net sales	229,156	259,458		466,026	514,060
Product Support [Member]
Concentration of Credit Risk
Net sales	$ 68,366	$ 85,826		$ 134,799	$ 170,025
Net sales
Concentration of Credit Risk
Concentration Risk, Customer	.1
Boeing [Member] | Accounts Receivable [Member] | Credit Concentration Risk [Member]
Concentration of Credit Risk
Concentration of Risk, Accounts Receivable, Major Customer	15.00%			15.00%		5.00%
Boeing [Member] | Net sales | Product Support [Member]
Concentration of Credit Risk
Net sales				$ 4,209
Boeing [Member] | Net sales | Credit Concentration Risk [Member]
Concentration of Credit Risk
Concentration Risk, Percentage				33.00%	37.00%
Net sales			$ 657,901	$ 507,330
Boeing [Member] | Net sales | Credit Concentration Risk [Member] | Integrated Systems [Member]
Concentration of Credit Risk
Net sales				105,304	$ 106,838
Boeing [Member] | Net sales | Credit Concentration Risk [Member] | Aerospace Structures [Member]
Concentration of Credit Risk
Net sales				201,865	311,658
Boeing [Member] | Net sales | Credit Concentration Risk [Member] | Precision Components [Member]
Concentration of Credit Risk
Net sales				$ 195,952	223,256
Boeing [Member] | Net sales | Credit Concentration Risk [Member] | Product Support [Member]
Concentration of Credit Risk
Net sales					16,149
Gulfstream [Member] | Accounts Receivable [Member] | Credit Concentration Risk [Member]
Concentration of Credit Risk
Concentration of Risk, Accounts Receivable, Major Customer	12.00%			12.00%		3.00%
Gulfstream [Member] | Net sales | Product Support [Member]
Concentration of Credit Risk
Net sales				$ 197	$ 102
Gulfstream [Member] | Net sales | Credit Concentration Risk [Member]
Concentration of Credit Risk
Concentration Risk, Percentage				13.00%	12.00%
Net sales				$ 198,525	$ 216,651
Gulfstream [Member] | Net sales | Credit Concentration Risk [Member] | Integrated Systems [Member]
Concentration of Credit Risk
Net sales				654	1,083
Gulfstream [Member] | Net sales | Credit Concentration Risk [Member] | Aerospace Structures [Member]
Concentration of Credit Risk
Net sales				191,799	209,684
Gulfstream [Member] | Net sales | Credit Concentration Risk [Member] | Precision Components [Member]
Concentration of Credit Risk
Net sales				$ 5,875	$ 5,782

Intangibles (Details 3)

Intangibles (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Intangible Assets
Amortization of Acquired Contract Liabilities	$ 27,898	$ 30,477	$ 57,371	$ 59,825
Accumulated Amortization	(294,869)		(294,869)		$ (290,904)
Total intangibles, gross	828,499		828,499		883,268
Total intangibles, net	533,630		533,630		592,364
Amortization expense	14,550	$ 13,586	$ 29,375	$ 27,217
Customer relationships
Intangible Assets
Weighted-Average Life (in years)			17 years 1 month	16 years 7 months
Gross Carrying Amount	620,783		$ 620,783		663,165
Accumulated Amortization	(237,521)		(237,521)		(241,124)
Finite-lived intangible assets, net	383,262		$ 383,262		422,041
Product rights and licenses
Intangible Assets
Weighted-Average Life (in years)			11 years 5 months	11 years 5 months
Gross Carrying Amount	54,960		$ 54,960		54,347
Accumulated Amortization	(40,661)		(40,661)		(39,486)
Finite-lived intangible assets, net	14,299		$ 14,299		14,861
Non-compete agreements and other
Intangible Assets
Weighted-Average Life (in years)			16 years 3 months	16 years 4 months
Gross Carrying Amount	2,756		$ 2,756		2,756
Accumulated Amortization	(876)		(876)		(786)
Finite-lived intangible assets, net	1,880		$ 1,880		1,970
Tradename
Intangible Assets
Weighted-Average Life (in years)			10 years	10 years 4 months
Gross Carrying Amount	150,000		$ 150,000		163,000
Accumulated Amortization	(15,811)		(15,811)		(9,508)
Finite-lived intangible assets, net	$ 134,189		$ 134,189		$ 153,492

Supplemental Cash Flow Informat

Supplemental Cash Flow Information (Details 4) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Income taxes paid, net of refunds received	$ 5,133	$ 2,169
Cash paid for interest	31,507	34,514
Capital Lease Obligations Incurred	$ 1,153	$ 11,427

SUMMARY OF SIGNIFICANT ACCOUN38

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Changes in Accounting Estimates (Details 5) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Change in Accounting Estimate [Line Items]
Amortization of Acquired Contract Liabilities	$ 27,898	$ 30,477	$ 57,371	$ 59,825
Comprehensive Income [Member]
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate	8,416		7,916	(20,716)
Income, net [Member]
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate	6,733		6,333	(13,917)
Diluted earings per share [Member]
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate	$ 0		$ 0	$ 0

SUMMARY OF SIGNIFICANT ACCOUN39

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Product Warranty (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2017	Mar. 31, 2017
Product Warranties [Abstract]
Standard Product Warranty Description	3
Extended Product Warranty Description	20
Product Warranty Accrual	$ 81,552	$ 107,088

SUMMARY OF SIGNIFICANT ACCOUN40

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Share Repurchase (Details)	Sep. 30, 2017shares
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	2,277,789

SUMMARY OF SIGNIFICANT ACCOUN41

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Share Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation	$ 3,459	$ 2,024	$ 3,418	$ 3,976

SUMMARY OF SIGNIFICANT ACCOUN42

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES CORRECTION OF ERROR (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Jun. 30, 2016
Cost of Sales [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount	$ 24,500	$ 11,800
Income, net [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount		8,142
Retained Earnings [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount		$ 12,700

ACQUISITIONS (Details)

ACQUISITIONS (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Acquisitions
Goodwill	$ 1,124,864	$ 1,142,605

DISCONTINUED OPERATIONS AND ASS

DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Discontinued operations and assets held for sale
Gain (Loss) on Disposition of Business	$ (20,371)	$ 4,774	$ (20,371)	$ 4,774
Proceeds from Divestiture of Businesses	64,986				$ 9,000
Embee [Member]
Discontinued operations and assets held for sale
Gain (Loss) on Disposition of Business	$ 17,857
TAS - Newport News [Member]
Discontinued operations and assets held for sale
Gain (Loss) on Disposition of Business					4,774
Engines and APU [Member]
Discontinued operations and assets held for sale
Gain (Loss) on Disposition of Business					$ 14,263

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Inventory [Line Items]
Raw materials	$ 83,511	$ 89,069
Work-in-process	1,547,690	1,297,989
Finished goods	109,931	118,265
Rotable Assets	56,768	57,337
Less: unliquidated progress payments	(429,185)	(222,485)
Total inventories	1,368,715	1,340,175
Bombardier [Member]
Inventory [Line Items]
Total inventories	469,161	279,341
Inventory, Work in Process and Raw Materials	195,157	89,650
Preproduction Costs Related to Long-term Supply Arrangements, Costs Capitalized	648,804	589,449
Provision for Loss on Contracts	(374,800)	(399,758)
Total Bombardier & Embraer [Member]
Inventory [Line Items]
Total inventories	672,386	461,697
Inventory, Work in Process and Raw Materials	224,707	104,637
Preproduction Costs Related to Long-term Supply Arrangements, Costs Capitalized	827,066	762,618
Provision for Loss on Contracts	(379,387)	(405,558)
Embraer [Member]
Inventory [Line Items]
Total inventories	203,225	182,356
Inventory, Work in Process and Raw Materials	29,550	14,987
Preproduction Costs Related to Long-term Supply Arrangements, Costs Capitalized	178,262	173,169
Provision for Loss on Contracts	$ (4,587)	$ (5,800)

LONG-TERM DEBT, BY TYPE (Detail

LONG-TERM DEBT, BY TYPE (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Mar. 31, 2017
Long-term debt
Unamortized Debt Issuance Expense	$ (18,638)	$ (18,638)			$ (11,752)
Long-term debt	1,432,013	1,432,013			1,196,300
Less current portion	22,883	22,883			160,630
Long-term debt, less current portion	1,409,130	1,409,130			1,035,670
Payments of Financing Costs		17,120	$ 11,079
Revolving credit facility
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	800,000	800,000		$ 850,000	1,000,000
Long-term debt	117,393	117,393			29,999
Payments of Financing Costs		633
Term loan credit agreement
Long-term debt
Long-term debt	0	0			309,375
Asset-backed Securities [Member]
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	125,000	125,000		$ 225,000	175,000
Long-term debt	88,800	88,800			112,900
Capital Lease Obligations [Member]
Long-term debt
Long-term debt	61,480	61,480			72,800
Senior notes due 2021 [Member]
Long-term debt
Long-term debt	$ 375,000	375,000			$ 375,000
Debt Instrument, Interest Rate, Effective Percentage					4.875%
Debt Instrument, Face Amount					$ 375,000
Debt Instrument, Interest Rate, Stated Percentage					4.875%
Proceeds from Debt Instrument Percentage of Original Principal	100.00%
Senior Notes Due 2022 [Member]
Long-term debt
Long-term debt	$ 300,000	300,000			$ 300,000
Debt Instrument, Interest Rate, Effective Percentage					5.25%
Debt Instrument, Face Amount					$ 300,000
Debt Instrument, Interest Rate, Stated Percentage					5.25%
Proceeds from Debt Instrument Percentage of Original Principal	100.00%
Senior Notes Due 2025 [Member]
Long-term debt
Long-term debt	$ 500,000	$ 500,000			$ 0
Debt Instrument, Interest Rate, Stated Percentage	7.75%	7.75%
Payments of Financing Costs	$ 8,779
Notes Payable, Other Payables [Member]
Long-term debt
Long-term debt	$ 7,978	$ 7,978			$ 7,978

LONG-TERM DEBT (Details 2)

LONG-TERM DEBT (Details 2) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Mar. 31, 2017	Mar. 31, 2015
Long-term debt
Payments of Financing Costs		$ 17,120	$ 11,079
Outstanding borrowing amount	$ 1,432,013	1,432,013			$ 1,196,300
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized	$ 0	0			78,006
Senior Notes Due 2025 [Member]
Long-term debt
Debt Instrument, Repurchase Obligation Due to Change of Control, Percentage of Original Principal	100.00%
Payments of Financing Costs	$ 8,779
Outstanding borrowing amount	500,000	500,000			0
Receivables Purchase Agreement [Member]
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	90,000	90,000
Term loan credit agreement
Long-term debt
Outstanding borrowing amount	0	0			309,375
Revolving credit facility
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	800,000	800,000		$ 850,000	1,000,000
Payments of Financing Costs		$ 633
Unamortized financing costs prior to amendment						$ 13,226
Debt Instrument, Description of Variable Rate Basis		LIBOR
Outstanding borrowing amount	117,393	$ 117,393			29,999
Letters of Credit Outstanding, Amount	30,302	30,302			27,240
Borrowing capacity under revolving credit facility after reductions for borrowings and letters of credit outstanding	652,305	652,305
Asset-backed Securities [Member]
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	125,000	125,000		$ 225,000	175,000
Outstanding borrowing amount	$ 88,800	88,800			112,900
Program fee on the amount outstanding (as a percent)	0.40%
Line of Credit Facility, Commitment Fee Percentage	0.40%
Percentage of line of credit on which commitment fees are charged (as a percent)	100.00%
Capital Lease Obligations [Member]
Long-term debt
Outstanding borrowing amount	$ 61,480	61,480			72,800
Senior notes due 2021 [Member]
Long-term debt
Debt instrument principal amount					375,000
Outstanding borrowing amount	375,000	375,000			375,000
Notes Payable, Other Payables [Member]
Long-term debt
Outstanding borrowing amount	$ 7,978	$ 7,978			$ 7,978
Minimum [Member] | Receivables Purchase Agreement [Member]
Long-term debt
Program fee on the amount outstanding (as a percent)		0.65%
Minimum [Member] | Revolving credit facility
Long-term debt
Debt Instrument, Basis Spread on Variable Rate	1.50%
Maximum [Member] | Receivables Purchase Agreement [Member]
Long-term debt
Program fee on the amount outstanding (as a percent)		0.70%
Maximum [Member] | Revolving credit facility
Long-term debt
Debt Instrument, Basis Spread on Variable Rate	3.50%
Commitment fees (as a percent)	0.50%

LONG-TERM DEBT (Details 3)

LONG-TERM DEBT (Details 3) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Mar. 31, 2017	Mar. 31, 2015
Long-term debt
Payments of Financing Costs		$ 17,120	$ 11,079
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized	$ 0	0			$ 78,006
Long-term debt	1,432,013	1,432,013			1,196,300
Revolving credit facility
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	800,000	$ 800,000		$ 850,000	1,000,000
Debt Instrument, Description of Variable Rate Basis		LIBOR
Payments of Financing Costs		$ 633
Deferred Finance Costs, Noncurrent, Net						$ 13,226
Letters of Credit Outstanding, Amount	30,302	30,302			27,240
Line of Credit Facility, Remaining Borrowing Capacity	652,305	652,305
Long-term debt	117,393	117,393			29,999
Secured Debt [Member]
Long-term debt
Long-term debt	0	0			309,375
Asset-backed Securities [Member]
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	$ 125,000	125,000		$ 225,000	175,000
Line of Credit Facility, Commitment Fee Percentage	0.40%
Line of Credit, Commitment Fee on Maximum Amount Available, Percentage	100.00%
Line of Credit Facility, Amount Outstanding Commitment Fee, Percentage	0.40%
Long-term debt	$ 88,800	88,800			112,900
Equipment leasing facility and other capital leases
Long-term debt
Long-term debt	$ 61,480	61,480			72,800
Senior notes due 2021 [Member]
Long-term debt
Debt instrument principal amount					$ 375,000
Debt instrument interest rate stated percentage (as a percent)					4.875%
Proceeds from loan, percentage of principal (as a percent)	100.00%
Effective interest yield on principal amount (as a percent)					4.875%
Long-term debt	$ 375,000	375,000			$ 375,000
Senior Notes Due 2022 [Member]
Long-term debt
Debt instrument principal amount					$ 300,000
Debt instrument interest rate stated percentage (as a percent)					5.25%
Proceeds from loan, percentage of principal (as a percent)	100.00%
Effective interest yield on principal amount (as a percent)					5.25%
Long-term debt	$ 300,000	$ 300,000			$ 300,000
Senior Notes Due 2025 [Member]
Long-term debt
Debt instrument interest rate stated percentage (as a percent)	7.75%	7.75%
Payments of Financing Costs	$ 8,779
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	35.00%
Debt Instrument, Redemption Price, Percentage	107.80%
Debt Instrument, Repurchase Obligation Due to Change of Control, Percentage of Original Principal	100.00%
Debt Instrument, Repurchase Obligation Due to Certain Asset Sales Percentage of Original Principal	100.00%
Long-term debt	$ 500,000	$ 500,000			0
Notes Payable, Other Payables [Member]
Long-term debt
Long-term debt	7,978	7,978			7,978
Receivables Purchase Agreement [Member]
Long-term debt
Line of Credit Facility, Maximum Borrowing Capacity	90,000	90,000
Estimate of Fair Value Measurement [Member]
Long-term debt
Long-term debt	1,466,578	1,466,578			1,178,968
Reported Value Measurement [Member]
Long-term debt
Long-term debt	$ 1,432,013	$ 1,432,013			$ 1,196,300
Minimum [Member] | Revolving credit facility
Long-term debt
Debt Instrument, Basis Spread on Variable Rate	1.50%
Minimum [Member] | Receivables Purchase Agreement [Member]
Long-term debt
Line of Credit Facility, Amount Outstanding Commitment Fee, Percentage		0.65%
Maximum [Member] | Revolving credit facility
Long-term debt
Debt Instrument, Basis Spread on Variable Rate	3.50%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.50%
Maximum [Member] | Receivables Purchase Agreement [Member]
Long-term debt
Line of Credit Facility, Amount Outstanding Commitment Fee, Percentage		0.70%

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average common shares outstanding-basic (in shares)	49,428	49,304	49,400	49,281
Net effect of dilutive stock options (in shares)	0	128	0	148
Weighted average common shares outstanding - diluted (in shares)	49,428	49,432	49,400	49,429

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Income Tax Provision [Line Items]
Income Tax Examination, Description			one
Total accrued income tax related interest and penalties	$ 304		$ 304		$ 282
Total amount of unrecognized tax benefits	10,875		10,875		10,266
Amount of unrecognized tax benefits that would impact the effective tax rate, if recognized	$ 10,875	$ 1,466	$ 10,875	$ 1,466	$ 10,266
Effective income tax rate (as a percent)	20.00%	30.00%	20.00%	30.00%

GOODWILL (Details)

GOODWILL (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2017USD ($)
Goodwill
Goodwill, Written off Related to Sale of Business Unit	$ 27,709
Changes in the carrying value of goodwill
Balance at the beginning of the period	1,142,605
Effect of exchange rate changes and other	9,968
Balance at the end of the period	1,124,864
Integrated Systems [Member]
Goodwill
Goodwill, Written off Related to Sale of Business Unit	27,709
Changes in the carrying value of goodwill
Balance at the beginning of the period	541,155
Effect of exchange rate changes and other	6,383
Balance at the end of the period	519,829
Precision Components [Member]
Goodwill
Goodwill, Written off Related to Sale of Business Unit	0
Changes in the carrying value of goodwill
Balance at the beginning of the period	532,418
Effect of exchange rate changes and other	3,681
Balance at the end of the period	536,099
Product Support [Member]
Goodwill
Goodwill, Written off Related to Sale of Business Unit	0
Changes in the carrying value of goodwill
Balance at the beginning of the period	69,032
Effect of exchange rate changes and other	(96)
Balance at the end of the period	$ 68,936

PENSION AND OTHER POSTRETIREM52

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Components of net periodic benefit costs:
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	$ (523)	$ 0	$ (523)	$ 0
Pension Plan [Member]
Components of net periodic benefit costs:
Service cost	1,124	1,635	2,244	3,284
Interest cost	18,801	18,161	37,589	36,350
Expected return on plan assets	(38,084)	(39,002)	(76,132)	(78,059)
Amortization of prior service costs	(710)	(445)	(1,421)	(891)
Defined Benefit Plan, Amortization of Gains (Losses)	3,477	3,029	6,925	6,060
Net periodic benefit cost	(14,869)	(16,622)	(30,272)	(33,256)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	(523)	0	(523)	0
Other postretirement
Components of net periodic benefit costs:
Service cost	102	179	203	358
Interest cost	1,219	1,247	2,438	2,494
Amortization of prior service costs	(2,328)	(3,366)	(4,656)	(6,732)
Defined Benefit Plan, Amortization of Gains (Losses)	(1,775)	(1,647)	(3,549)	(3,294)
Net periodic benefit cost	$ (2,782)	$ (3,587)	$ (5,564)	$ (7,174)

STOCKHOLDERS' EQUITY STOCKHOL53

STOCKHOLDERS' EQUITY STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss	$ (379,422)	$ (371,563)	$ (379,422)	$ (371,563)	$ (385,921)	$ (396,178)	$ (364,097)	$ (347,162)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	9,905	(6,821)	21,326	(21,618)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(561)	928	(19)	373
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	9,867	(5,893)	21,830	(21,245)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(2,021)	1	(2,380)	(10)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3,368	1,573	5,074	3,156
Other Comprehensive Income (Loss), Net of Tax	(6,499)	7,466	(16,756)	24,401
Accumulated Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), before Tax	(65,886)	(80,434)	(65,886)	(80,434)	(75,791)	(87,212)	(73,613)	(58,816)
Other Comprehensive Income (Loss), Net of Tax	(9,905)	6,821	(21,326)	21,618
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss	(246)	(2,557)	(246)	(2,557)	2,336	2,153	(3,486)	(2,920)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(561)	928	(19)	373
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	2,021	(1)	(2,380)	(10)
Other Comprehensive Income (Loss), Net of Tax	2,582	(929)	2,399	(363)
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss	(313,290)	(288,572)	(313,290)	(288,572)	$ (312,466)	$ (311,119)	$ (286,998)	$ (285,426)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	523	0	523	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	1,347	1,574	2,694	(3,146)
Other Comprehensive Income (Loss), Net of Tax	$ (824)	$ (1,574)	$ 2,171	$ (3,146)

STOCKHOLDERS' EQUITY SHARE BASE

STOCKHOLDERS' EQUITY SHARE BASE COMPENSATION (Details) - $ / shares	6 Months Ended
	Sep. 30, 2016	Mar. 31, 2017
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	179,134
Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Shares, Period Increase (Decrease)	150,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price		$ 30.86
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years

SEGMENTS (Details)

SEGMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Costs and Expenses	$ 726,308	$ 804,283	$ 1,489,588	$ 1,650,810
Restructuring and Related Cost, Incurred Cost	11,396	14,202	29,758	24,344
Gain (Loss) on Disposition of Business	(20,371)	4,774	(20,371)	4,774
Net sales	745,156	874,769	1,526,845	1,768,022
Operating Income (Loss)	18,848	70,486	37,257	117,212
Interest expense and other	25,375	17,896	46,393	36,023
Income from continuing operations before income taxes	(6,527)	52,590	(9,136)	81,189
Depreciation and amortization	40,868	45,286	79,999	90,748
Amortization of Acquired Contract Liabilities	27,898	30,477	57,371	59,825
EBITDA	52,712	90,069	80,779	152,909
Capital expenditures	10,690	11,244	22,775	23,967
Total assets	4,281,946		4,281,946		$ 4,414,600
Revenues	166,637	182,706	345,044	363,125
Corporate Segment [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	4,159	7,741	14,708	9,601
Integrated Systems [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	1,180	333	2,341	379
Net sales	233,765	245,367	471,900	502,723
Operating Income (Loss)	42,087	45,797	89,504	93,783
Depreciation and amortization	9,588	10,157	19,539	20,461
Amortization of Acquired Contract Liabilities	9,299	9,136	16,602	19,473
EBITDA	42,376	46,818	92,441	94,771
Capital expenditures	1,455	2,595	4,020	5,823
Total assets	1,217,998		1,217,998		1,281,828
Aerospace Structures [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	2,098	1,210	3,504	4,262
Net sales	249,284	320,283	525,260	651,879
Operating Income (Loss)	11,513	24,867	11,231	34,031
Depreciation and amortization	19,046	18,385	38,437	36,347
Amortization of Acquired Contract Liabilities	17,670	20,647	38,963	39,085
EBITDA	12,889	22,605	10,705	31,293
Capital expenditures	2,702	3,759	7,119	7,592
Total assets	1,503,886		1,503,886		1,548,239
Precision Components [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	3,959	4,606	8,445	9,620
Net sales	229,156	259,458	466,026	514,060
Operating Income (Loss)	(1,611)	12,063	(4,875)	4,281
Depreciation and amortization	10,259	14,016	18,008	28,345
Amortization of Acquired Contract Liabilities	929	694	1,806	1,267
EBITDA	7,719	25,385	11,327	31,359
Capital expenditures	5,094	3,503	9,156	8,405
Total assets	1,254,729		1,254,729		1,262,691
Product Support [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	0	312	760	482
Net sales	68,366	85,826	134,799	170,025
Operating Income (Loss)	11,233	14,265	19,670	28,324
Depreciation and amortization	1,667	2,452	3,405	4,936
EBITDA	12,900	16,717	23,075	33,260
Capital expenditures	769	703	1,030	1,333
Total assets	278,346		278,346		284,231
Elimination of inter-segment sales
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Net sales	(35,415)	(36,165)	(71,140)	(70,665)
Corporate
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Operating Income (Loss)	(44,374)	(26,506)	(78,273)	(43,207)
Depreciation and amortization	308	276	610	659
EBITDA	(23,172)	(21,456)	(56,769)	(37,774)
Capital expenditures	670	684	1,450	814
Total assets	26,987		26,987		37,611
Restructuring Charges [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	10,101	10,462	27,602	17,113
Restructuring Charges [Member] | Corporate Segment [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	4,159	7,741	14,708	9,601
Restructuring Charges [Member] | Integrated Systems [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	199	286	814	286
Restructuring Charges [Member] | Aerospace Structures [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	2,098	1,210	3,504	4,262
Restructuring Charges [Member] | Precision Components [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	3,645	1,057	7,816	2,771
Restructuring Charges [Member] | Product Support [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Restructuring and Related Cost, Incurred Cost	0	168	760	193
Guarantor Subsidiaries [Member]
Financial information of reportable segment and the reconciliation of EBITDA to operating income
Costs and Expenses	616,546	708,133	1,277,997	1,468,205
Gain (Loss) on Disposition of Business	0	0	0
Net sales	676,026	798,537	1,391,100	1,615,964
Operating Income (Loss)	59,480	90,404	113,103	147,759
Interest expense and other	2,606	2,487	5,386	4,765
Income from continuing operations before income taxes	19,148	42,648	28,971	48,552
Depreciation and amortization	36,402	$ 40,794	71,175	81,561
Capital expenditures			19,215	$ 17,154
Total assets	$ 3,580,900		$ 3,580,900		$ 3,700,099

SELECTED CONSOLIDATING FINANC56

SELECTED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016
Consolidating Financial Statements, Captions
Cash and cash equivalents	$ 33,669	$ 69,633	$ 36,215	$ 20,984
Trade and other receivables, net	330,134	311,792
Inventories	1,368,715	1,340,175
Prepaid and other current assets	28,850	30,064
Assets Held-for-sale, Not Part of Disposal Group		21,255
Total current assets	1,761,368	1,772,919
Property and equipment, net	768,884	805,030
Goodwill and other intangible assets, net	1,658,494	1,734,969
Other, net	93,200	101,682
Intercompany investments and advances	0	0
Total assets	4,281,946	4,414,600
Current liabilities:
Current portion of long-term debt	22,883	160,630
Accounts payable	388,221	481,243
Accrued expenses	528,788	674,379
Disposal Group, Including Discontinued Operation, Liabilities		18,008
Total current liabilities	939,892	1,334,260
Long-term debt, less current portion	1,409,130	1,035,670
Intercompany advances	0	0
Accrued pension and other postretirement benefits, noncurrent	549,211	592,134
Deferred income taxes and other	527,868	606,063
Total stockholders’ equity	855,845	846,473
Total liabilities and stockholders' equity	4,281,946	4,414,600
Consolidation, Eliminations [Member]
Consolidating Financial Statements, Captions
Cash and cash equivalents	0	0	0	0
Trade and other receivables, net	0	0
Inventories	0	0
Prepaid and other current assets	0	0
Assets Held-for-sale, Not Part of Disposal Group		0
Total current assets	0	0
Property and equipment, net	0	0
Goodwill and other intangible assets, net	0	0
Other, net	0	0
Intercompany investments and advances	(2,437,604)	(2,216,165)
Total assets	(2,437,604)	(2,216,165)
Current liabilities:
Current portion of long-term debt	0	0
Accounts payable	0	0
Accrued expenses	0	0
Disposal Group, Including Discontinued Operation, Liabilities		0
Total current liabilities	0	0
Long-term debt, less current portion	0	0
Intercompany advances	(2,493,903)	(2,303,817)
Accrued pension and other postretirement benefits, noncurrent	0	0
Deferred income taxes and other	0	0
Total stockholders’ equity	56,299	87,652
Total liabilities and stockholders' equity	(2,437,604)	(2,216,165)
Parent
Consolidating Financial Statements, Captions
Cash and cash equivalents	654	19,942	651	1,544
Trade and other receivables, net	0	546
Inventories	0	0
Prepaid and other current assets	7,773	7,763
Assets Held-for-sale, Not Part of Disposal Group		0
Total current assets	8,427	28,251
Property and equipment, net	10,309	8,315
Goodwill and other intangible assets, net	0	0
Other, net	22,246	17,902
Intercompany investments and advances	2,280,189	2,057,534
Total assets	2,321,171	2,112,002
Current liabilities:
Current portion of long-term debt	349	33,298
Accounts payable	5,769	17,291
Accrued expenses	53,079	53,829
Disposal Group, Including Discontinued Operation, Liabilities		0
Total current liabilities	59,197	104,418
Long-term debt, less current portion	1,274,818	974,693
Intercompany advances	118,656	178,381
Accrued pension and other postretirement benefits, noncurrent	3,177	6,633
Deferred income taxes and other	9,478	1,403
Total stockholders’ equity	855,845	846,474
Total liabilities and stockholders' equity	2,321,171	2,112,002
Guarantor Subsidiaries [Member]
Consolidating Financial Statements, Captions
Cash and cash equivalents	42	24,137	4,859	201
Trade and other receivables, net	80,970	34,874
Inventories	1,254,772	1,243,461
Prepaid and other current assets	8,974	11,678
Assets Held-for-sale, Not Part of Disposal Group		3,250
Total current assets	1,344,758	1,317,400
Property and equipment, net	635,234	673,153
Goodwill and other intangible assets, net	1,470,637	1,560,050
Other, net	48,730	67,955
Intercompany investments and advances	81,541	81,541
Total assets	3,580,900	3,700,099
Current liabilities:
Current portion of long-term debt	22,534	14,432
Accounts payable	341,091	426,646
Accrued expenses	430,313	578,457
Disposal Group, Including Discontinued Operation, Liabilities		0
Total current liabilities	793,938	1,019,535
Long-term debt, less current portion	45,512	60,977
Intercompany advances	1,987,567	1,754,529
Accrued pension and other postretirement benefits, noncurrent	546,034	585,501
Deferred income taxes and other	479,510	564,358
Total stockholders’ equity	(271,661)	(284,801)
Total liabilities and stockholders' equity	3,580,900	3,700,099
Non-Guarantor Subsidiaries
Consolidating Financial Statements, Captions
Cash and cash equivalents	32,973	25,554	$ 30,705	$ 19,239
Trade and other receivables, net	249,164	276,372
Inventories	113,943	96,714
Prepaid and other current assets	12,103	10,623
Assets Held-for-sale, Not Part of Disposal Group		18,005
Total current assets	408,183	427,268
Property and equipment, net	123,341	123,562
Goodwill and other intangible assets, net	187,857	174,919
Other, net	22,224	15,825
Intercompany investments and advances	75,874	77,090
Total assets	817,479	818,664
Current liabilities:
Current portion of long-term debt	0	112,900
Accounts payable	41,361	37,306
Accrued expenses	45,396	42,093
Disposal Group, Including Discontinued Operation, Liabilities		18,008
Total current liabilities	86,757	210,307
Long-term debt, less current portion	88,800	0
Intercompany advances	387,680	370,907
Accrued pension and other postretirement benefits, noncurrent	0	0
Deferred income taxes and other	38,880	40,302
Total stockholders’ equity	215,362	197,148
Total liabilities and stockholders' equity	$ 817,479	$ 818,664

SELECTED CONSOLIDATING FINANC57

SELECTED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Consolidating Financial Statements, Captions
Net sales	$ 745,156	$ 874,769	$ 1,526,845	$ 1,768,022
Cost of Goods and Services Sold	579,864	673,432	1,207,210	1,399,820
Selling, General and Administrative Expense	74,581	70,329	153,883	138,355
Depreciation and amortization	40,868	45,286	79,999	90,748
Restructuring Charges	10,101	10,462	27,602	17,113
Gain (Loss) on Disposition of Business	20,371	(4,774)	20,371	(4,774)
Costs and Expenses	726,308	804,283	1,489,588	1,650,810
Operating Income (Loss)	18,848	70,486	37,257	117,212
Intercompany Interest and Charges	0	0	0	0
Interest expense and other	25,375	17,896	46,393	36,023
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(6,527)	52,590	(9,136)	81,189
Income Tax Expense (Benefit)	(1,149)	17,783	(1,827)	26,648
Net Income (Loss) Attributable to Parent	(5,378)	34,807	(7,309)	54,541
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	6,499	(7,466)	16,756	(24,401)
Total comprehensive income	1,121	27,341	9,447	30,140
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	523	0	523	0
Gain (Loss) Related to Litigation Settlement				(4,774)
Consolidation, Eliminations [Member]
Consolidating Financial Statements, Captions
Net sales	(20,620)	(20,570)	(41,914)	(39,394)
Cost of Goods and Services Sold	(20,620)	(20,570)	(41,914)	(39,394)
Selling, General and Administrative Expense	0	0	0	0
Depreciation and amortization	0	0	0	0
Restructuring Charges	0	0	0	0
Gain (Loss) on Disposition of Business	0	0	0
Costs and Expenses	(20,620)	(20,570)	(41,914)	(39,394)
Operating Income (Loss)	0	0	0	0
Intercompany Interest and Charges	0	0	0	0
Interest expense and other	0	0	0	0
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	0	0	0	0
Income Tax Expense (Benefit)	0	0	0	0
Net Income (Loss) Attributable to Parent	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0	0	0	0
Total comprehensive income	0	0	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0		0
Gain (Loss) Related to Litigation Settlement				0
Parent
Consolidating Financial Statements, Captions
Net sales	0	0	0	0
Cost of Goods and Services Sold	0	0	0	0
Selling, General and Administrative Expense	18,921	13,654	41,906	28,097
Depreciation and amortization	308	277	610	659
Restructuring Charges	4,159	7,740	14,707	9,600
Gain (Loss) on Disposition of Business	(20,371)	(4,774)	(20,371)
Costs and Expenses	44,282	26,445	78,117	43,130
Operating Income (Loss)	(44,282)	(26,445)	(78,117)	(43,130)
Intercompany Interest and Charges	(39,713)	(47,505)	(82,953)	(99,069)
Interest expense and other	22,364	17,737	39,404	35,118
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(26,933)	3,323	(34,568)	20,821
Income Tax Expense (Benefit)	(8,675)	(430)	(15,748)	1,619
Net Income (Loss) Attributable to Parent	(18,258)	3,753	(18,820)	19,202
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2,582)	929	(2,399)	363
Total comprehensive income	(20,840)	4,682	(21,219)	19,565
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	523		(523)
Gain (Loss) Related to Litigation Settlement				4,774
Guarantor Subsidiaries [Member]
Consolidating Financial Statements, Captions
Net sales	676,026	798,537	1,391,100	1,615,964
Cost of Goods and Services Sold	527,417	615,237	1,102,803	1,283,858
Selling, General and Administrative Expense	47,927	49,607	92,773	95,500
Depreciation and amortization	36,402	40,794	71,175	81,561
Restructuring Charges	4,800	2,495	11,246	7,286
Gain (Loss) on Disposition of Business	0	0	0
Costs and Expenses	616,546	708,133	1,277,997	1,468,205
Operating Income (Loss)	59,480	90,404	113,103	147,759
Intercompany Interest and Charges	37,726	45,269	78,746	94,442
Interest expense and other	2,606	2,487	5,386	4,765
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	19,148	42,648	28,971	48,552
Income Tax Expense (Benefit)	9,936	16,828	15,699	22,117
Net Income (Loss) Attributable to Parent	9,212	25,820	13,272	26,435
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(824)	(1,574)	(2,171)	(3,146)
Total comprehensive income	8,388	24,246	11,101	23,289
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0		0
Gain (Loss) Related to Litigation Settlement				0
Non-Guarantor Subsidiaries
Consolidating Financial Statements, Captions
Net sales	89,750	96,802	177,659	191,452
Cost of Goods and Services Sold	73,067	78,765	146,321	155,356
Selling, General and Administrative Expense	7,733	7,068	19,204	14,758
Depreciation and amortization	4,158	4,215	8,214	8,528
Restructuring Charges	1,142	227	1,649	227
Gain (Loss) on Disposition of Business	0	0	0
Costs and Expenses	86,100	90,275	175,388	178,869
Operating Income (Loss)	3,650	6,527	2,271	12,583
Intercompany Interest and Charges	1,987	2,236	4,207	4,627
Interest expense and other	405	(2,328)	1,603	(3,860)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	1,258	6,619	(3,539)	11,816
Income Tax Expense (Benefit)	(2,410)	1,385	(1,778)	2,912
Net Income (Loss) Attributable to Parent	3,668	5,234	(1,761)	8,904
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	9,905	(6,821)	21,326	(21,618)
Total comprehensive income	13,573	(1,587)	19,565	(12,714)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0		0
Gain (Loss) Related to Litigation Settlement				0
Pension Plan [Member]
Consolidating Financial Statements, Captions
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	$ 523	$ 0	$ 523	$ 0

SELECTED CONSOLIDATING FINANC58

SELECTED CONSOLIDATING FINANCIAL STATEMENTS OF PARENT, GUARANTORS AND NON-GUARANTORS (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017	Mar. 31, 2016
Consolidating Financial Statements, Captions
Net Income (Loss) Attributable to Parent	$ (5,378)	$ 34,807	$ (7,309)	$ 54,541
Adjustments to reconcile net income to net cash provided by (used in) operating activities			(291,756)	(185,777)
Net cash provided by (used in) operating activities			(299,065)	(131,236)
Capital expenditures	(10,690)	(11,244)	(22,775)	(23,967)
Proceeds from sale of assets			67,882	10,044
Payments to Acquire Businesses, Net of Cash Acquired			0	9
Net cash used in investing activities			45,107	(13,914)
Net increase in revolving credit facility			(87,393)	(252,396)
Proceeds from issuance of long-term debt and capital leases			510,800	12,700
Retirements and repayments of debt			357,046	73,834
Payments of Financing Costs			17,120	11,079
Dividends paid			3,970	3,962
Repayments of government grant			0	(14,570)
Repurchase of restricted shares for minimum tax obligation			(334)	(182)
Intercompany financing and advances			0	0
Net cash (used in) provided by financing activities			219,723	161,469
Effect of exchange rate changes on cash			(1,729)	(1,088)
Net change in cash and cash equivalents			(35,964)	15,231
Cash and cash equivalents	33,669	36,215	33,669	36,215	$ 69,633	$ 20,984
Consolidation, Eliminations [Member]
Consolidating Financial Statements, Captions
Net Income (Loss) Attributable to Parent	0	0	0	0
Adjustments to reconcile net income to net cash provided by (used in) operating activities			1,419	660
Net cash provided by (used in) operating activities			1,419	660
Capital expenditures			0	0
Proceeds from sale of assets			0	0
Payments to Acquire Businesses, Net of Cash Acquired				0
Net cash used in investing activities			0	0
Net increase in revolving credit facility			0	0
Proceeds from issuance of long-term debt and capital leases			0	0
Retirements and repayments of debt			0	0
Payments of Financing Costs			0	0
Dividends paid			0	0
Repayments of government grant				0
Repurchase of restricted shares for minimum tax obligation			0	0
Intercompany financing and advances			(1,419)	(660)
Net cash (used in) provided by financing activities			(1,419)	(660)
Effect of exchange rate changes on cash			0	0
Net change in cash and cash equivalents			0	0
Cash and cash equivalents	0	0	0	0	0	0
Parent
Consolidating Financial Statements, Captions
Net Income (Loss) Attributable to Parent	(18,258)	3,753	(18,820)	19,202
Adjustments to reconcile net income to net cash provided by (used in) operating activities			(1,865)	14,409
Net cash provided by (used in) operating activities			(20,685)	33,611
Capital expenditures			(1,449)	(814)
Proceeds from sale of assets			0	0
Payments to Acquire Businesses, Net of Cash Acquired				0
Net cash used in investing activities			(1,449)	(814)
Net increase in revolving credit facility			(87,393)	(252,396)
Proceeds from issuance of long-term debt and capital leases			500,000	0
Retirements and repayments of debt			314,485	14,206
Payments of Financing Costs			17,120	11,079
Dividends paid			3,970	3,962
Repayments of government grant				0
Repurchase of restricted shares for minimum tax obligation			(334)	(182)
Intercompany financing and advances			(248,638)	(256,657)
Net cash (used in) provided by financing activities			2,846	(33,690)
Effect of exchange rate changes on cash			0	0
Net change in cash and cash equivalents			(19,288)	(893)
Cash and cash equivalents	654	651	654	651	19,942	1,544
Guarantor Subsidiaries [Member]
Consolidating Financial Statements, Captions
Net Income (Loss) Attributable to Parent	9,212	25,820	13,272	26,435
Adjustments to reconcile net income to net cash provided by (used in) operating activities			(317,020)	(219,316)
Net cash provided by (used in) operating activities			(303,748)	(192,881)
Capital expenditures			(19,215)	(17,154)
Proceeds from sale of assets			67,633	9,143
Payments to Acquire Businesses, Net of Cash Acquired				9
Net cash used in investing activities			48,418	(8,002)
Net increase in revolving credit facility			0	0
Proceeds from issuance of long-term debt and capital leases			0	0
Retirements and repayments of debt			7,661	7,228
Payments of Financing Costs			0	0
Dividends paid			0	0
Repayments of government grant				(14,570)
Repurchase of restricted shares for minimum tax obligation			0	0
Intercompany financing and advances			238,896	227,339
Net cash (used in) provided by financing activities			231,235	205,541
Effect of exchange rate changes on cash			0	0
Net change in cash and cash equivalents			(24,095)	4,658
Cash and cash equivalents	42	4,859	42	4,859	24,137	201
Non-Guarantor Subsidiaries
Consolidating Financial Statements, Captions
Net Income (Loss) Attributable to Parent	3,668	5,234	(1,761)	8,904
Adjustments to reconcile net income to net cash provided by (used in) operating activities			25,710	18,470
Net cash provided by (used in) operating activities			23,949	27,374
Capital expenditures			(2,111)	(5,999)
Proceeds from sale of assets			249	901
Payments to Acquire Businesses, Net of Cash Acquired				0
Net cash used in investing activities			(1,862)	(5,098)
Net increase in revolving credit facility			0	0
Proceeds from issuance of long-term debt and capital leases			10,800	12,700
Retirements and repayments of debt			34,900	52,400
Payments of Financing Costs			0	0
Dividends paid			0	0
Repayments of government grant				0
Repurchase of restricted shares for minimum tax obligation			0	0
Intercompany financing and advances			11,161	29,978
Net cash (used in) provided by financing activities			(12,939)	(9,722)
Effect of exchange rate changes on cash			(1,729)	(1,088)
Net change in cash and cash equivalents			7,419	11,466
Cash and cash equivalents	$ 32,973	$ 30,705	$ 32,973	$ 30,705	$ 25,554	$ 19,239

RESTRUCTURING COSTS RESTRUCTU59

RESTRUCTURING COSTS RESTRUCTURING COSTS (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 11,396	$ 14,202	$ 29,758	$ 24,344
Restructuring and Related Cost, Expected Cost	209,000		209,000
2017 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities, Reduction of Square Footage		1,000,000		1,000,000
Restructuring and Related Activities, Reduction to Workforce		100		100
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities, Reduction of Square Footage					4,000,000
Restructuring and Related Activities, Reduction to Workforce					1,200
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	491	$ 1,046	747	$ 1,098
Restructuring and Related Cost, Expected Cost	21,000		21,000
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	4,556	35	7,860	282
Restructuring and Related Cost, Expected Cost	44,000		44,000
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	18,000		18,000
Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	37,000		37,000
Accelerated Depreciation [Member] | Depreciation and Amortization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	1,295	3,740	2,156	7,231
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	5,054	9,381	18,995	15,733
Restructuring and Related Cost, Expected Cost	89,000		89,000
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	10,101	10,462	27,602	17,113
Integrated Systems [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	1,180	333	2,341	379
Integrated Systems [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	286	0	286
Integrated Systems [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	70	0	70	0
Integrated Systems [Member] | Accelerated Depreciation [Member] | Depreciation and Amortization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	981		1,527	93
Integrated Systems [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	129	0	744	0
Integrated Systems [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	199	286	814	286
Aerospace Structures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	2,098	1,210	3,504	4,262
Aerospace Structures [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	250	0	250
Aerospace Structures [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	2,098	0	3,504	0
Aerospace Structures [Member] | Accelerated Depreciation [Member] | Depreciation and Amortization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		0	0
Aerospace Structures [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	960	0	4,012
Aerospace Structures [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	2,098	1,210	3,504	4,262
Precision Components [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	3,959	4,606	8,445	9,620
Precision Components [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	491	445	747	472
Precision Components [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	2,388	0	4,286	247
Precision Components [Member] | Accelerated Depreciation [Member] | Depreciation and Amortization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	314		629	6,849
Precision Components [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	766	612	2,783	2,052
Precision Components [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	3,645	1,057	7,816	2,771
Product Support [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	312	760	482
Product Support [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	65	0	90
Product Support [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	35	0	35
Product Support [Member] | Accelerated Depreciation [Member] | Depreciation and Amortization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		0	289
Product Support [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	68	760	68
Product Support [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	168	760	193
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	4,159	7,741	14,708	9,601
Corporate Segment [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	0	0	0
Corporate Segment [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	0	0	0
Corporate Segment [Member] | Accelerated Depreciation [Member] | Depreciation and Amortization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		0	0
Corporate Segment [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		7,741		9,601
Corporate Segment [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	4,159	7,741	14,708	9,601
Minimum [Member] | 2017 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		55,000		55,000
Minimum [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	140,000		140,000
Maximum [Member] | 2017 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		$ 60,000		$ 60,000
Maximum [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 150,000		$ 150,000