Advanced Drainage Systems (WMS) 10-Q/A 29 Mar 16 2015 Q2 Quarterly report (amended) Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document And Entity Information [Abstract]
Document Type	10-Q/A
Amendment Flag	true
Amendment Description	Amendment discription not avalilable.
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Trading Symbol	WMS
Entity Registrant Name	ADVANCED DRAINAGE SYSTEMS, INC.
Entity Central Index Key	1,604,028
Current Fiscal Year End Date	--03-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		52,938,098

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Current assets:
Cash	[1]	$ 6,581	$ 3,931
Receivables (less allowance for doubtful accounts of $4,381 and $4,490, respectively)	[1]	246,046	148,271
Inventories	[1]	232,262	259,891
Deferred income taxes and other current assets	[1]	13,737	14,465
Total current assets	[1]	498,626	426,558
Property, plant and equipment, net	[1]	359,742	350,351
Other assets:
Goodwill	[1]	88,000	88,017
Intangible assets, net	[1]	54,132	59,194
Other assets	[1]	67,660	65,447
Total assets	[1]	1,068,160	989,567
Current liabilities:
Current maturities of debt obligations	[1]	11,148	11,153
Current maturities of capital lease obligations	[1]	12,225	12,364
Accounts payable	[1]	115,716	110,972
Other accrued liabilities	[1]	50,240	43,085
Accrued income taxes	[1]	19,698	7,980
Total current liabilities	[1]	209,027	185,554
Long-term debt obligation	[1]	386,435	442,895
Long-term capital lease obligations	[1]	49,237	34,366
Deferred tax liabilities	[1]	60,401	66,333
Other liabilities	[1]	27,319	32,170
Total liabilities	[1]	$ 732,419	$ 761,318
Commitments and contingencies (see Note 14)	[1]
Mezzanine equity:
Redeemable common stock: $0.01 par value; 0 and 38,320 shares issued and outstanding, respectively	[1]		$ 549,119
Redeemable convertible preferred stock: $0.01 par value; 47,070 shares authorized; 44,170 shares issued; 26,129 shares outstanding	[1]	$ 326,623	291,720
Deferred compensation - unearned ESOP shares	[1]	(215,024)	(197,888)
Total mezzanine equity	[1]	111,599	642,951
Stockholders' equity (deficit):
Common stock: $0.01 par value; 1,000,000 and 148,271 shares authorized; 153,560 and 109,951 shares issued; 52,935 and 9,141 shares outstanding, respectively	[1]	12,393	11,957
Paid-in capital	[1]	689,980	12,438
Common stock in treasury, at cost	[1]	(447,674)	(448,439)
Accumulated other comprehensive loss	[1]	(9,355)	(6,830)
Retained deficit	[1]	(40,900)	(2,412)
Total ADS stockholders' equity (deficit)	[1]	204,444	(433,286)
Noncontrolling interest in subsidiaries	[1]	19,698	18,584
Total stockholders' equity (deficit)	[1]	224,142	(414,702)
Total liabilities, mezzanine equity and stockholders' (deficit)	[1]	$ 1,068,160	$ 989,567
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Allowance for doubtful accounts	[1]	$ 4,381	$ 4,490
Common stock, par value	[1]	$ 0.01	$ 0.01
Common stock, shares authorized	[1]	1,000,000,000	148,271,000
Common stock, shares issued	[1]	153,560,000	109,951,000
Common stock, shares outstanding	[1]	52,935,000	9,141,000
Redeemable Common Stock [Member]
Mezzanine equity, par value	[1]	$ 0.01	$ 0.01
Mezzanine equity, shares issued	[1]	0	38,320,000
Mezzanine equity, shares outstanding	[1]	0	38,320,000
Redeemable Convertible Preferred Stock [Member]
Mezzanine equity, par value	[1]	$ 0.01	$ 0.01
Mezzanine equity, shares authorized	[1]	47,070,000	47,070,000
Mezzanine equity, shares issued	[1]	44,170,000	44,170,000
Mezzanine equity, shares outstanding	[1]	26,129,000	26,129,000
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		Jun. 28, 2013	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Income Statement [Abstract]
Net sales	[1]		$ 366,714		$ 332,727		$ 693,148		$ 625,306
Cost of goods sold	[1]		296,951		267,139		562,527		503,368
Gross profit	[1]		69,763		65,588		130,621		121,938
Operating expenses:
Selling	[1]		20,240		18,635		39,792		35,155
General and administrative	[1]		13,843		13,655		29,641		26,742
Loss (gain) on disposal of assets or businesses		$ (4,848)	281	[1]	204	[1]	345	[1]	(4,532)	[1]
Intangible amortization	[1]		2,610		2,620		5,223		5,240
Income from operations	[1]		32,789		30,474		55,620		59,333
Other expense:
Interest expense	[1]		5,044		4,721		10,095		9,450
Other miscellaneous (income) expense, net	[1]		(240)		(24)		(456)		20
Income before income taxes	[1]		27,985		25,777		45,981		49,863
Income tax expense	[1]		8,926		8,928		16,819		18,139
Equity in net loss of unconsolidated affiliates	[1]		62		192		724		518
Net income	[1]		18,997		16,657		28,438		31,206
Less net income attributable to noncontrolling interest	[1]		2,153		1,917		3,028		3,492
Net income attributable to ADS	[1]		16,844		14,740		25,410		27,714
Change in fair value of Redeemable convertible preferred stock	[1]		7,319		(3,186)		(11,054)		(4,764)
Dividends to Redeemable convertible preferred stockholders	[1]		(37)		(214)		(75)		(430)
Dividends paid to unvested restricted stockholders	[1]				(8)				(16)
Net income available to common stockholders and participating securities	[1]		24,126		11,332		14,281		22,504
Undistributed income allocated to participating securities	[1]		(2,768)		(1,203)		(1,702)		(2,406)
Net income available to common stockholders	[1]		$ 21,358		$ 10,129		$ 12,579		$ 20,098
Weighted average common shares outstanding:
Basic	[1]		51,518		47,250		49,538		47,220
Diluted	[1]		56,463		47,579		52,198		47,634
Net income per share:
Basic	[1]		$ 0.41		$ 0.21		$ 0.25		$ 0.43
Diluted	[1]		$ 0.41		0.21		$ 0.25		0.42
Cash dividends declared per share	[1]				$ 0.03				$ 0.06
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	[1]	$ 18,997	$ 16,657	$ 28,438	$ 31,206
Other comprehensive (loss) income:
Currency translation, before tax	[1]	(3,591)	1,405	(3,432)	(3,076)
Other, before tax	[1]				5
Total other comprehensive (loss) income, before tax	[1]	(3,591)	1,405	(3,432)	(3,071)
Tax attributes of items in other comprehensive (loss) income:
Other	[1]				(2)
Total tax benefit	[1]				(2)
Comprehensive income	[1]	15,406	18,062	25,006	28,133
Less other comprehensive loss attributable to noncontrolling interest, net of tax	[1]	(761)	(293)	(907)	(1,266)
Less net income attributable to noncontrolling interest	[1]	2,153	1,917	3,028	3,492
Total comprehensive income attributable to ADS	[1]	$ 14,014	$ 16,438	$ 22,885	$ 25,907
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013
Statement of Cash Flows [Abstract]
Cash Flows from Operating Activities	[1]	$ 14,906	$ 8,385
Cash Flows from Investing Activities
Capital expenditures	[1]	(15,596)	(21,561)
Proceeds from sale of assets or businesses	[1]	156	6,056
Investment in unconsolidated affiliate	[1]	(7,566)	(5,300)
Additions of capitalized software	[1]	(441)	(186)
Other investing activities	[1]	(525)	(533)
Net cash used in investing activities	[1]	(23,972)	(21,524)
Cash Flows from Financing Activities
Proceeds from Revolving Credit Facility	[1]	174,760	225,400
Payments on Revolving Credit Facility	[1]	(227,000)	(242,300)
Proceeds from term loan	[1]		100,000
Payments on term loan	[1]	(2,500)	(77,500)
Proceeds from Senior Notes	[1]		25,000
Payments of notes, mortgages, and other debt	[1]	(1,665)	(963)
Payments on capital lease obligation	[1]	(5,467)	(5,899)
Payments for deferred initial public offering costs	[1]	(4,458)
Debt issuance costs	[1]		(2,311)
Proceeds from initial public offering of common stock, net of underwriter discounts and commissions	[1]	79,131
Cash dividends paid	[1]	(1,007)	(4,293)
Redemption of Redeemable convertible preferred stock	[1]		(3,146)
Other financing activities	[1]	152	(183)
Net cash provided by financing activities	[1]	11,946	13,805
Effect of exchange rate changes on cash and cash equivalents	[1]	(230)	9
Net change in cash	[1]	2,650	675
Cash at beginning of period	[1]	3,931	1,361
Cash at end of period	[1]	$ 6,581	$ 2,036
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Deficit) and Mezzanine Equity - USD ($) shares in Thousands, $ in Thousands		Total		Common Stock [Member]	Paid In Capital [Member]	Common Stock in Treasury [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings (Deficit) [Member]	Total ADS Stockholders' Equity (Deficit) [Member]	Non-controlling Interest in Subsidiaries [Member]	Deferred Compensation - Unearned ESOP Shares [Member]	Total Mezzanine Equity [Member]	Redeemable Common Stock [Member]	Redeemable Convertible Preferred Stock [Member]
Beginning Balance, Value (As Previously Reported [Member]) at Apr. 01, 2013		$ (285,722)		$ 11,957	$ 41,152	$ (448,571)	$ (856)	$ 87,331	$ (308,987)	$ 23,265	$ (196,477)	$ 608,346	$ 522,276	$ 282,547
Beginning Balance, Value at Apr. 01, 2013	[1]	(299,923)		$ 11,957	40,026	$ (448,571)	(1,081)	79,202	(318,467)	18,544	$ (196,477)	608,346	$ 522,276	$ 282,547
Beginning Balance, Shares (As Previously Reported [Member]) at Apr. 01, 2013				109,979		101,191					18,461		38,292	26,547
Beginning Balance, Shares at Apr. 01, 2013	[1]			109,979		101,191					18,461		38,292	26,547
Net income | As Previously Reported [Member]		34,493
Net income		31,206	[1]					27,714	27,714	3,492
Other comprehensive loss		(3,073)					(1,807)		(1,807)	(1,266)
Redeemable convertible preferred stock dividends		(355)						(355)	(355)
Common stock dividend ($0.058 per share)		(2,724)						(2,724)	(2,724)
Dividend paid to noncontrolling interest holder		(1,214)								(1,214)
Allocation of ESOP shares to participants for compensation, Value		(1,023)			(1,023)				(1,023)		$ 6,049	6,049
Allocation of ESOP shares to participants for compensation, Shares											(537)
Exercise of common stock options, Value		526			109	$ 417			526
Exercise of common stock options, Shares						(94)
Redemption of common shares to exercise stock options, Value					204	$ (204)
Redemption of common shares to exercise stock options, Shares						14
Stock based compensation		462			462				462
Restricted stock awards, Value		1,178			850	$ 328			1,178
Restricted stock awards, Shares						(104)
Redemption of redeemable convertible preferred stock, Value												(3,146)		$ (3,146)
Redemption of redeemable convertible preferred stock, Shares														(297)
Purchase of common stock		(171)				$ (171)			(171)
Purchase of common stock, Shares						14
Reclassification of common stock to redeemable common stock, Value		(385)			(385)				(385)			385	$ 385
Reclassification of common stock to redeemable common stock, Shares				(28)									28
Adjustments to redeemable common stock fair value measurement		(4,764)						(4,764)	(4,764)		$ (11,409)	4,764		$ 16,173
Adjustments to redeemable common stock fair value measurement		(30,528)						(30,528)	(30,528)			30,528	$ 30,528
Ending Balance, Value at Sep. 30, 2013	[1]	(310,788)		$ 11,957	40,243	$ (448,201)	(2,888)	68,545	(330,344)	19,556	$ (201,837)	646,926	$ 553,189	$ 295,574
Ending Balance, Shares at Sep. 30, 2013	[1]			109,951		101,021					17,924		38,320	26,250
Cumulative restatement adjustment		(14,201)			(1,126)		(225)	(8,129)	(9,480)	(4,721)
Beginning Balance, Value (As Previously Reported [Member]) at Mar. 31, 2014		(397,336)		$ 11,957	22,547	$ (448,439)	(5,977)		(419,912)	22,576	$ (197,888)	642,951	$ 549,119	$ 291,720
Beginning Balance, Value at Mar. 31, 2014	[1]	(414,702)
Beginning Balance, Value at Mar. 31, 2014	[1]	(414,702)		$ 11,957	12,438	$ (448,439)	(6,830)	(2,412)	(433,286)	18,584	$ (197,888)	642,951	$ 549,119	$ 291,720
Beginning Balance, Shares (As Previously Reported [Member]) at Mar. 31, 2014				109,951		100,810					17,727		38,320	26,129
Beginning Balance, Shares at Mar. 31, 2014	[1]			109,951		100,810					17,727		38,320	26,129
Net income | As Previously Reported [Member]		37,437
Net income		28,438	[1]					25,410	25,410	3,028
Other comprehensive loss		(3,432)					(2,525)		(2,525)	(907)
Dividend paid to noncontrolling interest holder		(1,007)								(1,007)
Allocation of ESOP shares to participants for compensation, Value		(1,339)			(1,339)				(1,339)		$ 6,713	6,713
Allocation of ESOP shares to participants for compensation, Shares											(537)
Exercise of common stock options, Value		523			174	$ 349			523
Exercise of common stock options, Shares						(78)
Redemption of common shares to exercise stock options, Value					93	$ (93)
Redemption of common shares to exercise stock options, Shares						7
Stock based compensation		1,778			1,778				1,778
Restricted stock awards, Value		1,998			1,489	$ 509			1,998
Restricted stock awards, Shares						(114)
Initial Public Offering (IPO), Value		72,298		$ 53	72,245				72,298
Initial Public Offering (IPO), Shares				5,289
Reclassification of liability classified stock options upon IPO		1,522			1,522				1,522
Adjustments to redeemable convertible preferred stock fair value measurement		(11,054)			(13,077)			2,023	(11,054)		$ (23,849)	11,054		$ 34,903
Adjustments to redeemable common stock fair value measurement		(65,921)						(65,921)	(65,921)			65,921	$ 65,921
Termination of redemption feature upon IPO, Value		615,040		$ 383	614,657				615,040			(615,040)	$ (615,040)
Termination of redemption feature upon IPO, Shares				38,320									(38,320)
Ending Balance, Value at Sep. 30, 2014	[1]	224,142		$ 12,393	689,980	$ (447,674)	(9,355)	(40,900)	204,444	19,698	$ (215,024)	$ 111,599		$ 326,623
Ending Balance, Shares at Sep. 30, 2014	[1]			153,560		100,625					17,190			26,129
Cumulative restatement adjustment		$ (17,366)			$ (10,109)		$ (853)	$ (2,412)	$ (13,374)	$ (3,992)
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Consolidated Statements of Sto8

Consolidated Statements of Stockholders' Equity (Deficit) and Mezzanine Equity (Parenthetical)	6 Months Ended
	Sep. 30, 2013$ / shares
Common stock dividend per share	$ 0.06	[1]
Total Mezzanine Equity [Member]
Common stock dividend per share	$ 0.058
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Background and Summary of Signi

Background and Summary of Significant Accounting Policies	6 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]
Background and Summary of Significant Accounting Policies	1. BACKGROUND AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization Advanced Drainage Systems, Inc. (collectively with its subsidiaries referred to as “ADS”, the “Company”, “we”, “us” and “our”), incorporated in Delaware, designs, manufactures and markets high performance thermoplastic corrugated pipe and related water management products, primarily in North and South America and Europe. Our broad product line includes corrugated high density polyethylene (or “HDPE”) pipe, polypropylene (or “PP”) pipe and related water management products. The Company is managed based primarily on the geographies in which it operates and reports results of operations in two reportable segments. The reportable segments are Domestic and International. 2014 Initial Public Offering (“IPO”) On July 11, 2014, in anticipation of the IPO, we executed a 4.707-for-one split of our common and our preferred stock. The effect of the stock split on outstanding shares and earnings per share has been retroactively applied to all periods presented. On July 25, 2014, we completed the IPO of our common stock, which resulted in the sale by the Company of 5,289 shares, bringing the total number of shares issued and outstanding as of July 25, 2014 to 52,881. We received total proceeds from the IPO of $79,131 after excluding underwriter discounts and commissions of $5,501, based upon the price to the public of $16.00 per share. After deducting other offering expenses, we used the net proceeds to reduce the outstanding indebtedness under the revolving portion of our credit facility. The common stock is listed on the New York Stock Exchange under the symbol “WMS.” On August 22, 2014, an additional 600 shares of common stock were sold by certain selling stockholders of the Company as a result of the partial exercise by the underwriters of the over-allotment option granted by the selling stockholders to the underwriters in connection with the IPO. The shares were sold at the public offering price of $16.00 per share. The Company did not receive any proceeds from the sale of such additional shares. Basis of Presentation The Company prepares its condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The Condensed Consolidated Balance Sheet as of March 31, 2014 was derived from audited financial statements. In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, of a normal recurring nature, in addition to the restatement adjustments described in Note 2. Restatement of Previously Issued Financial Statements, necessary to present fairly its financial position as of September 30, 2014 and the results of operations for the three and six months ended September 30, 2014 and 2013 and cash flows for the six months ended September 30, 2014 and 2013. The interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements, including the notes thereto, filed in our Annual Report on Form 10-K for the year ended March 31, 2015, filed concurrently with this Form 10-Q/A. Principles of Consolidation Our condensed consolidated financial statements include the Company, our wholly-owned subsidiaries, our majority-owned subsidiaries, including ADS Mexicana, S.A. de C.V. (together with its affiliate ADS Corporativo, S.A. de C.V., “ADS Mexicana”), and variable interest entities (“VIEs”) of which we are the primary beneficiary. We use the equity method of accounting for equity investments where we exercise significant influence but do not hold a controlling financial interest. Such investments are recorded in Other assets in our Condensed Consolidated Balance Sheets and the related equity earnings from these investments are included in Equity in net loss of unconsolidated affiliates in our Condensed Consolidated Statements of Operations. All intercompany balances and transactions have been eliminated in consolidation. Estimates The preparation of our condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingencies and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Significant estimates include, but are not limited to, our allowance for doubtful accounts, inventory, useful lives of our property, plant and equipment and amortizing intangible assets, determination of the proper accounting for leases, accounting for investments, evaluation of goodwill, intangible assets and other long-lived assets for impairment, accounting for stock-based compensation and our ESOP, valuation of our Redeemable common stock and Redeemable convertible preferred stock, determination of allowances for sales returns, rebates and discounts, determination of the valuation allowance, if any, on deferred tax assets, and reserves for uncertain tax positions. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Management believes the accounting estimates are appropriate and reasonably determined; however, due to the inherent uncertainties in making these estimates, actual results could differ from those estimates. Property, Plant and Equipment and Depreciation Method Property, plant and equipment are recorded at cost less accumulated depreciation, with the exception of assets acquired through acquisitions, which are initially recorded at fair value. Equipment acquired under capital lease is recorded at the lower of fair market value or the present value of the future minimum lease payments. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings 40 Machinery and equipment 3 – 15 Leasehold improvements Shorter of useful life Costs of additions and major improvements are capitalized, whereas maintenance and repairs that do not improve or extend the life of the asset are charged to expense as incurred. When assets are retired or disposed, the cost and related accumulated depreciation are removed from the asset accounts and any resulting gain or loss is reflected in Loss (gain) on disposal of assets or businesses in our Condensed Consolidated Statements of Operations. Construction in progress is also recorded at cost and includes capitalized interest, capitalized payroll costs and related costs such as taxes and other fringe benefits. Interest capitalized was $177 and $316 during the three and six months ended September 30, 2014, respectively, and $246, and $410 during the three and six months ended September 30, 2013, respectively. Leases Leases are reviewed for capital or operating classification at their inception. The Company uses the lower of the rate implicit in the lease or its incremental borrowing rate in the assessment of lease classification and assumes the initial lease term includes cancellable and renewal periods that are reasonably assured. For leases classified as capital leases at lease inception, we record a capital lease asset and lease financing obligation equal to the lesser of the present value of the minimum lease payments or the fair market value of the leased asset. The capital lease asset is recorded in Property, plant and equipment, net and amortized to its expected residual value at the end of the lease term using the straight-line method, and the lease financing obligation is amortized using the effective interest method over the lease term with the rental payments being allocated to principal and interest. For leases classified as operating leases, we record rent expense over the lease term using the straight-line method. Recent Accounting Pronouncements Not Yet Adopted In April 2014, the Financial Accounting Standards Board issued authoritative guidance amending existing requirements for reporting discontinued operations. Under the new guidance, discontinued operations reporting will be limited to disposal transactions that represent strategic shifts having a major effect on operations and financial results. The amended guidance also enhances disclosures and requires assets and liabilities of a discontinued operation to be classified as such for all periods presented in the financial statements. Public entities will apply the amended guidance prospectively to all disposals occurring within annual periods beginning on or after December 15, 2014, and interim periods within those years. We will adopt this standard effective April 1, 2015. We are currently evaluating the impact of this amendment on our consolidated financial statements. In May 2014, the Financial Accounting Standards Board issued an accounting standards update which amends the guidance for revenue recognition. This amendment contains principles that will require an entity to recognize revenue to depict the transfer of goods and services to customers at an amount that an entity expects to be entitled to in exchange for goods or services. The amendment sets forth a new revenue recognition model that requires identifying the contract, identifying the performance obligations and recognizing the revenue upon satisfaction of performance obligations. This amendment is effective for annual periods beginning on or after December 15, 2016, and interim periods within those years, with earlier adoption not permitted. We will adopt this standard effective April 1, 2017. We are currently evaluating the impact of this amendment on our consolidated financial statements. In August 2014, the Financial Accounting Standards Board issued an accounting standards update which provides guidance for management’s assessment of an entity’s ability to continue as a going concern. The new guidance is intended to define management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. The guidance provides a definition of the term substantial doubt and requires an assessment for a period of one year after the date that the financial statements are issued (or available to be issued). It also requires certain disclosures when substantial doubt is alleviated as a result of the consideration of management’s plans and requires an express statement and other disclosures when substantial doubt is not alleviated. The new standard will be effective for annual periods beginning on or after December 15, 2016, and interim periods within those years, with earlier adoption permitted. We will adopt this standard effective April 1, 2017. We are currently evaluating the impact of this new standard on our consolidated financial statements.

Restatement of Previously Issue

Restatement of Previously Issued Financial Statements	6 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]
Restatement of Previously Issued Financial Statements	2. RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS Background In June of 2015, in connection with the preparation of the Company’s consolidated annual financial statements for the fiscal year ended March 31, 2015, certain errors related to the Company’s accounting treatment for its transportation and equipment leases and inventory methodology were identified. As the Company completed additional accounting review procedures, it identified additional errors related to long-lived assets, ADS Mexicana, and certain other miscellaneous items. Due to these errors, as further described below, and based upon the recommendation of management, the Audit Committee of the Company’s Board of Directors (the “Audit Committee”) determined on August 14, 2015 that the Company’s previously issued financial statements should no longer be relied upon. As a result of the foregoing, the Company has restated its condensed consolidated financial statements as of September 30, 2014 and March 31, 2014 and for the three and six months ended September 30, 2014 and 2013. The restatement also affects periods prior to fiscal year 2014, with the cumulative effect of the errors reflected as an adjustment to the fiscal year 2014 opening stockholders’ equity (deficit) balance. Accounting Adjustments The following is a discussion of the significant accounting adjustments that were made to the Company’s historical condensed consolidated financial statements. Lease Accounting Adjustments The Company leases real estate and equipment under various lease agreements. Historically, assets leased under the Company’s transportation and equipment leasing program (“Fleet Leases”) have been classified as operating leases. However, based upon a reexamination of the Company’s historic assumptions, estimates and judgments with respect to lease accounting, the Company has determined that a substantial portion of the Fleet Leases should instead be classified as capital leases. The Company has also reexamined its historic assumptions, estimates and judgments with respect to the accounting for real estate and aircraft leases that were previously classified as operating leases. In many cases, the Company has determined that the leases should instead be classified as capital leases due to the inclusion of contingent penalty amounts in the minimum lease payments used for purposes of the lease classification assessment. Inventory Accounting Adjustments The Company identified and corrected certain errors related to its accounting for inventory. The errors primarily related to the Company’s incorrect historical calculation of inventory costing based on the first-in first-out (“FIFO”) method, the inappropriate capitalization of certain inter-plant freight expense and other overhead costs, the misclassification of certain overhead costs between general and administrative expense and cost of goods sold and the misclassification of our financial fuel hedge losses between Cost of goods sold and Other miscellaneous (income) expense, net. Long-Lived Assets Accounting Adjustments The Company identified and corrected certain errors related to the accounting for long-lived assets included in Property, plant and equipment, Goodwill, Intangible assets and Other assets in the condensed consolidated balance sheets. These errors primarily related to either the initial capitalization, subsequent depreciation or amortization, or the timing or amount of impairment charges. ADS Mexicana Accounting Adjustments In October 2015, the Company became aware of questions related to the proper characterization of certain ADS Mexicana transactions including an aircraft leasing arrangement, a real estate leasing arrangement and several service arrangements that involved ADS Mexicana related parties. Based on the results of a management review and an independent investigation authorized by the Audit Committee, it was determined that the various lease and services arrangements described above, as well as certain additional services arrangements with former related parties identified during the course of the investigation, lacked commercial and economic substance or proper supporting documentation as to the service performed, and therefore were not appropriately reflected in the Company’s consolidated financial statements. These errors have been corrected in the restated condensed consolidated financial statements, with these adjustments primarily impacting Other miscellaneous (income) expense, net, Net income attributable to noncontrolling interest and Noncontrolling interest in subsidiaries. Management also identified potential accounting errors related to ADS Mexicana’s revenue recognition cut-off practices, which were included in the scope of the independent investigation authorized by the Audit Committee. As a result, the Company identified instances where ADS Mexicana recognized revenue prior to the date of shipment or transfer of title/ownership, which is not in accordance with U.S. GAAP. The Company also identified and corrected certain other errors related to the accounting for ADS Mexicana. These adjustments related to the increase of the allowance for doubtful accounts, errors related to the inventory costing methodology, and certain other miscellaneous items. Income Taxes and Other Accounting Adjustments The Company recorded adjustments to income taxes to reflect the impact of the restatement adjustments, as well as discrete tax adjustments related to transfer pricing. See Note 18. Income Taxes for discussion of the related impact to our effective tax rate. The Company also identified and corrected certain other errors, all of which are insignificant individually and in the aggregate. The nature of the primary items besides income taxes in this category of adjustments is described as follows: • The adjustments to the accrued liability for customer rebates are the result of the Company’s prior methodology not properly capturing all rebates due at period end. • The adjustments related to the Tuberias Tigre – ADS Limitada joint venture (“South American Joint Venture”) were the result of an impairment of equipment in the fiscal year ended March 31, 2014 that was not identified until the time of a subsequent-year statutory audit. As a result, the Company has corrected its equity method accounting to properly reflect the impairment charge. Impact on Condensed Consolidated Statements of Operations The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of operations for the three months ended September 30, 2014 and 2013 is as follows: Three Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 364,724 $ — $ — $ — $ 1,856 $ 134 $ 366,714 Cost of goods sold 282,282 531 11,665 16 1,815 642 296,951 Gross profit 82,442 (531 ) (11,665 ) (16 ) 41 (508 ) 69,763 Operating expenses: Selling 19,762 281 (24 ) 143 162 (84 ) 20,240 General and administrative 18,879 (18 ) (4,574 ) 75 (477 ) (42 ) 13,843 Loss on disposal of assets or businesses — 23 — 258 — — 281 Intangible amortization 2,638 — — (28 ) — — 2,610 Income from operations 41,163 (817 ) (7,067 ) (464 ) 356 (382 ) 32,789 Other expense: Interest expense 4,338 706 — — — — 5,044 Other miscellaneous income, net (7 ) — — (16 ) (217 ) — (240 ) Income before income taxes 36,832 (1,523 ) (7,067 ) (448 ) 573 (382 ) 27,985 Income tax expense 14,062 — — — — (5,136 ) 8,926 Equity in net loss of unconsolidated affiliates 2 — — — — 60 62 Net income 22,768 (1,523 ) (7,067 ) (448 ) 573 4,694 18,997 Less net income attributable to noncontrolling interest 378 — — — 437 1,338 2,153 Net income attributable to ADS 22,390 (1,523 ) (7,067 ) (448 ) 136 3,356 16,844 Change in fair value of Redeemable convertible preferred stock 7,319 — — — — — 7,319 Dividends to Redeemable convertible preferred stockholders (37 ) — — — — — (37 ) Dividends paid to unvested restricted stockholders — — — — — — — Net income available to common stockholders and participating securities 29,672 (1,523 ) (7,067 ) (448 ) 136 3,356 24,126 Undistributed income allocated to participating securities (3,404 ) 175 811 51 (16 ) (385 ) (2,768 ) Net income available to common stockholders $ 26,268 $ (1,348 ) $ (6,256 ) $ (397 ) $ 120 $ 2,971 $ 21,358 Weighted average common shares outstanding: Basic 51,518 51,518 Diluted 56,463 56,463 Net income per share: Basic $ 0.51 $ 0.41 Diluted $ 0.51 $ 0.41 Three Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 333,240 $ — $ — $ — $ 452 $ (965 ) $ 332,727 Cost of goods sold 260,021 (623 ) 6,690 (40 ) 377 714 267,139 Gross profit 73,219 623 (6,690 ) 40 75 (1,679 ) 65,588 Operating expenses: Selling 18,166 (127 ) (87 ) 179 — 504 18,635 General and administrative 17,917 (104 ) (3,948 ) 101 (455 ) 144 13,655 Loss on disposal of assets or businesses — 4 — 200 — — 204 Intangible amortization 2,861 — — (241 ) — — 2,620 Income from operations 34,275 850 (2,655 ) (199 ) 530 (2,327 ) 30,474 Other expense: Interest expense 3,866 855 — — — — 4,721 Other miscellaneous expense (income), net 287 — — (27 ) (284 ) — (24 ) Income before income taxes 30,122 (5 ) (2,655 ) (172 ) 814 (2,327 ) 25,777 Income tax expense 12,242 — — — — (3,314 ) 8,928 Equity in net loss of unconsolidated affiliates 97 — — — — 95 192 Net income 17,783 (5 ) (2,655 ) (172 ) 814 892 16,657 Less net income attributable to noncontrolling interest 461 — — — 513 943 1,917 Net income attributable to ADS 17,322 (5 ) (2,655 ) (172 ) 301 (51 ) 14,740 Change in fair value of Redeemable convertible preferred stock (3,186 ) — — — — — (3,186 ) Dividends to Redeemable convertible preferred stockholders (214 ) — — — — — (214 ) Dividends paid to unvested restricted stockholders (8 ) — — — — — (8 ) Net income available to common stockholders and participating securities 13,914 (5 ) (2,655 ) (172 ) 301 (51 ) 11,332 Undistributed income allocated to participating securities (1,536 ) 1 320 21 (36 ) 27 (1,203 ) Net income available to common stockholders $ 12,378 $ (4 ) $ (2,335 ) $ (151 ) $ 265 $ (24 ) $ 10,129 Weighted average common shares outstanding: Basic 47,250 47,250 Diluted 47,579 47,579 Net income per share: Basic $ 0.26 $ 0.21 Diluted $ 0.26 $ 0.21 Cash dividends declared per share $ 0.03 $ 0.03 The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of operations for the six months ended September 30, 2014 and 2013 is as follows: Six Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 693,021 $ — $ — $ — $ 1,850 $ (1,723 ) $ 693,148 Cost of goods sold 538,546 171 21,120 67 2,349 274 562,527 Gross profit 154,475 (171 ) (21,120 ) (67 ) (499 ) (1,997 ) 130,621 Operating expenses: Selling 39,008 171 129 370 49 65 39,792 General and administrative 39,411 (98 ) (8,488 ) 198 (1,015 ) (367 ) 29,641 Loss on disposal of assets or businesses — 74 — 271 — — 345 Intangible amortization 5,279 — — (56 ) — — 5,223 Income from operations 70,777 (318 ) (12,761 ) (850 ) 467 (1,695 ) 55,620 Other expense: Interest expense 8,953 1,142 — — — — 10,095 Other miscellaneous expense (income), net 7 — — (33 ) (432 ) 2 (456 ) Income before income taxes 61,817 (1,460 ) (12,761 ) (817 ) 899 (1,697 ) 45,981 Income tax expense 23,757 — — — — (6,938 ) 16,819 Equity in net loss of unconsolidated affiliates 623 — — — — 101 724 Net income 37,437 (1,460 ) (12,761 ) (817 ) 899 5,140 28,438 Less net income attributable to noncontrolling interest 806 — — — 664 1,558 3,028 Net income attributable to ADS 36,631 (1,460 ) (12,761 ) (817 ) 235 3,582 25,410 Change in fair value of Redeemable convertible preferred stock (11,054 ) — — — — (11,054 ) Dividends to Redeemable convertible preferred stockholders (75 ) — — — — (75 ) Dividends paid to unvested restricted stockholders — — — — — — Net income available to common stockholders and participating securities 25,502 (1,460 ) (12,761 ) (817 ) 235 3,582 14,281 Undistributed income allocated to participating securities (3,040 ) 174 1,521 97 (28 ) (426 ) (1,702 ) Net income available to common stockholders $ 22,462 $ (1,286 ) $ (11,240 ) $ (720 ) $ 207 $ 3,156 $ 12,579 Weighted average common shares outstanding: Basic 49,538 49,538 Diluted 52,198 52,198 Net income per share: Basic $ 0.45 $ 0.25 Diluted $ 0.45 $ 0.25 Cash dividends declared per share $ — $ — Six Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 626,342 $ — $ — $ — $ 991 $ (2,027 ) $ 625,306 Cost of goods sold 487,120 (784 ) 15,038 (497 ) 1,508 983 503,368 Gross profit 139,222 784 (15,038 ) 497 (517 ) (3,010 ) 121,938 Operating expenses: Selling 35,843 (272 ) 151 193 (1,456 ) 696 35,155 General and administrative 35,576 (186 ) (7,933 ) 106 (910 ) 89 26,742 Gain on disposal of assets or businesses (4,848 ) 140 — 176 — — (4,532 ) Intangible amortization 5,722 — — (482 ) — — 5,240 Income from operations 66,929 1,102 (7,256 ) 504 1,849 (3,795 ) 59,333 Other expense: Interest expense 7,967 1,483 — — — — 9,450 Other miscellaneous expense, net 816 — — (50 ) (746 ) — 20 Income before income taxes 58,146 (381 ) (7,256 ) 554 2,595 (3,795 ) 49,863 Income tax expense 23,308 — — — — (5,169 ) 18,139 Equity in net loss of unconsolidated affiliates 345 — — — — 173 518 Net income 34,493 (381 ) (7,256 ) 554 2,595 1,201 31,206 Less net income attributable to noncontrolling interest 875 — — — 1,482 1,135 3,492 Net income attributable to ADS 33,618 (381 ) (7,256 ) 554 1,113 66 27,714 Change in fair value of Redeemable convertible preferred stock (4,764 ) — — — — (4,764 ) Dividends to Redeemable convertible preferred stockholders (430 ) — — — — (430 ) Dividends paid to unvested restricted stockholders (16 ) — — — — (16 ) Net income available to common stockholders and participating securities 28,408 (381 ) (7,256 ) 554 1,113 66 22,504 Undistributed income allocated to participating securities (3,124 ) 46 882 (67 ) (135 ) (8 ) (2,406 ) Net income available to common stockholders $ 25,284 $ (335 ) $ (6,374 ) $ 487 $ 978 $ 58 $ 20,098 Weighted average common shares outstanding: Basic 47,220 47,220 Diluted 47,634 47,634 Net income per share: Basic $ 0.54 $ 0.43 Diluted $ 0.53 $ 0.42 Cash dividends declared per share $ 0.06 $ 0.06 Impact on Condensed Consolidated Statements of Comprehensive Income The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of comprehensive income for the three months ended September 30, 2014 and 2013 is as follows: Three Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 22,768 $ (1,523 ) $ (7,067 ) $ (448 ) $ 573 $ 4,694 $ 18,997 Comprehensive income 19,198 (1,523 ) (7,067 ) (456 ) 560 4,694 15,406 Less other comprehensive loss attributable to noncontrolling interest, net of tax (759 ) — — — (2 ) — (761 ) Less net income attributable to noncontrolling interest 378 — — — 437 1,338 2,153 Total comprehensive income attributable to ADS $ 19,579 $ (1,523 ) $ (7,067 ) $ (456 ) $ 125 $ 3,356 $ 14,014 Three Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 17,783 $ (5 ) $ (2,655 ) $ (172 ) $ 814 $ 892 $ 16,657 Comprehensive income 19,193 (5 ) (2,655 ) (174 ) 810 893 18,062 Less other comprehensive loss attributable to noncontrolling interest, net of tax (297 ) — — — 3 1 (293 ) Less net income attributable to noncontrolling interest 461 — — — 513 943 1,917 Total comprehensive income attributable to ADS $ 19,029 $ (5 ) $ (2,655 ) $ (174 ) $ 294 $ (51 ) $ 16,438 The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of comprehensive income for the six months ended September 30, 2014 and 2013 is as follows: Six Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 37,437 $ (1,460 ) $ (12,761 ) $ (817 ) $ 899 $ 5,140 $ 28,438 Comprehensive income 34,019 (1,460 ) (12,761 ) (832 ) 900 5,140 25,006 Less other comprehensive loss attributable to noncontrolling interest, net of tax (912 ) — — — 5 — (907 ) Less net income attributable to noncontrolling interest 806 — — — 664 1,558 3,028 Total comprehensive income attributable to ADS $ 34,125 $ (1,460 ) $ (12,761 ) $ (832 ) $ 231 $ 3,582 $ 22,885 Six Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 34,493 $ (381 ) $ (7,256 ) $ 554 $ 2,595 $ 1,201 $ 31,206 Comprehensive income 31,440 (381 ) (7,256 ) 550 2,577 1,203 28,133 Less other comprehensive loss attributable to noncontrolling interest, net of tax (1,270 ) — — — 2 2 (1,266 ) Less net income attributable to noncontrolling interest 875 — — — 1,482 1,135 3,492 Total comprehensive income attributable to ADS $ 31,835 $ (381 ) $ (7,256 ) $ 550 $ 1,093 $ 66 $ 25,907 Impact on Condensed Consolidated Balance Sheets The net effect of the restatement described above on the Company’s previously reported condensed consolidated balance sheets as of September 30, 2014 and March 31, 2014 is as follows: September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Mexicana Income Taxes Other ASSETS Cash $ 6,581 $ — $ — $ — $ — $ — $ 6,581 Receivables, net 248,120 — — — (1,545 ) (529 ) 246,046 Inventories 247,368 (275 ) (17,158 ) (65 ) 1,093 1,299 232,262 Deferred income taxes and other current assets 12,848 — — 325 — 564 13,737 Property, plant and equipment, net 288,170 76,327 — (4,833 ) — 78 359,742 Goodwill 86,280 — — 1,805 — (85 ) 88,000 Intangible assets, net 60,266 — — (6,134 ) — — 54,132 Other assets 68,591 (9 ) — (7,413 ) — 6,491 67,660 Total assets $ 1,018,224 $ 76,043 $ (17,158 ) $ (16,315 ) $ (452 ) $ 7,818 $ 1,068,160 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY (DEFICIT) Current maturities of debt obligations $ 11,148 $ — $ — $ — $ — $ — $ 11,148 Current maturities of capital lease obligations — 12,225 — — — — 12,225 Accounts payable 113,530 — 577 — — 1,609 115,716 Other accrued liabilities 43,508 516 — — — 6,216 50,240 Accrued income taxes 22,360 — — — — (2,662 ) 19,698 Long-term debt obligation 386,435 — — — — — 386,435 Long-term capital lease obligation — 49,237 — — — — 49,237 Deferred tax liabilities 64,398 — — — — (3,997 ) 60,401 Other liabilities 14,263 65 — — — 12,991 27,319 Total liabilities 655,642 62,043 577 — — 14,157 732,419 Mezzanine equity 109,277 — — — — 2,322 111,599 Common stock 12,393 — — — — — 12,393 Paid-in capital 675,183 — — — — 14,797 689,980 Common stock in treasury, at cost (447,674 ) — — — — — (447,674 ) Accumulated other comprehensive loss (8,483 ) — — (25 ) (545 ) (302 ) (9,355 ) Retained earnings (deficit) — 14,000 (17,735 ) (16,290 ) 126 (21,001 ) (40,900 ) Noncontrolling interest in subsidiaries 21,886 — — — (33 ) (2,155 ) 19,698 Total liabilities, mezzanine equity and stockholders’ equity (deficit) $ 1,018,224 $ 76,043 $ (17,158 ) $ (16,315 ) $ (452 ) $ 7,818 $ 1,068,160 March 31, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Mexicana Income Taxes Other ASSETS Cash $ 3,931 $ — $ — $ — $ — $ — $ 3,931 Receivables, net 150,713 — — — (3,404 ) 962 148,271 Inventories 260,300 (86 ) (4,270 ) (130 ) 2,475 1,602 259,891 Deferred income taxes and other current assets 13,555 — — 343 — 567 14,465 Property, plant and equipment, net 292,082 62,903 — (4,663 ) — 29 350,351 Goodwill 86,297 — — 1,805 — (85 ) 88,017 Intangible assets, net 66,184 — — (6,991 ) — 1 59,194 Other assets 64,533 (15 ) — (5,759 ) — 6,688 65,447 Total assets $ 937,595 $ 62,802 $ (4,270 ) $ (15,395 ) $ (929 ) $ 9,764 $ 989,567 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ DEFICIT Current maturities of debt obligations $ 11,153 $ — $ — $ — $ — $ — $ 11,153 Current maturities of capital lease obligations — 12,364 — — — — 12,364 Accounts payable 108,111 — 704 88 — 2,069 110,972 Other accrued liabilities 37,956 530 — — — 4,599 43,085 Accrued income taxes 7,372 — — — — 608 7,980 Long-term debt obligation 442,895 — — — — — 442,895 Long-term capital lease obligation — 34,366 — — — — 34,366 Deferred tax liabilities 69,169 — — — — (2,836 ) 66,333 Other liabilities 15,324 82 — — — 16,764 32,170 Total liabilities 691,980 47,342 704 88 — 21,204 761,318 Mezzanine equity 642,951 — — — — — 642,951 Common stock 11,957 — — — — — 11,957 Paid-in capital 22,547 — — — — (10,109 ) 12,438 Common stock in treasury, at cost (448,439 ) — — — — — (448,439 ) Accumulated other comprehensive loss (5,977 ) — — (9 ) (541 ) (303 ) (6,830 ) Retained earnings (deficit) — 15,460 (4,974 ) (15,474 ) (108 ) 2,684 (2,412 ) Noncontrolling interest in subsidiaries 22,576 — — — (280 ) (3,712 ) 18,584 Total liabilities, mezzanine equity and stockholders’ deficit $ 937,595 $ 62,802 $ (4,270 ) $ (15,395 ) $ (929 ) $ 9,764 $ 989,567 Cumulative Effect of Prior Period Adjustments The following table presents the impact of the restatement described above to the Company’s beginning stockholders’ equity (deficit) balances, cumulatively to reflect adjustments booked to all periods prior to April 1, 2013: (Amounts in thousands) Common Paid in Common Accumulated Retained Total ADS Non-controlling Total Stockholders’ equity (deficit), April 1, 2013 (as previously reported) $ 11,957 $ 41,152 $ (448,571 ) $ (856 ) $ 87,331 $ (308,987 ) $ 23,265 $ (285,722 ) Adjustments from: — — — — — — — — Lease Accounting, before income tax effect — — — — 17,883 17,883 — 17,883 Inventory, before income tax effect — — — — (3,490 ) (3,490 ) — (3,490 ) Long-Lived Assets, before income tax effect — — — 1 (15,780 ) (15,779 ) — (15,779 ) ADS Mexicana, before income tax effect — — — (496 ) (586 ) (1,082 ) (649 ) (1,731 ) All other non-income tax adjustments — (1,126 ) — 270 (14 ) (870 ) (4,072 ) (4,942 ) Income tax adjustments — — — — (6,142 ) (6,142 ) — (6,142 ) Total adjustments — (1,126 ) — (225 ) (8,129 ) (9,480 ) (4,721 ) (14,201 ) Stockholders’ equity (deficit), April 1, 2013 (As Restated) $ 11,957 $ 40,026 $ (448,571 ) $ (1,081 ) $ 79,202 $ (318,467 ) $ 18,544 $ (299,923 ) Impact on Condensed Consolidated Statements of Cash Flows The net effect of the restatement on the Company’s previously reported condensed consolidated statements of cash flows for the six months ended September 30, 2014 and 2013 is as follows: For the Six Months Ended September 30, 2014 (Amounts in thousands) As Previously Adjustments As Restated Net cash provided by operating activities $ 10,807 $ 4,099 $ 14,906 Net cash used in investing activities (25,742 ) 1,770 (23,972 ) Net cash provided by financing activities 17,836 (5,890 ) 11,946 For the Six Months Ended September 30, 2013 (Amounts in thousands) As Previously Adjustments As Restated Net cash provided by operating activities $ 3,283 $ 5,102 $ 8,385 Net cash used in investing activities (23,036 ) 1,512 (21,524 ) Net cash provided by financing activities 20,428 (6,623 ) 13,805

Disposal of Assets or Businesse

Disposal of Assets or Businesses	6 Months Ended
	Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]
Disposal of Assets or Businesses	3. DISPOSAL OF ASSETS OR BUSINESSES On June 28, 2013, we entered into an Asset Purchase Agreement (the “NDS Agreement”) to sell substantially all of the assets used in connection with our Draintech product line to National Diversified Sales, Inc. (“NDS”) in exchange for cash. The NDS Agreement defined the purchase price to consist of a cash payment of $5,877. The net book value for the related assets, consisting of inventory and property and equipment, was $1,029, bringing the net gain recognized to $4,848. The sale transaction closed on June 28, 2013. The Company determined that this sale did not qualify for discontinued operations reporting.

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	4. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment, net as of September 30, 2014 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Land, buildings and improvements $ 161,415 $ 158,588 Machinery and equipment 664,574 640,529 Construction in Progress 15,597 11,003 Total cost 841,586 810,120 Less accumulated depreciation (481,844 ) (459,769 ) Property, plant and equipment - net $ 359,742 $ 350,351 The following table sets forth depreciation expense for the three and six months ended September 30, 2014 and 2013, respectively: Three Months Ended Six Months Ended (Amounts in thousands) 2014 2013 2014 2013 Depreciation expense $ 12,533 $ 12,107 $ 24,790 $ 24,188

Inventories

Inventories	6 Months Ended
	Sep. 30, 2014
Inventory Disclosure [Abstract]
Inventories	5. INVENTORIES Inventories as of September 30, 2014 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, March 31, Raw materials $ 56,859 $ 51,785 Finished goods 175,403 208,106 Total inventory $ 232,262 $ 259,891 We had no work-in-process inventories as of September 30, 2014 and March 31, 2014.

Leases

Leases	6 Months Ended
	Sep. 30, 2014
Leases [Abstract]
Leases	6. LEASES Capital Leases The Company leases certain buildings and transportation equipment including its fleet of trucks and trailers, under capital lease agreements. Leased assets accounted for as capital leases and included in Property, plant and equipment, net consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Buildings and improvements $ 7,163 $ 7,716 Machinery and equipment 165,899 145,980 Total cost 173,062 153,696 Less accumulated amortization (95,858 ) (89,599 ) Leased assets in Property, plant and equipment, net $ 77,204 $ 64,097 The following is a schedule by year of future minimum lease payments under capital leases together with the present value of the net minimum lease payments as of September 30, 2014: (Amounts in thousands) September 30, 2015 $ 15,157 September 30, 2016 15,115 September 30, 2017 13,181 September 30, 2018 9,913 September 30, 2019 7,517 Thereafter 9,407 Total minimum lease payments (a) 70,290 Less: amount representing interest (b) 8,828 Present value of net minimum lease payments $ 61,462 Lease obligation – Current $ 12,225 Lease obligation – Long-term 49,237 Total lease obligation $ 61,462 (a) Excludes contingent rentals which may be paid. Contingent rentals amounted to $375 and $10 for the six months ended September 30, 2014 and 2013, respectively. (b) Amount necessary to reduce minimum lease payments to present value calculated at the lower of the rate implicit in the lease or the Company’s incremental borrowing rate at lease inception. During the three months ended September 30, 2014 and 2013, the Company acquired equipment under capital lease and incurred lease obligations of $5,496 and $5,053, respectively, and during the six months ended September 30, 2014 and 2013, the Company acquired equipment under capital lease and incurred lease obligations of $20,158 and $16,373, respectively. Certain leases contain residual value guarantees that create a contingent obligation on the part of the Company to compensate the lessor if the leased asset cannot be sold for an amount in excess of a specified minimum value at the conclusion of the lease term. The calculation is based on the original cost of the transportation equipment, less lease payments made, compared to a percentage of the transportation equipment’s fair market value at the time of sale. All leased units covered by this guarantee have been classified as capital leases and a corresponding capital lease obligation was recorded. Therefore, no further contingent obligation is needed. Operating leases We lease certain real estate and office equipment under various cancelable and non-cancelable operating lease agreements that expire at various dates through fiscal year 2037. Total rent expense was $645 and $928 for the three months ended September 30, 2014 and 2013, respectively, and $1,625 and $2,231 for the six months ended September 30, 2014 and 2013, respectively. Future minimum rental commitments under operating leases as of September 30, 2014, are summarized below (amounts in thousands): Twelve Months Ended September 30, Thereafter 2015 2016 2017 2018 2019 Future operating lease payments $ 2,842 $ 2,245 $ 1,224 $ 638 $ 416 $ 2,245

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	7. GOODWILL AND INTANGIBLE ASSETS Goodwill The carrying amount of goodwill by reportable segment is as follows: (Amounts in thousands) Domestic International Total Balance at March 31, 2014 $ 87,507 $ 510 $ 88,017 Currency translation — (17 ) (17 ) Balance at September 30, 2014 $ 87,507 $ 493 $ 88,000 Intangible Assets Intangible assets as of September 30, 2014 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Gross Accumulated Net Gross Accumulated Net Definite-lived intangible assets Developed technology $ 40,579 $ (24,497 ) $ 16,082 $ 40,579 $ (22,588 ) $ 17,991 Customer relationships 38,252 (24,244 ) 14,008 38,252 (21,793 ) 16,459 Patents 6,338 (3,235 ) 3,103 6,175 (2,921 ) 3,254 Non-compete and other contractual agreements 1,088 (667 ) 421 1,088 (491 ) 597 Trademarks and tradenames 11,157 (2,627 ) 8,530 11,157 (2,254 ) 8,903 Total definite-lived intangible assets 97,414 (55,270 ) 42,144 97,251 (50,047 ) 47,204 Indefinite-lived intangible assets Trademarks 11,988 — 11,988 11,990 — 11,990 Total intangible assets $ 109,402 $ (55,270 ) $ 54,132 $ 109,241 $ (50,047 ) $ 59,194

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]
Fair Value Measurement	8. FAIR VALUE MEASUREMENT The fair value measurements and disclosure principles of ASC 820 - Fair Value Measurements and Disclosures define fair value, establish a framework for measuring fair value and provide disclosure requirements about fair value measurements. These principles define a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity has the ability to access as of the measurement date. Level 2 — Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 — Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability. When applying fair value principles in the valuation of assets and liabilities, we are required to maximize the use of quoted market prices and minimize the use of unobservable inputs. The Company has not changed its valuation techniques used in measuring the fair value of any financial assets or liabilities during the periods presented. Our fair value estimates take into consideration the credit risk of both the Company and our counterparties. When active market quotes are not available for financial assets and liabilities, we use industry standard valuation models. Where applicable, these models project future cash flows and discount the future amounts to a present value using market-based observable inputs including credit risk, interest rate curves, foreign currency rates and forward and spot prices for currencies. In circumstances where market-based observable inputs are not available, management judgment is used to develop assumptions to estimate fair value. Generally, the fair value of our Level 3 instruments is estimated as the net present value of expected future cash flows based on internal and external inputs. Recurring Fair Value Measurements The assets and liabilities carried at fair value as of September 30, 2014 and March 31, 2014 were as follows: September 30, 2014 (Amounts in thousands) Total Level 1 Level 2 Level 3 Liabilities: Derivative liability - interest rate swaps $ 639 $ — $ 639 $ — Derivative liability - diesel fuel contracts 8 — 8 — Derivative liability - propylene swaps 491 — 491 — Contingent consideration for acquisitions 2,526 — — 2,526 Total liabilities at fair value on a recurring basis $ 3,664 $ — $ 1,138 $ 2,526 March 31, 2014 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets - propylene swaps $ 27 $ — $ 27 $ — Total assets at fair value on a recurring basis $ 27 $ — $ 27 $ — Liabilities & Mezzanine Equity: Derivative liability - interest rate swaps $ 1,001 $ — $ 1,001 $ — Contingent consideration for acquisitions 2,898 — — 2,898 Redeemable common stock 549,119 — — 549,119 Redeemable convertible preferred stock 291,720 — — 291,720 Deferred compensation - unearned ESOP shares (197,888 ) — — (197,888 ) Total liabilities & mezzanine equity at fair value on a recurring basis $ 646,850 $ — $ 1,001 $ 645,849 Changes in the fair value of recurring fair value measurements using significant unobservable inputs (Level 3) for the three and six months ended September 30, 2014 and 2013 were as follows: Three Months Ended September 30, 2014 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at June 30, 2014 $ 2,697 $ 659,431 $ 348,898 $ (233,106 ) $ 777,920 Allocation of ESOP shares to participants — — — $ 804 $ 804 Change in fair value 20 (44,391 ) (22,275 ) 14,956 (51,690 ) Payments of contingent consideration liability (191 ) — — — (191 ) Transfer from Level 3 — (615,040 ) (326,623 ) 217,346 (724,317 ) Balance at September 30, 2014 $ 2,526 $ — $ — $ — $ 2,526 Three Months Ended September 30, 2013 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at June 30, 2013 $ 2,571 $ 532,836 $ 286,828 $ (197,310 ) $ 624,925 Allocation of ESOP shares to participants — — — 3,122 3,122 Change in fair value 40 20,353 10,835 (7,649 ) 23,579 Payments of contingent consideration liability (144 ) — — — (144 ) Redemption of Redeemable convertible preferred stock — — (2,089 ) — (2,089 ) Balance at September 30, 2013 $ 2,467 $ 553,189 $ 295,574 $ (201,837 ) $ 649,393 Six Months Ended September 30, 2014 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at March 31, 2014 $ 2,898 $ 549,119 $ 291,720 $ (197,888 ) $ 645,849 Allocation of ESOP shares to participants — — — $ 4,391 $ 4,391 Change in fair value 2 65,921 34,903 (23,849 ) 76,977 Payments of contingent consideration liability (374 ) — — — (374 ) Transfer from Level 3 — (615,040 ) (326,623 ) 217,346 (724,317 ) Balance at September 30, 2014 $ 2,526 $ — $ — $ — $ 2,526 Six Months Ended September 30, 2013 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at March 31, 2013 $ 2,679 $ 522,276 $ 282,547 $ (196,477 ) $ 611,025 Allocation of ESOP shares to participants — — — 6,049 6,049 Change in fair value 129 30,528 16,173 (11,409 ) 35,421 Payments of contingent consideration liability (341 ) — — — (341 ) Redemption of Redeemable convertible preferred stock — — (3,146 ) — (3,146 ) Transfer to Level 3 — 385 — — 385 Balance at September 30, 2013 $ 2,467 $ 553,189 $ 295,574 $ (201,837 ) $ 649,393 For the six months ended September 30, 2014 our Redeemable common stock transferred out of Level 3, as these securities started actively trading on the NYSE during the second quarter of fiscal 2015. In addition, our Redeemable convertible preferred stock and Deferred compensation – unearned ESOP were reclassified from a recurring Level 3 fair value measurement to a non-recurring Level 3 fair value measurement as a result of the IPO. See Note 1. Significant Accounting Policies for further information on the IPO. There were no further transfers in or out of Levels 1, 2 and 3 for the fiscal year ended March 31, 2014 and the six months ended September 30, 2014. Valuation of our Contingent Consideration for Acquisitions The fair values of the contingent consideration payables were calculated with reference to the estimated future value of the Inserta Tee and Flexstorm businesses, which are based on a discounted cash flow model. The undiscounted value is discounted at the present value using a market discount rate. The categorization of the framework used to price this liability is considered a Level 3, due to the subjective nature of the unobservable inputs used to determine the fair value. Valuation of our Redeemable Common Stock The Company has certain shares of common stock outstanding allowing the holder to put its shares to us for cash. This Redeemable common stock was historically recorded at its fair value in the mezzanine equity section of our Condensed Consolidated Balance Sheets and changes in fair value were recorded in Retained earnings. Historically, the fair value of a share of common stock was determined by management by applying industry-appropriate multiples to EBITDA and performing a discounted cash flow analysis. Under the industry-appropriate multiples approach, to arrive at concluded multiples, we considered differences between the risk and return characteristics of ADS and the guideline companies. Under the discounted cash flow analysis, the cash flows expected to be generated by the Company are discounted to their present value equivalent using a rate of return that reflects the relative risk of an investment in ADS, as well as the time value of money. This return is an overall rate based upon the individual rates of return for invested capital (equity and interest-bearing debt). The return, known as the weighted average cost of capital (“WACC”), is calculated by weighting the required returns on interest-bearing debt and common stock in proportion to their estimated percentages in an expected capital structure. The WACC used was 11% as of March 31, 2014. An increase in the WACC would decrease the fair value of the Redeemable common stock. The categorization of the framework used to price this temporary equity is considered a Level 3, due to the subjective nature of the unobservable inputs used to determine the fair value. The redemption feature of our Redeemable common stock allowing the holder to put its shares to us for cash, as discussed in the previous paragraph, was not in effect upon effectiveness of the IPO on July 25, 2014. As a result, the Redeemable common stock was recorded as mezzanine equity at fair value through the effective date of the IPO and was subsequently reclassified at that fair value to stockholders’ equity. See Note 1. Background and Summary of Significant Accounting Policies for more information on the IPO. Nonrecurring Fair Value Measurements Valuation of our Redeemable Convertible Preferred Stock The Trustee of the Company’s ESOP has the ability to put the shares of our Redeemable convertible preferred stock to the Company. Our Redeemable convertible preferred stock is recorded at its fair value in the mezzanine equity section of our Condensed Consolidated Balance Sheets and changes in fair value are recorded in Retained earnings. Accordingly, we estimated the fair value of the Redeemable convertible preferred stock through estimating the fair value of the Company’s common stock and applying certain adjustments including for the fair value of the total dividends to be received and assuming conversion of the Redeemable convertible preferred stock to common stock at the stated conversion ratio per our Certificate of Incorporation. The categorization of the framework used to price this temporary equity is considered a Level 3, due to the subjective nature of the unobservable inputs used to determine the fair value. Upon the effective date of the IPO, the redemption feature of our Redeemable convertible preferred stock allowing the Trustee of the Company’s ESOP to put shares to us for cash was no longer applicable. However, if our common stock, which our Redeemable convertible preferred stock may convert to, is no longer a “registration-type class of security” (e.g., in the event of a delisting), the option held by the Trustee, which granted it the ability to put the shares of our Redeemable convertible preferred stock to us, would then become applicable. Preferred securities that become redeemable upon a contingent event that is not solely within the control of the Company should be classified outside of permanent equity. As of September 30, 2014, the Company has determined that it is not probable that the redemption feature will become applicable. Since the Redeemable convertible preferred stock is not currently redeemable and it is not probable that the instrument will become redeemable, subsequent adjustment to fair value is not required. As such, the Redeemable convertible preferred stock was recorded to fair value at the effective date of the IPO on July 25, 2014 and will remain in mezzanine equity without further adjustment to carrying value unless it becomes probable that the redemption feature will become applicable. See Note 1. Background and Summary of Significant Accounting Policies for more information on the 2014 Initial Public Offering and Note 16. Redeemable Convertible Preferred Stock for further information on the Redeemable convertible preferred stock. Valuation of our Goodwill and Indefinite Lived Intangible Assets Goodwill and indefinite lived intangible assets are tested for impairment annually as of March 31 or whenever events or changes in circumstances indicate the carrying value may be greater than fair value.

Ads Mexicana

Ads Mexicana	6 Months Ended
	Sep. 30, 2014
Equity Method Investments and Joint Ventures [Abstract]
Ads Mexicana	9. ADS MEXICANA We participate in joint ventures from time to time for the purpose of expanding upon our growth of manufacturing and selling HDPE corrugated pipe in emerging markets. We invested in ADS Mexicana for the purpose of expanding upon our growth of manufacturing and selling ADS licensed HDPE corrugated pipe and related products in the Mexican and Central American markets via the joint venture partner’s local presence and expertise throughout the region. In April 2013, ADS Worldwide acquired an additional 1% equity interest in its consolidated subsidiary ADS Mexicana stock for $520, increasing the Company’s ownership percentage to 51% from 50%. We have executed a Technology, Patents and Trademarks Sub-License Agreement and a Distribution Agreement with ADS Mexicana that provides ADS Mexicana with the rights to manufacture and sell ADS licensed products in Mexico and Central America. We have concluded that we hold a variable interest in and are the primary beneficiary of ADS Mexicana based on our power to direct the most significant activities of ADS Mexicana and our obligation to absorb losses and our right to receive benefits that could be significant to ADS Mexicana. As the primary beneficiary, we are required to consolidate the assets and liabilities of ADS Mexicana. The equity owned by our joint venture partner is shown as Noncontrolling interest in subsidiaries in our Condensed Consolidated Balance Sheets and our joint venture partner’s portion of net income is shown as Net income attributable to noncontrolling interest in our Condensed Consolidated Statements of Operations. The table below includes the assets and liabilities of ADS Mexicana that are consolidated as of September 30, 2014 and March 31, 2014. The balances exclude intercompany transactions that are eliminated upon consolidation. (Amounts in thousands) September 30, 2014 March 31, 2014 Assets Current assets $ 34,534 $ 32,877 Property, plant and equipment, net 20,542 21,633 Other noncurrent assets 3,013 3,378 Total assets $ 58,089 $ 57,888 Liabilities Current liabilities $ 11,019 $ 11,595 Noncurrent liabilities 6,539 7,020 Total liabilities $ 17,558 $ 18,615

Investment in Unconsolidated Af

Investment in Unconsolidated Affiliates	6 Months Ended
	Sep. 30, 2014
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Investment in Unconsolidated Affiliates	10. INVESTMENT IN UNCONSOLIDATED AFFILIATES We participate in three unconsolidated joint ventures, South American Joint Venture, which is 50%-owned by our wholly-owned subsidiary ADS Chile; BaySaver Technologies, LLC (“BaySaver”), which is 55% owned by our wholly-owned subsidiary ADS Ventures, Inc; and Tigre-ADS USA, Inc. (“Tigre-ADS USA”), which is 49% owned by our wholly-owned subsidiary ADS Ventures, Inc. In each case, the Company has concluded that it is appropriate to account for these investments using the equity method, whereby our share of the income or loss of the joint venture is reported in the Condensed Consolidated Statements of Operations under Equity in net (income) loss of unconsolidated affiliates and our investment in the joint venture is included in Other assets in the Condensed Consolidated Balance Sheets. South American Joint Venture Our investment in this unconsolidated joint venture was formed for the purpose of expanding upon our growth of manufacturing and selling HDPE corrugated pipe in the South American market via the joint venture partner’s local presence and expertise throughout the region. We are not required to consolidate South American Joint Venture under ASC 810-10 as we are not the primary beneficiary, although we do hold a significant variable interest through our equity investment and debt guarantee. The results of South American Joint Venture are accounted for in the condensed consolidated financial statements using the equity method of accounting. Our share of the loss of this joint venture is reported in the Condensed Consolidated Statements of Operations under Equity in net loss of unconsolidated affiliates. Our investment in this joint venture is included in Other assets in the Condensed Consolidated Balance Sheets which includes additional capital contributions of $4,000 and $2,875 made during the six months ended September 30, 2014 and the fiscal year ended March 31, 2014, respectively. Summarized financial data as of September 30 and March 31, 2014 for the South American Joint Venture is as follows: (Amounts in thousands) September 30, 2014 March 31, 2014 Investment in South American Joint Venture $ 19,782 $ 18,422 Receivable from South American Joint Venture 4,660 8,313 BaySaver On July 15, 2013, ADS Ventures, Inc., a wholly-owned subsidiary of the Company, BaySaver Technologies, Inc. (“BTI”) and Mid Atlantic Storm Water Research Center, Inc. entered into an LLC agreement to form a new joint venture, BaySaver. The joint venture was established to design, engineer, manufacture, market and sell water quality filters and separators used in the removal of sediment and pollution from storm water anywhere in the world except New Zealand, Australia and South Africa. The Company contributed $3,500 in cash, $1,285 in inventory, and other intangible assets with no carrying value, in exchange for a 55% equity interest and a 50% voting interest in BaySaver. We are not required to consolidate BaySaver under ASC 810-10 as we are not the primary beneficiary, although we do hold a significant variable interest in BaySaver through our equity investment. The Company accounts for its investment in BaySaver under the equity method of accounting. In connection with this investment, the Company acquired a call option to purchase the remaining 45% interest in BaySaver. Also, in connection with the investment, the Company granted a put option enabling the other equity holders to sell their remaining shares in BaySaver to the Company upon the passage of time or the occurrence of certain events. Our share of the income of this joint venture is reported in the Condensed Consolidated Statements of Operations under Equity in net loss of unconsolidated affiliates. Our investment in this joint venture is included in Other assets in the Condensed Consolidated Balance Sheets. Summarized financial data as of September 30 and March 31, 2014 for the BaySaver joint venture is as follows: (Amounts in thousands) September 30, 2014 March 31, 2014 Investment in BaySaver $ 5,217 $ 5,202 Receivable from BaySaver 216 6 Our share of the income of this joint venture is decreased by amortization expense relating to the basis difference between our cost basis in the investment and the basis reflected at the joint venture level. This basis difference is being recorded over the lives of the underlying assets which gave rise to the basis difference, which is 10 years. The unamortized basis difference as of September 30, 2014 is $1,739. Tigre-ADS USA On April 7, 2014, ADS Ventures, Inc., a wholly-owned subsidiary of the Company, and Tigre S.A. – Tubos e Conexoes entered into a stock purchase agreement to form a new joint venture, Tigre-ADS USA Inc. The new joint venture was established to manufacture and sell PVC fittings for waterworks, plumbing, and HVAC applications primarily in the United States and Canadian markets. The Company acquired 49% of the outstanding shares of capital stock of Tigre USA, Inc. for $3,566. The new joint venture represents a continuation of the existing activities of Tigre USA through its Janesville, Wisconsin manufacturing facility. We are not required to consolidate Tigre-ADS USA under ASC 810-10 as we are not the primary beneficiary, although we do hold a significant variable interest in Tigre-ADS USA through our equity investment. The Company accounts for its investment in Tigre-ADS USA under the equity method of accounting. Our share of the loss of this joint venture is reported in the Condensed Consolidated Statements of Operations under Equity in net loss of unconsolidated affiliates. Our investment in this joint venture is included in Other assets in the Condensed Consolidated Balance Sheets. Summarized financial data as of September 30, 2014 for the Tigre-ADS USA joint venture is as follows: (Amounts in thousands) As reported Investment in Tigre-ADS USA $ 3,406 Receivable from Tigre-ADS USA 22

Related Party Transactions

Related Party Transactions	6 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]
Related Party Transactions	11. RELATED PARTY TRANSACTIONS ADS Mexicana ADS conducts business in Mexico and Central America through its joint venture ADS Mexicana. ADS owns 51% of the outstanding stock of ADS Mexicana and consolidates its interest in ADS Mexicana for financial reporting purposes. During the three and six months ended September 30, 2014 and 2013, ADS Mexicana compensated certain owners and former owners of Grupa Altima, the JV partner of ADS Mexicana, for consulting services related to the operations of the business and a noncompete arrangement, respectively. These cash payments totaled $94 and $169 for the three and six months ended September 30, 2014, respectively, and $68 and $99 for the three and six months ended September 30, 2013, respectively. Occasionally, ADS and ADS Mexicana jointly enter into agreements for pipe sales with their related parties which totaled $1,027 and $2,339 for the three and six months ended September 30, 2014, respectively, and $1,908 and $3,776 for the three and six months ended September 30, 2013, respectively. Outstanding receivables related to these sales were $2,052 and $2,480 as of September 30, 2014 and March 31, 2014, respectively. We are the guarantor of 100% of ADS Mexicana’s credit facility and our maximum potential payment under this guarantee totals $12,000. South American Joint Venture Our South American Joint Venture manufactures and sells HDPE corrugated pipe in the South American market. We are the guarantor for 50% of the South American Joint Venture’s credit facility, and the debt guarantee is shared equally with the joint venture partner. Our maximum potential obligation under this guarantee totals $7,000 as of September 30, 2014. The maximum borrowings permitted under the South American Joint Venture’s credit facility is $19,000. This credit facility allows borrowings in either Chilean pesos or US dollars at a fixed interest rate determined at inception of each draw on the facility. The guarantee of South American Joint Venture’s debt is for the life of the credit facility which matures on February 5, 2017. ADS does not anticipate any required contributions related to the balance of this credit facility. As of September 30, 2014 and March 31, 2014, the outstanding principal balance of the credit facility including letters of credit was $12.3 million and $11.1 million, respectively. The weighted average interest rate as of September 30, 2014 was 3.53% on U.S. dollar denominated loans and 6.76% on Chilean peso denominated loans. ADS and the South American Joint Venture have entered into shared services arrangements in order to execute the joint venture services. Included within these arrangements are the lease of an office and plant location used to conduct business and operating expenses related to these leased facilities. Occasionally, ADS and South American Joint Venture jointly enter into agreements for pipe sales with their related parties in immaterial amounts. BaySaver Additionally, ADS holds an equity method investment in BaySaver of approximately 55% which is a joint venture that was established to produce and distribute water quality filters and separators used in the removal of sediment and pollution from storm water. BaySaver may at times provide short-term financing to ADS to enhance liquidity. As of September 30, 2014, BaySaver held an unsecured, interest-free, note receivable from ADS in the amount of $1,000 which was fully paid subsequent to quarter end. ADS and BaySaver have entered into shared services arrangements in order to execute the joint venture services. Included within these arrangements are the lease of a plant and adjacent yard used to conduct business and operating expenses related to the leased facility. Occasionally, ADS and BaySaver jointly enter into agreements for sales of pipe and Allied Products with their related parties in immaterial amounts.

Debt

Debt	6 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]
Debt	12. DEBT Long-term debt as of September 30 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Bank Term Loans Revolving Credit Facility — ADS $ 193,800 $ 248,100 Revolving Credit Facility — ADS Mexicana 2,000 — Term note 95,000 97,500 Senior Notes payable 100,000 100,000 Mortgage notes payable 2,833 3,733 Industrial revenue bonds 3,950 4,715 Total 397,583 454,048 Current maturities (11,148 ) (11,153 ) Long-term debt obligation $ 386,435 $ 442,895 Bank Term Loans The Bank Term Loans include a Revolving Credit Facility with borrowing capacity of $325,000 for ADS, Inc., a Revolving Credit Facility for ADS-Mexicana with borrowing capacity of $12,000 (“the Revolving Credit Facilities”) and a $100,000 term note (“Term note”). The Revolving Credit Facilities expire and the Term note is due in June 2018. The Revolving Credit Facilities and the Term note have a variable interest rate that depends upon the Company’s “pricing ratio” as defined in the agreements for the Revolving Credit Facilities. The interest rate is derived from the London InterBank Offered Rate (“LIBOR”) or alternate base rate (“Prime Rate”) at the Company’s option. The average rate at September 30, 2014 was 2.603%. Any letters of credit outstanding reduce the availability on the revolver. The Company had outstanding letters of credit at September 30, 2014 in the amount of $8,005. The amount available for borrowing for ADS was $123,195, plus $10,000 available under a separate revolving credit facility with our subsidiary, ADS Mexicana, at September 30, 2014. Per the terms of the agreements for the Revolving Credit Facilities, ADS is not required to hedge its interest exposure using interest rate swaps; however, it is currently the objective of ADS to manage its exposure to variable rate debt. On October 7, 2010, ADS executed two Spot Interest Rate Swaps on the 90-Day LIBOR interest rate. One swap is related to the $100,000 Term note which was part of the previous credit agreement. This swap is at a fixed rate of 1.105% for a period of four years, and expired on September 1, 2014. The second swap on the Revolving Credit Facility had a value of $50,000 at a fixed rate of 0.890% for a period of three years, and expired on September 1, 2013. On July 18, 2013, ADS executed two Forward Interest Rate Swaps on the 30-Day LIBOR interest rate. One swap was for $50,000 on the Revolving Credit Facility starting on September 3, 2013 at a fixed rate of 0.86% for a period of three years, expiring on September 1, 2016. The second swap executed on July 18, 2013 was for $50,000 on the Revolving Credit Facility starting on September 2, 2014 at a fixed rate of 1.08% for a period of two years, expiring on September 1, 2016. Senior Notes Payable In December 2009, we signed an agreement with Prudential Investment Management, Inc. for the issuance of senior promissory notes (“Senior Notes”), for an aggregate amount of up to $100,000. During fiscal 2010, we issued $75,000 of Senior Notes with interest fixed at 5.6% and payable quarterly. The rate is subject to an additional 200 basis point excess leverage fee if our calculated leverage ratio exceeds 3 to 1 at the end of a fiscal quarter. A principal payment of $25,000 is due in each of fiscal years 2017, 2018, and 2019. In July 2013, ADS issued an additional $25,000 of Senior Notes. Interest for the additional $25,000 is payable quarterly and is fixed at 4.05%. The rate is subject to an additional 200 basis point excess leverage fee if calculated leverage ratio exceeds 3 to 1 at the end of a fiscal quarter. A principal payment of $25,000 is due in September of the fiscal year 2020. The carrying and fair values of the Company’s Senior Notes were $100,000 and $103,303, respectively, as of September 30, 2014 and $100,000 and $104,511, respectively, at March 31, 2014. The fair value of the Senior Notes was determined based on the interest rate and terms of such borrowings to the rates and terms of similar debt available for the period. The categorization of the framework used to evaluate this debt is considered Level 2. See Note 8. Fair Value Measurement to these financial statements. Mortgage Notes Payable One mortgage note payable with a fixed rate of 5.1% (Hilliard, Ohio) requires monthly installments through fiscal year 2015. In September 2014, a second mortgage with a variable interest rate was paid off (New Miami, Ohio). Land and building with a net book value of approximately $4,971 at September 30, 2014 collateralize the mortgage note. Industrial Revenue Bonds Between 1996 and 2007, ADS issued industrial revenue bonds for the construction of four production facilities. Two of the bonds were retired during fiscal 2011 year and one of the bonds was retired in July of fiscal year 2015. The remaining bond has a variable interest rate based on Securities Industry and Financial Markets Association (SIFMA) municipal swap index rate which is computed weekly. The rate on this bond at September 30, 2014 was 3.84%, including a letter of credit fee of 3.75%. Land and buildings with a net book value of approximately $10,116 at September 30, 2014 collateralize the bond. This bond is not considered an auction rate security. Debt Covenants and Dividend Restrictions The Bank Term Loans and the Senior Notes require, among other provisions, that we (1) maintain a 1.25 to 1 minimum fixed charge coverage ratio; (2) maintain a maximum leverage ratio of 4 to 1; and (3) establish certain limits on permitted transactions, principally related to indebtedness, capital distributions, loans and investments, and acquisitions and dispositions of assets. Capital distributions, including dividends, are prohibited if we are not in compliance with our debt covenants. In any fiscal year, if we are in compliance with all debt covenants and the pro-forma leverage ratio exceeds 3 to 1, capital distributions are permitted up to a limit of $50,000.

Derivative Transactions

Derivative Transactions	6 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Transactions	13. DERIVATIVE TRANSACTIONS The Company uses interest rate swaps, commodity options in the form of collars and swaps, and foreign currency forward contracts to manage its various exposures to interest rate, commodity price, and exchange rate fluctuations. For interest rate swaps, the difference between the spot rate and applicable base rate is recorded in interest expense. For collars, commodity swaps and forward contracts, contract settlement gains and losses are recorded in the Condensed Consolidated Statements of Operations in Cost of goods sold. Gains and (losses) related to the mark-to-market adjustments for changes in fair value of the derivative contracts are recorded in the Condensed Consolidated Statements of Operations as Other miscellaneous expense (income), net. The Company recognized (losses) on mark-to-market adjustments for changes in fair value on derivative contracts of $(67) and $(319) for the three months ended September 30, 2014 and 2013, respectively, and $(163) and $(238) for the six months ended September 30, 2014 and 2013, respectively. A summary of the fair values for the various derivatives at September 30, 2014 and March 31, 2014 is presented below: September 30, 2014 March 31, 2014 (Amounts in thousands) Asset Liability Asset Liability Interest rate swaps $ — $ (638 ) $ — $ (1,001 ) Diesel fuel option collars — (8 ) — Propylene swaps — (491 ) 27 —

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	14. COMMITMENTS AND CONTINGENCIES Purchase Commitments We will, from time to time, secure supplies of resin raw material by agreeing to purchase quantities during a future given period at a fixed price. These purchase contracts are short term in nature and occur in the ordinary course of business. Under such purchase contracts, we have agreed to purchase 30,000 pounds of resin over the period October 2014 through December 2014 at a committed purchase cost of $20,153. Litigation We have been named as a defendant in various litigation matters. Management intends to defend these outstanding claims. We believe we have adequate accrued loss contingencies and that current or threatened litigation matters will not have a material adverse impact on our condensed consolidated results of operations or condensed consolidated financial condition. In management’s opinion, none of these proceedings will materially affect our consolidated operations, cash flows, or financial position, and we have recorded adequate accrued liabilities to cover our estimated probable loss exposure.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Sep. 30, 2014
Equity [Abstract]
Accumulated Other Comprehensive Loss	15. ACCUMULATED OTHER COMPREHENSIVE LOSS The following table presents the changes in balances of each component of Accumulated other comprehensive loss (“AOCL”) for the period ending September 30: (Amounts in thousands) Currency Other Accumulated Balance at April 1, 2013 $ (1,085 ) $ 4 $ (1,081 ) Other comprehensive loss (1,810 ) 5 (1,805 ) Income tax expense (benefit) — (2 ) (2 ) Balance at September 30, 2013 $ (2,895 ) $ 7 $ (2,888 ) Balance at April 1, 2014 (6,838 ) 8 (6,830 ) Other comprehensive loss (2,525 ) — (2,525 ) Balance at September 30, 2014 $ (9,363 ) $ 8 $ (9,355 )

Redeemable Convertible Preferre

Redeemable Convertible Preferred Stock	6 Months Ended
	Sep. 30, 2014
Redeemable Convertible Preferred Stock [Member]
Redeemable Convertible Preferred Stock	16. REDEEMABLE CONVERTIBLE PREFERRED STOCK The Trustee of the Company’s ESOP has the ability to put the shares of our Redeemable convertible preferred stock to the Company. The redeemable convertible preferred stock has a required cumulative 2.5% dividend and is convertible at a rate of 0.7692 shares of common stock for each share of Redeemable convertible preferred stock. We guarantee the value of the redeemable convertible preferred stock at $0.78 per share. The put option requirements of the Internal Revenue Code apply in the event that the Company’s common stock is not a registration type class of security. Therefore, the holders of convertible preferred stock have a put right to require us to repurchase such shares in the event that our common stock is not listed for trading or otherwise quoted on the NYSE, AMEX, NASDAQ, or any other market more senior than the OTC Bulletin Board. Given that the event may trigger redemption of the convertible preferred stock (the listing or quotation on a market more senior than the OTCBB), is not solely within our control, this results in the classification of our convertible preferred stock recorded in the mezzanine section of our Condensed Consolidated Balance Sheets as of September 30, 2014. In accordance with ASC 480-10-S99, as of September 30, 2014, we did not adjust the carrying value of the convertible preferred stock to its redemption value or recognize any changes in fair value as we did not consider it probable that the convertible preferred stock would become redeemable.

Stock-based Compensation

Stock-based Compensation	6 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based Compensation	17. STOCK-BASED COMPENSATION Deferred Compensation — Unearned ESOP Shares The fair value of Redeemable convertible preferred stock held by the ESOP trust, but not yet earned by the ESOP participants or used for dividends, is reported as Deferred compensation — unearned ESOP shares within the mezzanine equity section of our Condensed Consolidated Balance Sheets. Compensation expense and related dividends paid with ESOP shares are recognized based upon the average annual fair value of the shares allocated. The shares allocated are for services rendered throughout the period and, therefore, a simple average is used to calculate average annual fair value. Deferred compensation – unearned ESOP shares are relieved at the fair value, with any difference between the average fair value and the fair value shares when allocated being added to Additional paid in capital. The fair value of the shares allocated was $12.50 and $11.26 per share of Redeemable convertible preferred stock at September 30, 2014 and 2013, respectively, resulting in an average fair value per share of $12.34 and $10.92 for the six months ended September 30, 2014 and 2013, respectively. We recognized compensation expense of $2,687 and $2,506 for the three months ended September 30, 2014 and 2013, respectively, and $5,374 and $5,026 for the six months ended September 30, 2014 and 2013, respectively, related to allocation of ESOP shares to participants for compensation. Stock Options Our 2000 stock option plan (“2000 Plan”) provides for the issuance of incentive common stock options and nonstatutory common stock options to management based upon the discretion of the Board of Directors. The plan generally provides for grants with the exercise price equal to fair value on the date of grant, which vest in three equal annual amounts beginning in year five and expire after 10 years from issuance. In August 2013, a new stock option plan (“2013 Plan”) was approved by the Board of Directors and, as amended, provides for the issuance of up to 3,323 nonstatutory common stock options to management subject to the Board’s discretion. The plan generally provides for grants with the exercise price equal to fair value on the date of grant. The grants vest in five equal annual amounts beginning in year one and expire after 10 years from issuance. Options issued to the Chief Executive Officer vest equally over four years and expire after 10 years from issuance. For both stock option plans, management determines the fair value of the options based on the Black-Scholes option pricing model. This methodology requires significant inputs including the fair value of our common stock, which is determined with the assistance of an independent appraisal performed by a reputable valuation firm. We recognized total stock-based compensation expense under both plans of $1,042 and $387 for the three months ended September 30, 2014 and 2013, respectively, and $2,379 and $462 for the six months ended September 30, 2014 and 2013, respectively, which was included with General and administrative expenses in our Condensed Consolidated Statements of Operations. As of September 30, 2014 and 2013, there was a total of $5,307 and $9,319, respectively, of unrecognized compensation expense related to unvested stock option awards that will be recognized as an expense as the awards vest over the remaining service period. We had approximately 1,097 and 1,412 shares available for granting under the 2000 and 2013 plans, respectively, as of September 30, 2014. We estimate the fair value of stock options granted after April 1, 2006, using a Black-Scholes option-pricing model, with assumptions as follows: September 30, 2014 2013 Expected stock price volatility 40 % 44 % Risk-free interest rate 2.1 % 2.3 % Weighted-average expected option life (years) 8 8 Dividend yield 0.86 % 0.84 % In May 2014, the Board of Directors approved the increase of shares available for granting under the 2013 plan to 1,412 shares. 2000 Plan The stock option transactions as of the six months ended September 30 are summarized as follows: 2014 2013 Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Outstanding at beginning of period 913 $ 9.48 4.1 1,333 $ 8.10 4.0 Issued 78 15.74 15 13.64 Exercised 78 7.36 94 7.77 Forfeited — — 17 10.77 Outstanding at end of period 913 10.20 4.3 1,237 8.19 3.7 Exercisable and vested at end of period 835 9.67 3.8 846 6.80 2.1 Unvested at end of period 78 15.74 9.9 391 11.16 7.1 Vested and expected to vest at end of period 901 $ 10.12 7.7 1,167 $ 8.03 3.5 As a result of the 2014 Initial Public Offering (See Note 1. Background and Summary of Significant Accounting Policies), all unvested stock options from prior issuances immediately vest. A new grant of 78 shares was issued in August 2014 at a fair market value of $15.74 per share. Vesting on this issuance will be recognized as expense as the awards vest over the remaining service period. The following table summarizes information about the nonvested stock option grants as of the six months ended September 30, 2014: Number Weighted Unvested at beginning of period 428 $ 5.82 Granted 78 6.76 Vested 428 5.82 Forfeited — — Unvested at end of period 78 $ 6.76 2013 Plan The stock option transactions as of the six months ended September 30, 2014 for the 2013 Stock Option Plan are summarized as follows: September 30, 2014 September 30, 2013 Number Weighted Exercise Price Weighted Number Weighted Weighted Outstanding at beginning of period 1,911 $ 13.64 9.4 — $ — — Issued – equity classified — — 1,440 13.64 — Issued – liability classified — — 518 13.64 — Exercised — — — 13.64 — Forfeited – equity classified — — 47 13.64 — Outstanding at end of period 1,911 13.64 8.9 1,911 13.64 9.9 Exercisable and vested at end of period 408 13.64 8.9 — — — Unvested at end of period 1,503 13.64 8.9 1,911 13.64 9.9 Vested and expected to vest at end of period 1,881 13.64 8.9 1,704 13.64 9.9 Fair value of options granted during the period — $ — $ 6.22 — The following table summarizes information about the nonvested stock option grants as of September 30, 2014: Number Weighted Unvested at beginning of period 1,911 $ 6.22 Granted — — Vested 408 13.64 Forfeited — — Unvested at end of period 1,503 $ 3.64 Restricted Stock On September 16, 2008, the Board of Directors adopted the restricted stock plan, which provides for the issuance of restricted stock awards to certain key employees. The restricted stock generally vest ratably over a five-year period from the original restricted stock grant date, contingent on the employee’s continuous employment by ADS. In certain instances, however, a portion of the grants vested immediately or for accounting purposes were deemed to have vested immediately, including the grants to the Chief Executive Officer, which do not have a substantial risk of forfeiture as a result of different vesting provisions. Under the restricted stock plan, vested shares are considered issued and outstanding. Employees with restricted stock have the right to dividends on the shares awarded (vested and unvested) in addition to voting rights on non-forfeited shares. The Company recognized compensation expense of $639 and $593 for the three months ended September 30, 2014 and 2013, respectively, and $1,548 and $1,178 for the six months ended September 30, 2014 and 2013, respectively, relating to the issuance of these shares; of this amount, $0 and $385 relates to the restricted shares that vested immediately during the six months ended September 30, 2014 and 2013, respectively. We had approximately 333 shares available for granting under this plan as of September 30, 2014. The following table summarizes information about the unvested restricted stock grants as of September 30, 2014: Number Weighted Unvested at beginning of period 311 $ 12.40 Granted — — Vested 118 12.06 Forfeited 3 10.66 Unvested at end of period 190 $ 12.60 We expect most, if not all, restricted stock grants to vest. As of September 30, 2014, there was approximately $2,306 of unrecognized compensation expense related to the restricted stock that will be recognized over the remaining service period. Non-Employee Director Compensation Plan On June 18, 2014, the Company amended its then-existing Stockholder’s Agreement to authorize shares of stock to be granted to non-employee members of its Board of Directors. The number of shares authorized amounted to 282. The shares typically vest one year from the date of issuance. Under this stock plan, the vested shares granted are considered issued and outstanding. Non-Employee directors with this stock have the right to dividends on the shares awarded (vested and unvested) in addition to voting rights. On September 6, 2014, a total of 48 shares were granted to seven directors at a fair market value of $18.88 per share. These shares will vest on February 27, 2015. The Company recognized compensation expense of $450 and $0 for the three months ended September 30, 2014 and 2013, respectively, and $450 and $0 for the six months ended September 30, 2014 and 2013, respectively, relating to the issuance of these shares. We had approximately 234 shares available for granting under this plan as of September 30, 2014. The following table summarizes information about the unvested Non-Employee Director compensation stock grants as of September 30, 2014: Number Weighted Unvested at beginning of period — $ — Granted 48 18.88 Vested — — Forfeited — — Unvested at end of period 48 $ — We expect all the stock grants to vest. As of September 30, 2014, there was approximately $450 of unrecognized compensation expense related to the restricted stock that will be recognized over the remaining service period.

Income Taxes

Income Taxes	6 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Income Taxes	18. INCOME TAXES The Company’s effective tax rate will vary based on a variety of factors, including overall profitability, the geographical mix of income before taxes and related tax rates in jurisdictions where it operates, as well as discrete events. For the six months ended September 30, 2014 and 2013, the Company utilized an effective tax rate of 36.6% and 36.4%, respectively, to calculate its provision for income taxes. These rates are higher than the federal statutory rate of 35% due principally to state and local taxes, partially offset by foreign income taxed at lower rates.

Net Income Per Share

Net Income Per Share	6 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]
Net Income Per Share	19. NET INCOME PER SHARE Basic net income per share is calculated by dividing the Net income attributable to common stockholders by the weighted-average number of common shares outstanding during the period, without consideration for common stock equivalents. Diluted net income per share is computed by dividing the Net income attributable to common stockholders by the weighted-average number of common share equivalents outstanding for the period. Holders of unvested restricted stock have nonforfeitable rights to dividends when declared on common stock, and holders of Redeemable convertible preferred stock participate in dividends on an as-converted basis when declared on common stock. As a result, unvested restricted stock and Redeemable convertible preferred stock meet the definition of participating securities, which requires us to apply the two-class method to compute both basic and diluted net income per share. The two-class method is an earnings allocation formula that treats participating securities as having rights to earnings that would otherwise have been available to common stockholders. The dilutive effect of stock options and unvested restricted stock is based on the more dilutive of the treasury stock method or the diluted two-class method. In computing diluted net income per share, income available to common shareholders used in the basic net income per share calculation (numerator) is adjusted, subject to sequencing rules, for certain adjustments that would result from the assumed issuance of potential common shares. Diluted net income per share assumes the Redeemable convertible preferred stock would be cash settled through the effective date of the IPO on July 25, 2014, as we have the choice of settling in cash or shares and we have demonstrated past practice and intent of cash settlement. Therefore these shares are excluded from the calculation through the effective date of the IPO. After the effective date of the IPO, Management’s intent is to share settle; therefore, these shares are included in the calculation from July 26, 2014 through September 30, 2014, if dilutive. For purposes of the calculation of diluted net income per share, stock options and unvested restricted stock are considered to be potential common stock and are only included in the calculations when their effect is dilutive. The Company’s Redeemable common stock is included in the weighted-average number of common shares outstanding for calculating basic and diluted net income per share. The following table presents information necessary to calculate net income per share for the three and six months ended September 30, 2013 and 2014, as well as potentially dilutive securities excluded from the weighted average number of diluted common shares outstanding because their inclusion would have been anti-dilutive: Three Months Ended Six Months Ended (Amounts in thousands, except per share data) 2014 2013 2014 2013 Net income per share - Basic Net income attributable to ADS $ 16,844 $ 14,740 $ 25,410 $ 27,714 Adjustment for: Change in fair value of redeemable convertible preferred stock 7,319 (3,186 ) (11,054 ) (4,764 ) Dividends to redeemable convertible preferred stock (37 ) (214 ) (75 ) (430 ) Dividends paid to unvested restricted stockholders — (8 ) — (16 ) Net income available to common stockholders and participating securities 24,126 11,332 14,281 22,504 Undistributed income allocated to participating securities (2,768 ) (1,203 ) (1,702 ) (2,406 ) Net income available to common stockholders - Basic 21,358 10,129 12,579 20,098 Weighted average number of common shares outstanding - Basic 51,518 47,250 49,538 47,220 Net income per common share - Basic $ 0.41 $ 0.21 $ 0.25 $ 0.43 Net income per share - Diluted Net income available to common stockholders - Basic $ 21,358 $ 10,129 $ 12,579 $ 20,098 Undistributed income allocated to participating securities 1,952 — 601 — Net income available to common stockholders - Diluted 23,310 10,129 13,180 20,098 Weighted average number of common shares outstanding - Basic 51,518 47,250 49,538 47,220 Assumed exercise of preferred stock 4,714 — 2,382 — Assumed exercise of stock options 231 329 278 414 Weighted average number of common shares outstanding - Diluted 56,463 47,579 52,198 47,634 Net income per common share - Diluted $ 0.41 $ 0.21 $ 0.25 $ 0.42 Potentially dilutive securities excluded as anti-dilutive 22 38 57 63

Business Segments Information

Business Segments Information	6 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]
Business Segments Information	20. BUSINESS SEGMENTS INFORMATION We operate our business in two distinct operating and reportable segments based on the markets we serve: “Domestic” and “International”. The Chief Operating Decision Maker (“CODM”) evaluates segment reporting based on net sales and Segment Adjusted EBITDA (a non-GAAP measure). We calculate Segment Adjusted EBITDA as net income or loss before interest, income taxes, depreciation and amortization, stock-based compensation expense, non-cash charges and certain other expenses. Domestic - International – The following table sets forth reportable segment information with respect to the amount of net sales contributed by each class of similar products of our consolidated gross profit for the three and six months ended September 30, 2014 and 2013, respectively: Three Months Ended Six Months Ended (Amounts in thousands) 2014 2013 2014 2013 Domestic Pipe $ 241,713 $ 223,099 $ 457,749 $ 411,179 Allied Products 78,063 72,008 151,652 138,455 Total domestic 319,776 295,107 609,401 549,634 International Pipe 38,218 30,496 68,149 60,600 Allied Products 8,720 7,124 15,598 15,072 Total international 46,938 37,620 83,747 75,672 Total net sales $ 366,714 $ 332,727 $ 693,148 $ 625,306 The following sets forth certain additional financial information attributable to our reportable segments for the three and six months ended September 30, 2014, and 2013, respectively: Three Months Ended Six Months Ended (Amounts in thousands) 2014 2013 2014 2013 Net sales Domestic $ 319,776 $ 295,107 $ 609,401 $ 549,634 International 46,938 37,620 83,747 75,672 Total $ 366,714 $ 332,727 $ 693,148 $ 625,306 Gross profit Domestic $ 65,574 58,073 119,641 107,804 International 4,189 7,515 10,980 14,134 Total $ 69,763 $ 65,588 $ 130,621 $ 121,938 Segment Adjusted EBITDA Domestic $ 53,904 45,290 94,896 83,426 International 1,296 5,228 5,432 10,568 Total $ 55,200 $ 50,518 $ 100,328 $ 93,994 Interest expense, net Domestic $ 5,020 4,667 10,062 9,360 International 24 54 33 90 Total $ 5,044 $ 4,721 $ 10,095 $ 9,450 Depreciation and amortization Domestic $ 14,937 14,550 29,595 28,993 International 1,437 1,335 2,805 2,717 Total $ 16,374 $ 15,885 $ 32,400 $ 31,710 Equity in net income (loss) of unconsolidated affiliates Domestic $ 251 114 404 114 International (313 ) (306 ) (1,128 ) (632 ) Total $ (62 ) $ (192 ) $ (724 ) $ (518 ) Capital expenditures Domestic $ 7,869 6,926 14,788 17,864 International 295 1,493 808 3,697 Total $ 8,164 $ 8,419 $ 15,596 $ 21,561 The following sets forth certain additional financial information attributable to our reporting segments as of September 30, 2014, and March 31, 2014, respectively: September 30, March 31, Investment in unconsolidated affiliates Domestic $ 8,623 $ 5,202 International 19,782 18,422 Total $ 28,405 $ 23,624 Total identifiable assets Domestic $ 962,465 $ 889,263 International 121,153 113,612 Eliminations (15,458 ) (13,308 ) Total $ 1,068,160 $ 989,567 Reconciliation of Segment EBITDA and Segment Adjusted EBITDA to Net Income Three Months Ended September 30, 2014 2013 (Amounts in thousands) Domestic International Domestic International Net income $ 17,603 $ 1,394 $ 12,263 $ 4,394 Depreciation and amortization 14,937 1,437 14,550 1,335 Interest expense 5,020 24 4,667 54 Income tax expense 10,897 (1,971 ) 9,778 (850 ) Segment EBITDA 48,457 884 41,258 4,933 Derivative fair value adjustment 67 — 319 — Foreign currency transaction losses — (205 ) — (181 ) Loss on disposal of assets or businesses 251 30 186 18 Unconsolidated affiliates interest, tax, depreciation and amortization (a) 291 587 1 458 Contingent consideration remeasurement 20 — 40 — Stock-based compensation 2,131 — 980 — ESOP deferred compensation 2,687 — 2,506 — Segment Adjusted EBITDA $ 53,904 $ 1,296 $ 45,290 $ 5,228 (a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture, our BaySaver Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. Reconciliation of Segment EBITDA and Segment Adjusted EBITDA to Net Income Six Months Ended September 30, 2014 2013 (Amounts in thousands) Domestic International Domestic International Net income $ 25,446 $ 2,992 $ 24,097 $ 7,109 Depreciation and amortization 29,595 2,805 28,993 2,717 Interest expense 10,062 33 9,360 90 Income tax expense 18,311 (1,492 ) 18,369 (230 ) Segment EBITDA 83,414 4,338 80,819 9,686 Derivative fair value adjustment 163 — 238 — Foreign currency transaction losses — (75 ) — (87 ) Loss (gain) on disposal of assets or businesses 311 34 (4,546 ) 14 Unconsolidated affiliates interest, tax, depreciation and amortization (a) 540 1,135 2 955 Contingent consideration remeasurement 2 — 129 — Stock-based compensation 4,377 — 1,640 — ESOP deferred compensation 5,374 — 5,026 — Transaction costs (b) 715 — 118 — Segment Adjusted EBITDA $ 94,896 $ 5,432 $ 83,426 $ 10,568 (a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture, our BaySaver Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. (b) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our debt refinancing and completion of the IPO.

Subsequent Events

Subsequent Events	6 Months Ended
	Sep. 30, 2014
Subsequent Events [Abstract]
Subsequent Events	21. SUBSEQUENT EVENTS We evaluated subsequent events through November 10, 2014, the date these condensed consolidated financial statements were originally available to be issued.

Background and Summary of Sig30

Background and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The Company prepares its condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The Condensed Consolidated Balance Sheet as of March 31, 2014 was derived from audited financial statements. In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, of a normal recurring nature, in addition to the restatement adjustments described in Note 2. Restatement of Previously Issued Financial Statements, necessary to present fairly its financial position as of September 30, 2014 and the results of operations for the three and six months ended September 30, 2014 and 2013 and cash flows for the six months ended September 30, 2014 and 2013. The interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements, including the notes thereto, filed in our Annual Report on Form 10-K for the year ended March 31, 2015, filed concurrently with this Form 10-Q/A.
Principles of Consolidation	Principles of Consolidation Our condensed consolidated financial statements include the Company, our wholly-owned subsidiaries, our majority-owned subsidiaries, including ADS Mexicana, S.A. de C.V. (together with its affiliate ADS Corporativo, S.A. de C.V., “ADS Mexicana”), and variable interest entities (“VIEs”) of which we are the primary beneficiary. We use the equity method of accounting for equity investments where we exercise significant influence but do not hold a controlling financial interest. Such investments are recorded in Other assets in our Condensed Consolidated Balance Sheets and the related equity earnings from these investments are included in Equity in net loss of unconsolidated affiliates in our Condensed Consolidated Statements of Operations. All intercompany balances and transactions have been eliminated in consolidation.
Estimates	Estimates The preparation of our condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingencies and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Significant estimates include, but are not limited to, our allowance for doubtful accounts, inventory, useful lives of our property, plant and equipment and amortizing intangible assets, determination of the proper accounting for leases, accounting for investments, evaluation of goodwill, intangible assets and other long-lived assets for impairment, accounting for stock-based compensation and our ESOP, valuation of our Redeemable common stock and Redeemable convertible preferred stock, determination of allowances for sales returns, rebates and discounts, determination of the valuation allowance, if any, on deferred tax assets, and reserves for uncertain tax positions. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Management believes the accounting estimates are appropriate and reasonably determined; however, due to the inherent uncertainties in making these estimates, actual results could differ from those estimates.
Property, Plant and Equipment and Depreciation Method	Property, Plant and Equipment and Depreciation Method Property, plant and equipment are recorded at cost less accumulated depreciation, with the exception of assets acquired through acquisitions, which are initially recorded at fair value. Equipment acquired under capital lease is recorded at the lower of fair market value or the present value of the future minimum lease payments. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings 40 Machinery and equipment 3 – 15 Leasehold improvements Shorter of useful life Costs of additions and major improvements are capitalized, whereas maintenance and repairs that do not improve or extend the life of the asset are charged to expense as incurred. When assets are retired or disposed, the cost and related accumulated depreciation are removed from the asset accounts and any resulting gain or loss is reflected in Loss (gain) on disposal of assets or businesses in our Condensed Consolidated Statements of Operations. Construction in progress is also recorded at cost and includes capitalized interest, capitalized payroll costs and related costs such as taxes and other fringe benefits. Interest capitalized was $177 and $316 during the three and six months ended September 30, 2014, respectively, and $246, and $410 during the three and six months ended September 30, 2013, respectively.
Leases	Leases Leases are reviewed for capital or operating classification at their inception. The Company uses the lower of the rate implicit in the lease or its incremental borrowing rate in the assessment of lease classification and assumes the initial lease term includes cancellable and renewal periods that are reasonably assured. For leases classified as capital leases at lease inception, we record a capital lease asset and lease financing obligation equal to the lesser of the present value of the minimum lease payments or the fair market value of the leased asset. The capital lease asset is recorded in Property, plant and equipment, net and amortized to its expected residual value at the end of the lease term using the straight-line method, and the lease financing obligation is amortized using the effective interest method over the lease term with the rental payments being allocated to principal and interest. For leases classified as operating leases, we record rent expense over the lease term using the straight-line method.

Background and Summary of Sig31

Background and Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]
Estimated Useful Lives of Related Assets	Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings 40 Machinery and equipment 3 – 15 Leasehold improvements Shorter of useful life

Restatement of Previously Iss32

Restatement of Previously Issued Financial Statements (Tables)	6 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]
Schedule of Impact on Condensed Consolidated Financial Statements	The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of operations for the three months ended September 30, 2014 and 2013 is as follows: Three Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 364,724 $ — $ — $ — $ 1,856 $ 134 $ 366,714 Cost of goods sold 282,282 531 11,665 16 1,815 642 296,951 Gross profit 82,442 (531 ) (11,665 ) (16 ) 41 (508 ) 69,763 Operating expenses: Selling 19,762 281 (24 ) 143 162 (84 ) 20,240 General and administrative 18,879 (18 ) (4,574 ) 75 (477 ) (42 ) 13,843 Loss on disposal of assets or businesses — 23 — 258 — — 281 Intangible amortization 2,638 — — (28 ) — — 2,610 Income from operations 41,163 (817 ) (7,067 ) (464 ) 356 (382 ) 32,789 Other expense: Interest expense 4,338 706 — — — — 5,044 Other miscellaneous income, net (7 ) — — (16 ) (217 ) — (240 ) Income before income taxes 36,832 (1,523 ) (7,067 ) (448 ) 573 (382 ) 27,985 Income tax expense 14,062 — — — — (5,136 ) 8,926 Equity in net loss of unconsolidated affiliates 2 — — — — 60 62 Net income 22,768 (1,523 ) (7,067 ) (448 ) 573 4,694 18,997 Less net income attributable to noncontrolling interest 378 — — — 437 1,338 2,153 Net income attributable to ADS 22,390 (1,523 ) (7,067 ) (448 ) 136 3,356 16,844 Change in fair value of Redeemable convertible preferred stock 7,319 — — — — — 7,319 Dividends to Redeemable convertible preferred stockholders (37 ) — — — — — (37 ) Dividends paid to unvested restricted stockholders — — — — — — — Net income available to common stockholders and participating securities 29,672 (1,523 ) (7,067 ) (448 ) 136 3,356 24,126 Undistributed income allocated to participating securities (3,404 ) 175 811 51 (16 ) (385 ) (2,768 ) Net income available to common stockholders $ 26,268 $ (1,348 ) $ (6,256 ) $ (397 ) $ 120 $ 2,971 $ 21,358 Weighted average common shares outstanding: Basic 51,518 51,518 Diluted 56,463 56,463 Net income per share: Basic $ 0.51 $ 0.41 Diluted $ 0.51 $ 0.41 Three Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 333,240 $ — $ — $ — $ 452 $ (965 ) $ 332,727 Cost of goods sold 260,021 (623 ) 6,690 (40 ) 377 714 267,139 Gross profit 73,219 623 (6,690 ) 40 75 (1,679 ) 65,588 Operating expenses: Selling 18,166 (127 ) (87 ) 179 — 504 18,635 General and administrative 17,917 (104 ) (3,948 ) 101 (455 ) 144 13,655 Loss on disposal of assets or businesses — 4 — 200 — — 204 Intangible amortization 2,861 — — (241 ) — — 2,620 Income from operations 34,275 850 (2,655 ) (199 ) 530 (2,327 ) 30,474 Other expense: Interest expense 3,866 855 — — — — 4,721 Other miscellaneous expense (income), net 287 — — (27 ) (284 ) — (24 ) Income before income taxes 30,122 (5 ) (2,655 ) (172 ) 814 (2,327 ) 25,777 Income tax expense 12,242 — — — — (3,314 ) 8,928 Equity in net loss of unconsolidated affiliates 97 — — — — 95 192 Net income 17,783 (5 ) (2,655 ) (172 ) 814 892 16,657 Less net income attributable to noncontrolling interest 461 — — — 513 943 1,917 Net income attributable to ADS 17,322 (5 ) (2,655 ) (172 ) 301 (51 ) 14,740 Change in fair value of Redeemable convertible preferred stock (3,186 ) — — — — — (3,186 ) Dividends to Redeemable convertible preferred stockholders (214 ) — — — — — (214 ) Dividends paid to unvested restricted stockholders (8 ) — — — — — (8 ) Net income available to common stockholders and participating securities 13,914 (5 ) (2,655 ) (172 ) 301 (51 ) 11,332 Undistributed income allocated to participating securities (1,536 ) 1 320 21 (36 ) 27 (1,203 ) Net income available to common stockholders $ 12,378 $ (4 ) $ (2,335 ) $ (151 ) $ 265 $ (24 ) $ 10,129 Weighted average common shares outstanding: Basic 47,250 47,250 Diluted 47,579 47,579 Net income per share: Basic $ 0.26 $ 0.21 Diluted $ 0.26 $ 0.21 Cash dividends declared per share $ 0.03 $ 0.03 The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of operations for the six months ended September 30, 2014 and 2013 is as follows: Six Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 693,021 $ — $ — $ — $ 1,850 $ (1,723 ) $ 693,148 Cost of goods sold 538,546 171 21,120 67 2,349 274 562,527 Gross profit 154,475 (171 ) (21,120 ) (67 ) (499 ) (1,997 ) 130,621 Operating expenses: Selling 39,008 171 129 370 49 65 39,792 General and administrative 39,411 (98 ) (8,488 ) 198 (1,015 ) (367 ) 29,641 Loss on disposal of assets or businesses — 74 — 271 — — 345 Intangible amortization 5,279 — — (56 ) — — 5,223 Income from operations 70,777 (318 ) (12,761 ) (850 ) 467 (1,695 ) 55,620 Other expense: Interest expense 8,953 1,142 — — — — 10,095 Other miscellaneous expense (income), net 7 — — (33 ) (432 ) 2 (456 ) Income before income taxes 61,817 (1,460 ) (12,761 ) (817 ) 899 (1,697 ) 45,981 Income tax expense 23,757 — — — — (6,938 ) 16,819 Equity in net loss of unconsolidated affiliates 623 — — — — 101 724 Net income 37,437 (1,460 ) (12,761 ) (817 ) 899 5,140 28,438 Less net income attributable to noncontrolling interest 806 — — — 664 1,558 3,028 Net income attributable to ADS 36,631 (1,460 ) (12,761 ) (817 ) 235 3,582 25,410 Change in fair value of Redeemable convertible preferred stock (11,054 ) — — — — (11,054 ) Dividends to Redeemable convertible preferred stockholders (75 ) — — — — (75 ) Dividends paid to unvested restricted stockholders — — — — — — Net income available to common stockholders and participating securities 25,502 (1,460 ) (12,761 ) (817 ) 235 3,582 14,281 Undistributed income allocated to participating securities (3,040 ) 174 1,521 97 (28 ) (426 ) (1,702 ) Net income available to common stockholders $ 22,462 $ (1,286 ) $ (11,240 ) $ (720 ) $ 207 $ 3,156 $ 12,579 Weighted average common shares outstanding: Basic 49,538 49,538 Diluted 52,198 52,198 Net income per share: Basic $ 0.45 $ 0.25 Diluted $ 0.45 $ 0.25 Cash dividends declared per share $ — $ — Six Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands, except Leases Inventory Long-Lived Assets ADS Income Taxes and Net sales $ 626,342 $ — $ — $ — $ 991 $ (2,027 ) $ 625,306 Cost of goods sold 487,120 (784 ) 15,038 (497 ) 1,508 983 503,368 Gross profit 139,222 784 (15,038 ) 497 (517 ) (3,010 ) 121,938 Operating expenses: Selling 35,843 (272 ) 151 193 (1,456 ) 696 35,155 General and administrative 35,576 (186 ) (7,933 ) 106 (910 ) 89 26,742 Gain on disposal of assets or businesses (4,848 ) 140 — 176 — — (4,532 ) Intangible amortization 5,722 — — (482 ) — — 5,240 Income from operations 66,929 1,102 (7,256 ) 504 1,849 (3,795 ) 59,333 Other expense: Interest expense 7,967 1,483 — — — — 9,450 Other miscellaneous expense, net 816 — — (50 ) (746 ) — 20 Income before income taxes 58,146 (381 ) (7,256 ) 554 2,595 (3,795 ) 49,863 Income tax expense 23,308 — — — — (5,169 ) 18,139 Equity in net loss of unconsolidated affiliates 345 — — — — 173 518 Net income 34,493 (381 ) (7,256 ) 554 2,595 1,201 31,206 Less net income attributable to noncontrolling interest 875 — — — 1,482 1,135 3,492 Net income attributable to ADS 33,618 (381 ) (7,256 ) 554 1,113 66 27,714 Change in fair value of Redeemable convertible preferred stock (4,764 ) — — — — (4,764 ) Dividends to Redeemable convertible preferred stockholders (430 ) — — — — (430 ) Dividends paid to unvested restricted stockholders (16 ) — — — — (16 ) Net income available to common stockholders and participating securities 28,408 (381 ) (7,256 ) 554 1,113 66 22,504 Undistributed income allocated to participating securities (3,124 ) 46 882 (67 ) (135 ) (8 ) (2,406 ) Net income available to common stockholders $ 25,284 $ (335 ) $ (6,374 ) $ 487 $ 978 $ 58 $ 20,098 Weighted average common shares outstanding: Basic 47,220 47,220 Diluted 47,634 47,634 Net income per share: Basic $ 0.54 $ 0.43 Diluted $ 0.53 $ 0.42 Cash dividends declared per share $ 0.06 $ 0.06 Impact on Condensed Consolidated Statements of Comprehensive Income The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of comprehensive income for the three months ended September 30, 2014 and 2013 is as follows: Three Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 22,768 $ (1,523 ) $ (7,067 ) $ (448 ) $ 573 $ 4,694 $ 18,997 Comprehensive income 19,198 (1,523 ) (7,067 ) (456 ) 560 4,694 15,406 Less other comprehensive loss attributable to noncontrolling interest, net of tax (759 ) — — — (2 ) — (761 ) Less net income attributable to noncontrolling interest 378 — — — 437 1,338 2,153 Total comprehensive income attributable to ADS $ 19,579 $ (1,523 ) $ (7,067 ) $ (456 ) $ 125 $ 3,356 $ 14,014 Three Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 17,783 $ (5 ) $ (2,655 ) $ (172 ) $ 814 $ 892 $ 16,657 Comprehensive income 19,193 (5 ) (2,655 ) (174 ) 810 893 18,062 Less other comprehensive loss attributable to noncontrolling interest, net of tax (297 ) — — — 3 1 (293 ) Less net income attributable to noncontrolling interest 461 — — — 513 943 1,917 Total comprehensive income attributable to ADS $ 19,029 $ (5 ) $ (2,655 ) $ (174 ) $ 294 $ (51 ) $ 16,438 The net effect of the restatement described above on the Company’s previously reported condensed consolidated statements of comprehensive income for the six months ended September 30, 2014 and 2013 is as follows: Six Months Ended September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 37,437 $ (1,460 ) $ (12,761 ) $ (817 ) $ 899 $ 5,140 $ 28,438 Comprehensive income 34,019 (1,460 ) (12,761 ) (832 ) 900 5,140 25,006 Less other comprehensive loss attributable to noncontrolling interest, net of tax (912 ) — — — 5 — (907 ) Less net income attributable to noncontrolling interest 806 — — — 664 1,558 3,028 Total comprehensive income attributable to ADS $ 34,125 $ (1,460 ) $ (12,761 ) $ (832 ) $ 231 $ 3,582 $ 22,885 Six Months Ended September 30, 2013 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Income Taxes and Net income $ 34,493 $ (381 ) $ (7,256 ) $ 554 $ 2,595 $ 1,201 $ 31,206 Comprehensive income 31,440 (381 ) (7,256 ) 550 2,577 1,203 28,133 Less other comprehensive loss attributable to noncontrolling interest, net of tax (1,270 ) — — — 2 2 (1,266 ) Less net income attributable to noncontrolling interest 875 — — — 1,482 1,135 3,492 Total comprehensive income attributable to ADS $ 31,835 $ (381 ) $ (7,256 ) $ 550 $ 1,093 $ 66 $ 25,907 Impact on Condensed Consolidated Balance Sheets The net effect of the restatement described above on the Company’s previously reported condensed consolidated balance sheets as of September 30, 2014 and March 31, 2014 is as follows: September 30, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Mexicana Income Taxes Other ASSETS Cash $ 6,581 $ — $ — $ — $ — $ — $ 6,581 Receivables, net 248,120 — — — (1,545 ) (529 ) 246,046 Inventories 247,368 (275 ) (17,158 ) (65 ) 1,093 1,299 232,262 Deferred income taxes and other current assets 12,848 — — 325 — 564 13,737 Property, plant and equipment, net 288,170 76,327 — (4,833 ) — 78 359,742 Goodwill 86,280 — — 1,805 — (85 ) 88,000 Intangible assets, net 60,266 — — (6,134 ) — — 54,132 Other assets 68,591 (9 ) — (7,413 ) — 6,491 67,660 Total assets $ 1,018,224 $ 76,043 $ (17,158 ) $ (16,315 ) $ (452 ) $ 7,818 $ 1,068,160 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY (DEFICIT) Current maturities of debt obligations $ 11,148 $ — $ — $ — $ — $ — $ 11,148 Current maturities of capital lease obligations — 12,225 — — — — 12,225 Accounts payable 113,530 — 577 — — 1,609 115,716 Other accrued liabilities 43,508 516 — — — 6,216 50,240 Accrued income taxes 22,360 — — — — (2,662 ) 19,698 Long-term debt obligation 386,435 — — — — — 386,435 Long-term capital lease obligation — 49,237 — — — — 49,237 Deferred tax liabilities 64,398 — — — — (3,997 ) 60,401 Other liabilities 14,263 65 — — — 12,991 27,319 Total liabilities 655,642 62,043 577 — — 14,157 732,419 Mezzanine equity 109,277 — — — — 2,322 111,599 Common stock 12,393 — — — — — 12,393 Paid-in capital 675,183 — — — — 14,797 689,980 Common stock in treasury, at cost (447,674 ) — — — — — (447,674 ) Accumulated other comprehensive loss (8,483 ) — — (25 ) (545 ) (302 ) (9,355 ) Retained earnings (deficit) — 14,000 (17,735 ) (16,290 ) 126 (21,001 ) (40,900 ) Noncontrolling interest in subsidiaries 21,886 — — — (33 ) (2,155 ) 19,698 Total liabilities, mezzanine equity and stockholders’ equity (deficit) $ 1,018,224 $ 76,043 $ (17,158 ) $ (16,315 ) $ (452 ) $ 7,818 $ 1,068,160 March 31, 2014 As Previously Adjustments As Restated (Amounts in thousands) Leases Inventory Long-Lived Assets ADS Mexicana Income Taxes Other ASSETS Cash $ 3,931 $ — $ — $ — $ — $ — $ 3,931 Receivables, net 150,713 — — — (3,404 ) 962 148,271 Inventories 260,300 (86 ) (4,270 ) (130 ) 2,475 1,602 259,891 Deferred income taxes and other current assets 13,555 — — 343 — 567 14,465 Property, plant and equipment, net 292,082 62,903 — (4,663 ) — 29 350,351 Goodwill 86,297 — — 1,805 — (85 ) 88,017 Intangible assets, net 66,184 — — (6,991 ) — 1 59,194 Other assets 64,533 (15 ) — (5,759 ) — 6,688 65,447 Total assets $ 937,595 $ 62,802 $ (4,270 ) $ (15,395 ) $ (929 ) $ 9,764 $ 989,567 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ DEFICIT Current maturities of debt obligations $ 11,153 $ — $ — $ — $ — $ — $ 11,153 Current maturities of capital lease obligations — 12,364 — — — — 12,364 Accounts payable 108,111 — 704 88 — 2,069 110,972 Other accrued liabilities 37,956 530 — — — 4,599 43,085 Accrued income taxes 7,372 — — — — 608 7,980 Long-term debt obligation 442,895 — — — — — 442,895 Long-term capital lease obligation — 34,366 — — — — 34,366 Deferred tax liabilities 69,169 — — — — (2,836 ) 66,333 Other liabilities 15,324 82 — — — 16,764 32,170 Total liabilities 691,980 47,342 704 88 — 21,204 761,318 Mezzanine equity 642,951 — — — — — 642,951 Common stock 11,957 — — — — — 11,957 Paid-in capital 22,547 — — — — (10,109 ) 12,438 Common stock in treasury, at cost (448,439 ) — — — — — (448,439 ) Accumulated other comprehensive loss (5,977 ) — — (9 ) (541 ) (303 ) (6,830 ) Retained earnings (deficit) — 15,460 (4,974 ) (15,474 ) (108 ) 2,684 (2,412 ) Noncontrolling interest in subsidiaries 22,576 — — — (280 ) (3,712 ) 18,584 Total liabilities, mezzanine equity and stockholders’ deficit $ 937,595 $ 62,802 $ (4,270 ) $ (15,395 ) $ (929 ) $ 9,764 $ 989,567 The net effect of the restatement on the Company’s previously reported condensed consolidated statements of cash flows for the six months ended September 30, 2014 and 2013 is as follows: For the Six Months Ended September 30, 2014 (Amounts in thousands) As Previously Adjustments As Restated Net cash provided by operating activities $ 10,807 $ 4,099 $ 14,906 Net cash used in investing activities (25,742 ) 1,770 (23,972 ) Net cash provided by financing activities 17,836 (5,890 ) 11,946 For the Six Months Ended September 30, 2013 (Amounts in thousands) As Previously Adjustments As Restated Net cash provided by operating activities $ 3,283 $ 5,102 $ 8,385 Net cash used in investing activities (23,036 ) 1,512 (21,524 ) Net cash provided by financing activities 20,428 (6,623 ) 13,805
Cumulative Effect of Prior Period Adjustments	The following table presents the impact of the restatement described above to the Company’s beginning stockholders’ equity (deficit) balances, cumulatively to reflect adjustments booked to all periods prior to April 1, 2013: (Amounts in thousands) Common Paid in Common Accumulated Retained Total ADS Non-controlling Total Stockholders’ equity (deficit), April 1, 2013 (as previously reported) $ 11,957 $ 41,152 $ (448,571 ) $ (856 ) $ 87,331 $ (308,987 ) $ 23,265 $ (285,722 ) Adjustments from: — — — — — — — — Lease Accounting, before income tax effect — — — — 17,883 17,883 — 17,883 Inventory, before income tax effect — — — — (3,490 ) (3,490 ) — (3,490 ) Long-Lived Assets, before income tax effect — — — 1 (15,780 ) (15,779 ) — (15,779 ) ADS Mexicana, before income tax effect — — — (496 ) (586 ) (1,082 ) (649 ) (1,731 ) All other non-income tax adjustments — (1,126 ) — 270 (14 ) (870 ) (4,072 ) (4,942 ) Income tax adjustments — — — — (6,142 ) (6,142 ) — (6,142 ) Total adjustments — (1,126 ) — (225 ) (8,129 ) (9,480 ) (4,721 ) (14,201 ) Stockholders’ equity (deficit), April 1, 2013 (As Restated) $ 11,957 $ 40,026 $ (448,571 ) $ (1,081 ) $ 79,202 $ (318,467 ) $ 18,544 $ (299,923 )

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant, Equipment	Property, plant and equipment, net as of September 30, 2014 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Land, buildings and improvements $ 161,415 $ 158,588 Machinery and equipment 664,574 640,529 Construction in Progress 15,597 11,003 Total cost 841,586 810,120 Less accumulated depreciation (481,844 ) (459,769 ) Property, plant and equipment - net $ 359,742 $ 350,351
Depreciation Expense on Property, Plant and Equipment	The following table sets forth depreciation expense for the three and six months ended September 30, 2014 and 2013, respectively: Three Months Ended Six Months Ended (Amounts in thousands) 2014 2013 2014 2013 Depreciation expense $ 12,533 $ 12,107 $ 24,790 $ 24,188

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Sep. 30, 2014
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories as of September 30, 2014 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, March 31, Raw materials $ 56,859 $ 51,785 Finished goods 175,403 208,106 Total inventory $ 232,262 $ 259,891

Leases (Tables)

Leases (Tables)	6 Months Ended
	Sep. 30, 2014
Leases [Abstract]
Summary of Leased Assets Accounted for Capital Leases and Included in Property, Plant and Equipment, Net	Leased assets accounted for as capital leases and included in Property, plant and equipment, net consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Buildings and improvements $ 7,163 $ 7,716 Machinery and equipment 165,899 145,980 Total cost 173,062 153,696 Less accumulated amortization (95,858 ) (89,599 ) Leased assets in Property, plant and equipment, net $ 77,204 $ 64,097
Schedule of Future Minimum Lease Payments under Capital Leases with Present Value	The following is a schedule by year of future minimum lease payments under capital leases together with the present value of the net minimum lease payments as of September 30, 2014: (Amounts in thousands) September 30, 2015 $ 15,157 September 30, 2016 15,115 September 30, 2017 13,181 September 30, 2018 9,913 September 30, 2019 7,517 Thereafter 9,407 Total minimum lease payments (a) 70,290 Less: amount representing interest (b) 8,828 Present value of net minimum lease payments $ 61,462 Lease obligation – Current $ 12,225 Lease obligation – Long-term 49,237 Total lease obligation $ 61,462 (a) Excludes contingent rentals which may be paid. Contingent rentals amounted to $375 and $10 for the six months ended September 30, 2014 and 2013, respectively. (b) Amount necessary to reduce minimum lease payments to present value calculated at the lower of the rate implicit in the lease or the Company’s incremental borrowing rate at lease inception.
Summary of Future Minimum Rental Commitments under Operating Leases	Future minimum rental commitments under operating leases as of September 30, 2014, are summarized below (amounts in thousands): Twelve Months Ended September 30, Thereafter 2015 2016 2017 2018 2019 Future operating lease payments $ 2,842 $ 2,245 $ 1,224 $ 638 $ 416 $ 2,245

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill by Reportable Segment	The carrying amount of goodwill by reportable segment is as follows: (Amounts in thousands) Domestic International Total Balance at March 31, 2014 $ 87,507 $ 510 $ 88,017 Currency translation — (17 ) (17 ) Balance at September 30, 2014 $ 87,507 $ 493 $ 88,000
Summary of Intangible Assets	Intangible assets as of September 30, 2014 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Gross Accumulated Net Gross Accumulated Net Definite-lived intangible assets Developed technology $ 40,579 $ (24,497 ) $ 16,082 $ 40,579 $ (22,588 ) $ 17,991 Customer relationships 38,252 (24,244 ) 14,008 38,252 (21,793 ) 16,459 Patents 6,338 (3,235 ) 3,103 6,175 (2,921 ) 3,254 Non-compete and other contractual agreements 1,088 (667 ) 421 1,088 (491 ) 597 Trademarks and tradenames 11,157 (2,627 ) 8,530 11,157 (2,254 ) 8,903 Total definite-lived intangible assets 97,414 (55,270 ) 42,144 97,251 (50,047 ) 47,204 Indefinite-lived intangible assets Trademarks 11,988 — 11,988 11,990 — 11,990 Total intangible assets $ 109,402 $ (55,270 ) $ 54,132 $ 109,241 $ (50,047 ) $ 59,194

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Carried at Fair Value	The assets and liabilities carried at fair value as of September 30, 2014 and March 31, 2014 were as follows: September 30, 2014 (Amounts in thousands) Total Level 1 Level 2 Level 3 Liabilities: Derivative liability - interest rate swaps $ 639 $ — $ 639 $ — Derivative liability - diesel fuel contracts 8 — 8 — Derivative liability - propylene swaps 491 — 491 — Contingent consideration for acquisitions 2,526 — — 2,526 Total liabilities at fair value on a recurring basis $ 3,664 $ — $ 1,138 $ 2,526 March 31, 2014 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets - propylene swaps $ 27 $ — $ 27 $ — Total assets at fair value on a recurring basis $ 27 $ — $ 27 $ — Liabilities & Mezzanine Equity: Derivative liability - interest rate swaps $ 1,001 $ — $ 1,001 $ — Contingent consideration for acquisitions 2,898 — — 2,898 Redeemable common stock 549,119 — — 549,119 Redeemable convertible preferred stock 291,720 — — 291,720 Deferred compensation - unearned ESOP shares (197,888 ) — — (197,888 ) Total liabilities & mezzanine equity at fair value on a recurring basis $ 646,850 $ — $ 1,001 $ 645,849
Summary of Changes in Fair Value of Recurring Fair Value Measurements Using Unobservable Inputs	Changes in the fair value of recurring fair value measurements using significant unobservable inputs (Level 3) for the three and six months ended September 30, 2014 and 2013 were as follows: Three Months Ended September 30, 2014 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at June 30, 2014 $ 2,697 $ 659,431 $ 348,898 $ (233,106 ) $ 777,920 Allocation of ESOP shares to participants — — — $ 804 $ 804 Change in fair value 20 (44,391 ) (22,275 ) 14,956 (51,690 ) Payments of contingent consideration liability (191 ) — — — (191 ) Transfer from Level 3 — (615,040 ) (326,623 ) 217,346 (724,317 ) Balance at September 30, 2014 $ 2,526 $ — $ — $ — $ 2,526 Three Months Ended September 30, 2013 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at June 30, 2013 $ 2,571 $ 532,836 $ 286,828 $ (197,310 ) $ 624,925 Allocation of ESOP shares to participants — — — 3,122 3,122 Change in fair value 40 20,353 10,835 (7,649 ) 23,579 Payments of contingent consideration liability (144 ) — — — (144 ) Redemption of Redeemable convertible preferred stock — — (2,089 ) — (2,089 ) Balance at September 30, 2013 $ 2,467 $ 553,189 $ 295,574 $ (201,837 ) $ 649,393 Six Months Ended September 30, 2014 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at March 31, 2014 $ 2,898 $ 549,119 $ 291,720 $ (197,888 ) $ 645,849 Allocation of ESOP shares to participants — — — $ 4,391 $ 4,391 Change in fair value 2 65,921 34,903 (23,849 ) 76,977 Payments of contingent consideration liability (374 ) — — — (374 ) Transfer from Level 3 — (615,040 ) (326,623 ) 217,346 (724,317 ) Balance at September 30, 2014 $ 2,526 $ — $ — $ — $ 2,526 Six Months Ended September 30, 2013 (amounts in thousands) Contingent consideration Redeemable Redeemable Deferred compensation Total Balance at March 31, 2013 $ 2,679 $ 522,276 $ 282,547 $ (196,477 ) $ 611,025 Allocation of ESOP shares to participants — — — 6,049 6,049 Change in fair value 129 30,528 16,173 (11,409 ) 35,421 Payments of contingent consideration liability (341 ) — — — (341 ) Redemption of Redeemable convertible preferred stock — — (3,146 ) — (3,146 ) Transfer to Level 3 — 385 — — 385 Balance at September 30, 2013 $ 2,467 $ 553,189 $ 295,574 $ (201,837 ) $ 649,393

Ads Mexicana (Tables)

Ads Mexicana (Tables)	6 Months Ended
	Sep. 30, 2014
Equity Method Investments and Joint Ventures [Abstract]
Assets and Liabilities of Ads Mexicana	The table below includes the assets and liabilities of ADS Mexicana that are consolidated as of September 30, 2014 and March 31, 2014. The balances exclude intercompany transactions that are eliminated upon consolidation. (Amounts in thousands) September 30, 2014 March 31, 2014 Assets Current assets $ 34,534 $ 32,877 Property, plant and equipment, net 20,542 21,633 Other noncurrent assets 3,013 3,378 Total assets $ 58,089 $ 57,888 Liabilities Current liabilities $ 11,019 $ 11,595 Noncurrent liabilities 6,539 7,020 Total liabilities $ 17,558 $ 18,615

Investment in Unconsolidated 39

Investment in Unconsolidated Affiliates (Tables)	6 Months Ended
	Sep. 30, 2014
BaySaver [Member]
Summarized Financial Data of Joint Ventures	Summarized financial data as of September 30 and March 31, 2014 for the BaySaver joint venture is as follows: (Amounts in thousands) September 30, 2014 March 31, 2014 Investment in BaySaver $ 5,217 $ 5,202 Receivable from BaySaver 216 6
Tigre-ADS USA [Member]
Summarized Financial Data of Joint Ventures	Summarized financial data as of September 30, 2014 for the Tigre-ADS USA joint venture is as follows: (Amounts in thousands) As reported Investment in Tigre-ADS USA $ 3,406 Receivable from Tigre-ADS USA 22
South American Joint Venture [Member]
Summarized Financial Data of Joint Ventures	Summarized financial data as of September 30 and March 31, 2014 for the South American Joint Venture is as follows: (Amounts in thousands) September 30, 2014 March 31, 2014 Investment in South American Joint Venture $ 19,782 $ 18,422 Receivable from South American Joint Venture 4,660 8,313

Debt (Tables)

Debt (Tables)	6 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]
Components of Debt	Long-term debt as of September 30 and March 31, 2014 consisted of the following: (Amounts in thousands) September 30, 2014 March 31, 2014 Bank Term Loans Revolving Credit Facility — ADS $ 193,800 $ 248,100 Revolving Credit Facility — ADS Mexicana 2,000 — Term note 95,000 97,500 Senior Notes payable 100,000 100,000 Mortgage notes payable 2,833 3,733 Industrial revenue bonds 3,950 4,715 Total 397,583 454,048 Current maturities (11,148 ) (11,153 ) Long-term debt obligation $ 386,435 $ 442,895

Derivative Transactions (Tables

Derivative Transactions (Tables)	6 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Fair Values for Various Derivatives	A summary of the fair values for the various derivatives at September 30, 2014 and March 31, 2014 is presented below: September 30, 2014 March 31, 2014 (Amounts in thousands) Asset Liability Asset Liability Interest rate swaps $ — $ (639 ) $ — $ (1,001 ) Diesel fuel option collars — (8 ) — — Propylene swaps — (491 ) 27 —

Accumulated Other Comprehensi42

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Sep. 30, 2014
Equity [Abstract]
Summary of Changes in Balances of Each Component of Accumulated Other Comprehensive Loss	The following table presents the changes in balances of each component of Accumulated other comprehensive loss (“AOCL”) for the period ending September 30: (Amounts in thousands) Currency Other Accumulated Balance at April 1, 2013 $ (1,085 ) $ 4 $ (1,081 ) Other comprehensive loss (1,810 ) 5 (1,805 ) Income tax expense (benefit) — (2 ) (2 ) Balance at September 30, 2013 $ (2,895 ) $ 7 $ (2,888 ) Balance at April 1, 2014 (6,838 ) 8 (6,830 ) Other comprehensive loss (2,525 ) — (2,525 ) Balance at September 30, 2014 $ (9,363 ) $ 8 $ (9,355 )

Stock-based Compensation (Table

Stock-based Compensation (Tables)	6 Months Ended
	Sep. 30, 2014
Schedule of Estimate Fair Value of Stock Options Granted	We estimate the fair value of stock options granted after April 1, 2006, using a Black-Scholes option-pricing model, with assumptions as follows: September 30, 2014 2013 Expected stock price volatility 40 % 44 % Risk-free interest rate 2.1 % 2.3 % Weighted-average expected option life (years) 8 8 Dividend yield 0.86 % 0.84 %
Summary of Unvested Restricted Stock Grants	The following table summarizes information about the unvested restricted stock grants as of September 30, 2014: Number Weighted Unvested at beginning of period 311 $ 12.40 Granted — — Vested 118 12.06 Forfeited 3 10.66 Unvested at end of period 190 $ 12.60
2000 Stock Option Plan [Member]
Schedule of Stock Option Transactions	The stock option transactions as of the six months ended September 30 are summarized as follows: 2014 2013 Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Outstanding at beginning of period 913 $ 9.48 4.1 1,333 $ 8.10 4.0 Issued 78 15.74 15 13.64 Exercised 78 7.36 94 7.77 Forfeited — — 17 10.77 Outstanding at end of period 913 10.20 4.3 1,237 8.19 3.7 Exercisable and vested at end of period 835 9.67 3.8 846 6.80 2.1 Unvested at end of period 78 15.74 9.9 391 11.16 7.1 Vested and expected to vest at end of period 901 $ 10.12 7.7 1,167 $ 8.03 3.5
Schedule of Nonvested Stock Option Grants	The following table summarizes information about the nonvested stock option grants as of the six months ended September 30, 2014: Number Weighted Unvested at beginning of period 428 $ 5.82 Granted 78 6.76 Vested 428 5.82 Forfeited — — Unvested at end of period 78 $ 6.76
2013 Stock Option Plan [Member]
Schedule of Stock Option Transactions	The stock option transactions as of the six months ended September 30, 2014 for the 2013 Stock Option Plan are summarized as follows: September 30, 2014 September 30, 2013 Number Weighted Exercise Price Weighted Number Weighted Weighted Outstanding at beginning of period 1,911 $ 13.64 9.4 — $ — — Issued – equity classified — — 1,440 13.64 — Issued – liability classified — — 518 13.64 — Exercised — — — 13.64 — Forfeited – equity classified — — 47 13.64 — Outstanding at end of period 1,911 13.64 8.9 1,911 13.64 9.9 Exercisable and vested at end of period 408 13.64 8.9 — — — Unvested at end of period 1,503 13.64 8.9 1,911 13.64 9.9 Vested and expected to vest at end of period 1,881 13.64 8.9 1,704 13.64 9.9 Fair value of options granted during the period — $ — $ 6.22 —
Schedule of Nonvested Stock Option Grants	The following table summarizes information about the nonvested stock option grants as of September 30, 2014: Number Weighted Unvested at beginning of period 1,911 $ 6.22 Granted — — Vested 408 13.64 Forfeited — — Unvested at end of period 1,503 $ 3.64
Non Employee Director Compensation Plan [Member]
Schedule of Nonvested Stock Option Grants	The following table summarizes information about the unvested Non-Employee Director compensation stock grants as of September 30, 2014: Number Weighted Unvested at beginning of period — $ — Granted 48 18.88 Vested — — Forfeited — — Unvested at end of period 48 $ —

Net Income Per Share (Tables)

Net Income Per Share (Tables)	6 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]
Summary of Net Income Per Share	The following table presents information necessary to calculate net income per share for the three and six months ended September 30, 2013 and 2014, as well as potentially dilutive securities excluded from the weighted average number of diluted common shares outstanding because their inclusion would have been anti-dilutive: Three Months Ended Six Months Ended (Amounts in thousands, except per share data) 2014 2013 2014 2013 Net income per share - Basic Net income attributable to ADS $ 16,844 $ 14,740 $ 25,410 $ 27,714 Adjustment for: Change in fair value of redeemable convertible preferred stock 7,319 (3,186 ) (11,054 ) (4,764 ) Dividends to redeemable convertible preferred stock (37 ) (214 ) (75 ) (430 ) Dividends paid to unvested restricted stockholders — (8 ) — (16 ) Net income available to common stockholders and participating securities 24,126 11,332 14,281 22,504 Undistributed income allocated to participating securities (2,768 ) (1,203 ) (1,702 ) (2,406 ) Net income available to common stockholders - Basic 21,358 10,129 12,579 20,098 Weighted average number of common shares outstanding - Basic 51,518 47,250 49,538 47,220 Net income per common share - Basic $ 0.41 $ 0.21 $ 0.25 $ 0.43 Net income per share - Diluted Net income available to common stockholders - Basic $ 21,358 $ 10,129 $ 12,579 $ 20,098 Undistributed income allocated to participating securities 1,952 — 601 — Net income available to common stockholders - Diluted 23,310 10,129 13,180 20,098 Weighted average number of common shares outstanding - Basic 51,518 47,250 49,538 47,220 Assumed exercise of preferred stock 4,714 — 2,382 — Assumed exercise of stock options 231 329 278 414 Weighted average number of common shares outstanding - Diluted 56,463 47,579 52,198 47,634 Net income per common share - Diluted $ 0.41 $ 0.21 $ 0.25 $ 0.42 Potentially dilutive securities excluded as anti-dilutive 22 38 57 63

Business Segments Information (

Business Segments Information (Tables)	6 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]
Schedule of Revenue from Reportable Segments by Product Type	The following table sets forth reportable segment information with respect to the amount of net sales contributed by each class of similar products of our consolidated gross profit for the three and six months ended September 30, 2014 and 2013, respectively: Three Months Ended Six Months Ended (Amounts in thousands) 2014 2013 2014 2013 Domestic Pipe $ 241,713 $ 223,099 $ 457,749 $ 411,179 Allied Products 78,063 72,008 151,652 138,455 Total domestic 319,776 295,107 609,401 549,634 International Pipe 38,218 30,496 68,149 60,600 Allied Products 8,720 7,124 15,598 15,072 Total international 46,938 37,620 83,747 75,672 Total net sales $ 366,714 $ 332,727 $ 693,148 $ 625,306
Schedule of Additional Financial Information Attributable to Reportable Segments	The following sets forth certain additional financial information attributable to our reportable segments for the three and six months ended September 30, 2014, and 2013, respectively: Three Months Ended Six Months Ended (Amounts in thousands) 2014 2013 2014 2013 Net sales Domestic $ 319,776 $ 295,107 $ 609,401 $ 549,634 International 46,938 37,620 83,747 75,672 Total $ 366,714 $ 332,727 $ 693,148 $ 625,306 Gross profit Domestic $ 65,574 58,073 119,641 107,804 International 4,189 7,515 10,980 14,134 Total $ 69,763 $ 65,588 $ 130,621 $ 121,938 Segment Adjusted EBITDA Domestic $ 53,904 45,290 94,896 83,426 International 1,296 5,228 5,432 10,568 Total $ 55,200 $ 50,518 $ 100,328 $ 93,994 Interest expense, net Domestic $ 5,020 4,667 10,062 9,360 International 24 54 33 90 Total $ 5,044 $ 4,721 $ 10,095 $ 9,450 Depreciation and amortization Domestic $ 14,937 14,550 29,595 28,993 International 1,437 1,335 2,805 2,717 Total $ 16,374 $ 15,885 $ 32,400 $ 31,710 Equity in net income (loss) of unconsolidated affiliates Domestic $ 251 114 404 114 International (313 ) (306 ) (1,128 ) (632 ) Total $ (62 ) $ (192 ) $ (724 ) $ (518 ) Capital expenditures Domestic $ 7,869 6,926 14,788 17,864 International 295 1,493 808 3,697 Total $ 8,164 $ 8,419 $ 15,596 $ 21,561 The following sets forth certain additional financial information attributable to our reporting segments as of September 30, 2014, and March 31, 2014, respectively: September 30, March 31, Investment in unconsolidated affiliates Domestic $ 8,623 $ 5,202 International 19,782 18,422 Total $ 28,405 $ 23,624 Total identifiable assets Domestic $ 962,465 $ 889,263 International 121,153 113,612 Eliminations (15,458 ) (13,308 ) Total $ 1,068,160 $ 989,567
Schedule of Reconciliation of Segment EBITDA and Segment Adjusted EBITDA to Net Income	Reconciliation of Segment EBITDA and Segment Adjusted EBITDA to Net Income Three Months Ended September 30, 2014 2013 (Amounts in thousands) Domestic International Domestic International Net income $ 17,603 $ 1,394 $ 12,263 $ 4,394 Depreciation and amortization 14,937 1,437 14,550 1,335 Interest expense 5,020 24 4,667 54 Income tax expense 10,897 (1,971 ) 9,778 (850 ) Segment EBITDA 48,457 884 41,258 4,933 Derivative fair value adjustment 67 — 319 — Foreign currency transaction losses — (205 ) — (181 ) Loss on disposal of assets or businesses 251 30 186 18 Unconsolidated affiliates interest, tax, depreciation and amortization (a) 291 587 1 458 Contingent consideration remeasurement 20 — 40 — Stock-based compensation 2,131 — 980 — ESOP deferred compensation 2,687 — 2,506 — Segment Adjusted EBITDA $ 53,904 $ 1,296 $ 45,290 $ 5,228 (a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture, our BaySaver Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. Reconciliation of Segment EBITDA and Segment Adjusted EBITDA to Net Income Six Months Ended September 30, 2014 2013 (Amounts in thousands) Domestic International Domestic International Net income $ 25,446 $ 2,992 $ 24,097 $ 7,109 Depreciation and amortization 29,595 2,805 28,993 2,717 Interest expense 10,062 33 9,360 90 Income tax expense 18,311 (1,492 ) 18,369 (230 ) Segment EBITDA 83,414 4,338 80,819 9,686 Derivative fair value adjustment 163 — 238 — Foreign currency transaction losses — (75 ) — (87 ) Loss (gain) on disposal of assets or businesses 311 34 (4,546 ) 14 Unconsolidated affiliates interest, tax, depreciation and amortization (a) 540 1,135 2 955 Contingent consideration remeasurement 2 — 129 — Stock-based compensation 4,377 — 1,640 — ESOP deferred compensation 5,374 — 5,026 — Transaction costs (b) 715 — 118 — Segment Adjusted EBITDA $ 94,896 $ 5,432 $ 83,426 $ 10,568 (a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture, our BaySaver Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. (b) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our debt refinancing and completion of the IPO.

Background and Summary of Sig46

Background and Summary of Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, shares in Thousands, $ in Thousands		Aug. 22, 2014$ / sharesshares	Jul. 25, 2014USD ($)$ / sharesshares	Jul. 11, 2014	Sep. 30, 2014USD ($)shares	Sep. 30, 2013USD ($)	Sep. 30, 2014USD ($)Segmentshares	Sep. 30, 2013USD ($)	Mar. 31, 2014shares
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | Segment							2
Common stock, shares issued	[1]				153,560		153,560		109,951
Common stock, shares outstanding	[1]				52,935		52,935		9,141
Net proceeds from initial public offering | $	[1]						$ 79,131
Interest capitalized | $					$ 177	$ 246	$ 316	$ 410
IPO [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Common and preferred stock conversion split ratio, description							4.707-for-one split
Common and preferred stock conversion split ratio				4.707
Additional shares issued		600	5,289
Common stock, shares issued			52,881
Common stock, shares outstanding			52,881
Net proceeds from initial public offering | $			$ 79,131
Underwriter discounts and commissions on initial public offering | $			$ 5,501
Share price | $ / shares		$ 16	$ 16
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Background and Summary of Sig47

Background and Summary of Significant Accounting Policies - Estimated Useful Lives of Related Assets (Detail)	6 Months Ended
	Sep. 30, 2014
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	Shorter of useful life or life of lease

Restatement of Previously Iss48

Restatement of Previously Issued Financial Statements - Schedule of Impact on Condensed Consolidated Statements of Operations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		Jun. 28, 2013	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	[1]		$ 366,714		$ 332,727		$ 693,148		$ 625,306
Cost of goods sold	[1]		296,951		267,139		562,527		503,368
Gross profit	[1]		69,763		65,588		130,621		121,938
Operating expenses:
Selling	[1]		20,240		18,635		39,792		35,155
General and administrative	[1]		13,843		13,655		29,641		26,742
Loss (gain) on disposal of assets or businesses		$ (4,848)	281	[1]	204	[1]	345	[1]	(4,532)	[1]
Intangible amortization	[1]		2,610		2,620		5,223		5,240
Income from operations	[1]		32,789		30,474		55,620		59,333
Other expense:
Interest expense	[1]		5,044		4,721		10,095		9,450
Other miscellaneous expense (income), net	[1]		(240)		(24)		(456)		20
Income before income taxes	[1]		27,985		25,777		45,981		49,863
Income tax expense	[1]		8,926		8,928		16,819		18,139
Equity in net (income) loss of unconsolidated affiliates	[1]		62		192		724		518
Net income	[1]		18,997		16,657		28,438		31,206
Less net income attributable to noncontrolling interest	[1]		2,153		1,917		3,028		3,492
Net income attributable to ADS	[1]		16,844		14,740		25,410		27,714
Change in fair value of Redeemable convertible preferred stock	[1]		7,319		(3,186)		(11,054)		(4,764)
Dividends to Redeemable convertible preferred stockholders	[1]		(37)		(214)		(75)		(430)
Dividends paid to unvested restricted stockholders	[1]				(8)				(16)
Net income (loss) available to common stockholders and participating securities	[1]		24,126		11,332		14,281		22,504
Undistributed income allocated to participating securities	[1]		(2,768)		(1,203)		(1,702)		(2,406)
Net income available to common stockholders	[1]		$ 21,358		$ 10,129		$ 12,579		$ 20,098
Weighted average common shares outstanding:
Basic	[1]		51,518		47,250		49,538		47,220
Diluted	[1]		56,463		47,579		52,198		47,634
Net income per share:
Basic	[1]		$ 0.41		$ 0.21		$ 0.25		$ 0.43
Diluted	[1]		$ 0.41		0.21		$ 0.25		0.42
Cash dividends declared per share	[1]				$ 0.03				$ 0.06
As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales			$ 364,724		$ 333,240		$ 693,021		$ 626,342
Cost of goods sold			282,282		260,021		538,546		487,120
Gross profit			82,442		73,219		154,475		139,222
Operating expenses:
Selling			19,762		18,166		39,008		35,843
General and administrative			18,879		17,917		39,411		35,576
Loss (gain) on disposal of assets or businesses									(4,848)
Intangible amortization			2,638		2,861		5,279		5,722
Income from operations			41,163		34,275		70,777		66,929
Other expense:
Interest expense			4,338		3,866		8,953		7,967
Other miscellaneous expense (income), net			(7)		287		7		816
Income before income taxes			36,832		30,122		61,817		58,146
Income tax expense			14,062		12,242		23,757		23,308
Equity in net (income) loss of unconsolidated affiliates			2		97		623		345
Net income			22,768		17,783		37,437		34,493
Less net income attributable to noncontrolling interest			378		461		806		875
Net income attributable to ADS			22,390		17,322		36,631		33,618
Change in fair value of Redeemable convertible preferred stock			7,319		(3,186)		(11,054)		(4,764)
Dividends to Redeemable convertible preferred stockholders			(37)		(214)		(75)		(430)
Dividends paid to unvested restricted stockholders					(8)				(16)
Net income (loss) available to common stockholders and participating securities			29,672		13,914		25,502		28,408
Undistributed income allocated to participating securities			(3,404)		(1,536)		(3,040)		(3,124)
Net income available to common stockholders			$ 26,268		$ 12,378		$ 22,462		$ 25,284
Weighted average common shares outstanding:
Basic			51,518		47,250		49,538		47,220
Diluted			56,463		47,579		52,198		47,634
Net income per share:
Basic			$ 0.51		$ 0.26		$ 0.45		$ 0.54
Diluted			$ 0.51		0.26		$ 0.45		0.53
Cash dividends declared per share					$ 0.03				$ 0.06
Adjustments [Member] | ADS Mexicana [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales			$ 1,856		$ 452		$ 1,850		$ 991
Cost of goods sold			1,815		377		2,349		1,508
Gross profit			41		75		(499)		(517)
Operating expenses:
Selling			162				49		(1,456)
General and administrative			(477)		(455)		(1,015)		(910)
Income from operations			356		530		467		1,849
Other expense:
Other miscellaneous expense (income), net			(217)		(284)		(432)		(746)
Income before income taxes			573		814		899		2,595
Net income			573		814		899		2,595
Less net income attributable to noncontrolling interest			437		513		664		1,482
Net income attributable to ADS			136		301		235		1,113
Net income (loss) available to common stockholders and participating securities			136		301		235		1,113
Undistributed income allocated to participating securities			(16)		(36)		(28)		(135)
Net income available to common stockholders			120		265		207		978
Adjustments [Member] | Lease Agreement [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of goods sold			531		(623)		171		(784)
Gross profit			(531)		623		(171)		784
Operating expenses:
Selling			281		(127)		171		(272)
General and administrative			(18)		(104)		(98)		(186)
Loss (gain) on disposal of assets or businesses			23		4		74		140
Income from operations			(817)		850		(318)		1,102
Other expense:
Interest expense			706		855		1,142		1,483
Income before income taxes			(1,523)		(5)		(1,460)		(381)
Net income			(1,523)		(5)		(1,460)		(381)
Net income attributable to ADS			(1,523)		(5)		(1,460)		(381)
Net income (loss) available to common stockholders and participating securities			(1,523)		(5)		(1,460)		(381)
Undistributed income allocated to participating securities			175		1		174		46
Net income available to common stockholders			(1,348)		(4)		(1,286)		(335)
Adjustments [Member] | Inventory [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of goods sold			11,665		6,690		21,120		15,038
Gross profit			(11,665)		(6,690)		(21,120)		(15,038)
Operating expenses:
Selling			(24)		(87)		129		151
General and administrative			(4,574)		(3,948)		(8,488)		(7,933)
Income from operations			(7,067)		(2,655)		(12,761)		(7,256)
Other expense:
Income before income taxes			(7,067)		(2,655)		(12,761)		(7,256)
Net income			(7,067)		(2,655)		(12,761)		(7,256)
Net income attributable to ADS			(7,067)		(2,655)		(12,761)		(7,256)
Net income (loss) available to common stockholders and participating securities			(7,067)		(2,655)		(12,761)		(7,256)
Undistributed income allocated to participating securities			811		320		1,521		882
Net income available to common stockholders			(6,256)		(2,335)		(11,240)		(6,374)
Adjustments [Member] | Long-Lived Assets [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of goods sold			16		(40)		67		(497)
Gross profit			(16)		40		(67)		497
Operating expenses:
Selling			143		179		370		193
General and administrative			75		101		198		106
Loss (gain) on disposal of assets or businesses			258		200		271		176
Intangible amortization			(28)		(241)		(56)		(482)
Income from operations			(464)		(199)		(850)		504
Other expense:
Other miscellaneous expense (income), net			(16)		(27)		(33)		(50)
Income before income taxes			(448)		(172)		(817)		554
Net income			(448)		(172)		(817)		554
Net income attributable to ADS			(448)		(172)		(817)		554
Net income (loss) available to common stockholders and participating securities			(448)		(172)		(817)		554
Undistributed income allocated to participating securities			51		21		97		(67)
Net income available to common stockholders			(397)		(151)		(720)		487
Adjustments [Member] | Income Taxes and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales			134		(965)		(1,723)		(2,027)
Cost of goods sold			642		714		274		983
Gross profit			(508)		(1,679)		(1,997)		(3,010)
Operating expenses:
Selling			(84)		504		65		696
General and administrative			(42)		144		(367)		89
Income from operations			(382)		(2,327)		(1,695)		(3,795)
Other expense:
Other miscellaneous expense (income), net							2
Income before income taxes			(382)		(2,327)		(1,697)		(3,795)
Income tax expense			(5,136)		(3,314)		(6,938)		(5,169)
Equity in net (income) loss of unconsolidated affiliates			60		95		101		173
Net income			4,694		892		5,140		1,201
Less net income attributable to noncontrolling interest			1,338		943		1,558		1,135
Net income attributable to ADS			3,356		(51)		3,582		66
Net income (loss) available to common stockholders and participating securities			3,356		(51)		3,582		66
Undistributed income allocated to participating securities			(385)		27		(426)		(8)
Net income available to common stockholders			$ 2,971		$ (24)		$ 3,156		$ 58
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Restatement of Previously Iss49

Restatement of Previously Issued Financial Statements - Schedule of Impact on Condensed Consolidated Statements of Comprehensive Income (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	[1]	$ 18,997	$ 16,657	$ 28,438	$ 31,206
Comprehensive income	[1]	15,406	18,062	25,006	28,133
Less other comprehensive loss attributable to noncontrolling interest, net of tax	[1]	(761)	(293)	(907)	(1,266)
Less net income attributable to noncontrolling interest	[1]	2,153	1,917	3,028	3,492
Total comprehensive income attributable to ADS	[1]	14,014	16,438	22,885	25,907
As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		22,768	17,783	37,437	34,493
Comprehensive income		19,198	19,193	34,019	31,440
Less other comprehensive loss attributable to noncontrolling interest, net of tax		(759)	(297)	(912)	(1,270)
Less net income attributable to noncontrolling interest		378	461	806	875
Total comprehensive income attributable to ADS		19,579	19,029	34,125	31,835
Adjustments [Member] | ADS Mexicana [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		573	814	899	2,595
Comprehensive income		560	810	900	2,577
Less other comprehensive loss attributable to noncontrolling interest, net of tax		(2)	3	5	2
Less net income attributable to noncontrolling interest		437	513	664	1,482
Total comprehensive income attributable to ADS		125	294	231	1,093
Adjustments [Member] | Lease Agreement [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(1,523)	(5)	(1,460)	(381)
Comprehensive income		(1,523)	(5)	(1,460)	(381)
Total comprehensive income attributable to ADS		(1,523)	(5)	(1,460)	(381)
Adjustments [Member] | Inventory [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(7,067)	(2,655)	(12,761)	(7,256)
Comprehensive income		(7,067)	(2,655)	(12,761)	(7,256)
Total comprehensive income attributable to ADS		(7,067)	(2,655)	(12,761)	(7,256)
Adjustments [Member] | Long-Lived Assets [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(448)	(172)	(817)	554
Comprehensive income		(456)	(174)	(832)	550
Total comprehensive income attributable to ADS		(456)	(174)	(832)	550
Adjustments [Member] | Income Taxes and Other [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		4,694	892	5,140	1,201
Comprehensive income		4,694	893	5,140	1,203
Less other comprehensive loss attributable to noncontrolling interest, net of tax			1		2
Less net income attributable to noncontrolling interest		1,338	943	1,558	1,135
Total comprehensive income attributable to ADS		$ 3,356	$ (51)	$ 3,582	$ 66
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Restatement of Previously Iss50

Restatement of Previously Issued Financial Statements - Schedule of Impact on Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands		Sep. 30, 2014		Mar. 31, 2014		Sep. 30, 2013	Apr. 01, 2013
ASSETS
Cash	[1]	$ 6,581		$ 3,931		$ 2,036	$ 1,361
Receivables, net	[1]	246,046		148,271
Inventories	[1]	232,262		259,891
Deferred income taxes and other current assets	[1]	13,737		14,465
Property, plant and equipment, net	[1]	359,742		350,351
Goodwill	[1]	88,000		88,017
Intangible assets, net	[1]	54,132		59,194
Other assets	[1]	67,660		65,447
Total assets	[1]	1,068,160		989,567
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Current maturities of debt obligations	[1]	11,148		11,153
Current maturities of capital lease obligations	[1]	12,225		12,364
Accounts payable	[1]	115,716		110,972
Other accrued liabilities	[1]	50,240		43,085
Accrued income taxes	[1]	19,698		7,980
Long-term debt obligation	[1]	386,435		442,895
Long-term capital lease obligation	[1]	49,237		34,366
Deferred tax liabilities	[1]	60,401		66,333
Other liabilities	[1]	27,319		32,170
Total liabilities	[1]	732,419		761,318
Mezzanine equity	[1]	111,599		642,951
Common stock	[1]	12,393		11,957
Paid-in capital	[1]	689,980		12,438
Common stock in treasury, at cost	[1]	(447,674)		(448,439)
Accumulated other comprehensive loss		(9,355)	[1]	(6,830)	[1]	$ (2,888)	(1,081)
Retained earnings (deficit)		(40,900)	[1]	(2,412)	[1]		$ (299,923)
Noncontrolling interest in subsidiaries	[1]	19,698		18,584
Total liabilities, mezzanine equity and stockholders' (deficit)	[1]	1,068,160		989,567
ADS Mexicana [Member]
ASSETS
Property, plant and equipment, net		20,542		21,633
Other assets		3,013		3,378
Total assets		58,089		57,888
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Total liabilities		17,558		18,615
As Previously Reported [Member]
ASSETS
Cash		6,581		3,931
Receivables, net		248,120		150,713
Inventories		247,368		260,300
Deferred income taxes and other current assets		12,848		13,555
Property, plant and equipment, net		288,170		292,082
Goodwill		86,280		86,297
Intangible assets, net		60,266		66,184
Other assets		68,591		64,533
Total assets		1,018,224		937,595
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Current maturities of debt obligations		11,148		11,153
Accounts payable		113,530		108,111
Other accrued liabilities		43,508		37,956
Accrued income taxes		22,360		7,372
Long-term debt obligation		386,435		442,895
Deferred tax liabilities		64,398		69,169
Other liabilities		14,263		15,324
Total liabilities		655,642		691,980
Mezzanine equity		109,277		642,951
Common stock		12,393		11,957
Paid-in capital		675,183		22,547
Common stock in treasury, at cost		(447,674)		(448,439)
Accumulated other comprehensive loss		(8,483)		(5,977)
Noncontrolling interest in subsidiaries		21,886		22,576
Total liabilities, mezzanine equity and stockholders' (deficit)		1,018,224		937,595
Adjustments [Member] | ADS Mexicana [Member]
ASSETS
Receivables, net		(1,545)		(3,404)
Inventories		1,093		2,475
Total assets		(452)		(929)
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Accumulated other comprehensive loss		(545)		(541)
Retained earnings (deficit)		126		(108)
Noncontrolling interest in subsidiaries		(33)		(280)
Total liabilities, mezzanine equity and stockholders' (deficit)		(452)		(929)
Adjustments [Member] | Lease Agreement [Member]
ASSETS
Inventories		(275)		(86)
Property, plant and equipment, net		76,327		62,903
Other assets		(9)		(15)
Total assets		76,043		62,802
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Current maturities of capital lease obligations		12,225		12,364
Other accrued liabilities		516		530
Long-term capital lease obligation		49,237		34,366
Other liabilities		65		82
Total liabilities		62,043		47,342
Retained earnings (deficit)		14,000		15,460
Total liabilities, mezzanine equity and stockholders' (deficit)		76,043		62,802
Adjustments [Member] | Inventory [Member]
ASSETS
Inventories		(17,158)		(4,270)
Total assets		(17,158)		(4,270)
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Accounts payable		577		704
Total liabilities		577		704
Retained earnings (deficit)		(17,735)		(4,974)
Total liabilities, mezzanine equity and stockholders' (deficit)		(17,158)		(4,270)
Adjustments [Member] | Long-Lived Assets [Member]
ASSETS
Inventories		(65)		(130)
Deferred income taxes and other current assets		325		343
Property, plant and equipment, net		(4,833)		(4,663)
Goodwill		1,805		1,805
Intangible assets, net		(6,134)		(6,991)
Other assets		(7,413)		(5,759)
Total assets		(16,315)		(15,395)
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Accounts payable				88
Total liabilities				88
Accumulated other comprehensive loss		(25)		(9)
Retained earnings (deficit)		(16,290)		(15,474)
Total liabilities, mezzanine equity and stockholders' (deficit)		(16,315)		(15,395)
Adjustments [Member] | Income Taxes and Other [Member]
ASSETS
Receivables, net		(529)		962
Inventories		1,299		1,602
Deferred income taxes and other current assets		564		567
Property, plant and equipment, net		78		29
Goodwill		(85)		(85)
Intangible assets, net				1
Other assets		6,491		6,688
Total assets		7,818		9,764
LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' DEFICIT
Accounts payable		1,609		2,069
Other accrued liabilities		6,216		4,599
Accrued income taxes		(2,662)		608
Deferred tax liabilities		(3,997)		(2,836)
Other liabilities		12,991		16,764
Total liabilities		14,157		21,204
Mezzanine equity		2,322
Paid-in capital		14,797		(10,109)
Accumulated other comprehensive loss		(302)		(303)
Retained earnings (deficit)		(21,001)		2,684
Noncontrolling interest in subsidiaries		(2,155)		(3,712)
Total liabilities, mezzanine equity and stockholders' (deficit)		$ 7,818		$ 9,764
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Restatement of Previously Iss51

Restatement of Previously Issued Financial Statements - Cumulative Effect of Prior Period Adjustments (Detail) - USD ($) $ in Thousands		Apr. 01, 2013	Sep. 30, 2014		Mar. 31, 2014
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)	[1]		$ 224,142		$ (414,702)
Adjustments from:
Total adjustments		$ (6,142)
Total adjustments		(14,201)
Stockholders' equity (deficit), April 1, 2013 (As Restated)		(299,923)	$ (40,900)	[1]	(2,412)	[1]
Lease Agreement [Member]
Adjustments from:
Total adjustments		17,883
Inventory [Member]
Adjustments from:
Total adjustments		(3,490)
Long-Lived Assets [Member]
Adjustments from:
Total adjustments		(15,779)
All Other Non-Income Tax Adjustments [Member]
Adjustments from:
Total adjustments		(4,942)
As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		(285,722)			(397,336)
Common Stock [Member]
Adjustments from:
Stockholders' equity (deficit), April 1, 2013 (As Restated)		11,957
Common Stock [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		11,957			11,957
Paid In Capital [Member]
Adjustments from:
Total adjustments		(1,126)
Stockholders' equity (deficit), April 1, 2013 (As Restated)		40,026
Paid In Capital [Member] | All Other Non-Income Tax Adjustments [Member]
Adjustments from:
Total adjustments		(1,126)
Paid In Capital [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		41,152			22,547
Common Stock in Treasury [Member]
Adjustments from:
Stockholders' equity (deficit), April 1, 2013 (As Restated)		(448,571)
Common Stock in Treasury [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		(448,571)			(448,439)
Accumulated Other Comprehensive Loss [Member]
Adjustments from:
Total adjustments		(225)
Stockholders' equity (deficit), April 1, 2013 (As Restated)		(1,081)
Accumulated Other Comprehensive Loss [Member] | Long-Lived Assets [Member]
Adjustments from:
Total adjustments		1
Accumulated Other Comprehensive Loss [Member] | All Other Non-Income Tax Adjustments [Member]
Adjustments from:
Total adjustments		270
Accumulated Other Comprehensive Loss [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		(856)			(5,977)
Retained Earnings (Deficit) [Member]
Adjustments from:
Total adjustments		(6,142)
Total adjustments		(8,129)
Stockholders' equity (deficit), April 1, 2013 (As Restated)		79,202
Retained Earnings (Deficit) [Member] | Lease Agreement [Member]
Adjustments from:
Total adjustments		17,883
Retained Earnings (Deficit) [Member] | Inventory [Member]
Adjustments from:
Total adjustments		(3,490)
Retained Earnings (Deficit) [Member] | Long-Lived Assets [Member]
Adjustments from:
Total adjustments		(15,780)
Retained Earnings (Deficit) [Member] | All Other Non-Income Tax Adjustments [Member]
Adjustments from:
Total adjustments		(14)
Retained Earnings (Deficit) [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		87,331
Total ADS Stockholders' Equity (Deficit) [Member]
Adjustments from:
Total adjustments		(6,142)
Total adjustments		(9,480)
Stockholders' equity (deficit), April 1, 2013 (As Restated)		(318,467)
Total ADS Stockholders' Equity (Deficit) [Member] | Lease Agreement [Member]
Adjustments from:
Total adjustments		17,883
Total ADS Stockholders' Equity (Deficit) [Member] | Inventory [Member]
Adjustments from:
Total adjustments		(3,490)
Total ADS Stockholders' Equity (Deficit) [Member] | Long-Lived Assets [Member]
Adjustments from:
Total adjustments		(15,779)
Total ADS Stockholders' Equity (Deficit) [Member] | All Other Non-Income Tax Adjustments [Member]
Adjustments from:
Total adjustments		(870)
Total ADS Stockholders' Equity (Deficit) [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		(308,987)			(419,912)
Non-controlling Interest in Subsidiaries [Member]
Adjustments from:
Total adjustments		(4,721)
Stockholders' equity (deficit), April 1, 2013 (As Restated)		18,544
Non-controlling Interest in Subsidiaries [Member] | All Other Non-Income Tax Adjustments [Member]
Adjustments from:
Total adjustments		(4,072)
Non-controlling Interest in Subsidiaries [Member] | As Previously Reported [Member]
Retained Earnings Adjustments [Line Items]
Stockholders' equity (deficit), April 1, 2013 (as previously reported)		23,265			$ 22,576
ADS Mexicana [Member]
Adjustments from:
Total adjustments		(1,731)
ADS Mexicana [Member] | Accumulated Other Comprehensive Loss [Member]
Adjustments from:
Total adjustments		(496)
ADS Mexicana [Member] | Retained Earnings (Deficit) [Member]
Adjustments from:
Total adjustments		(586)
ADS Mexicana [Member] | Total ADS Stockholders' Equity (Deficit) [Member]
Adjustments from:
Total adjustments		(1,082)
ADS Mexicana [Member] | Non-controlling Interest in Subsidiaries [Member]
Adjustments from:
Total adjustments		$ (649)
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Restatement of Previously Iss52

Restatement of Previously Issued Financial Statements - Schedule of Impact on Condensed Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net cash provided by operating activities	[1]	$ 14,906	$ 8,385
Net cash used in investing activities	[1]	(23,972)	(21,524)
Net cash provided by financing activities	[1]	11,946	13,805
As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net cash provided by operating activities		10,807	3,283
Net cash used in investing activities		(25,742)	(23,036)
Net cash provided by financing activities		17,836	20,428
Adjustments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net cash provided by operating activities		4,099	5,102
Net cash used in investing activities		1,770	1,512
Net cash provided by financing activities		$ (5,890)	$ (6,623)
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Disposal of Assets or Busines53

Disposal of Assets or Businesses - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 28, 2013	Sep. 30, 2014	[1]	Sep. 30, 2013	[1]	Sep. 30, 2014	[1]	Sep. 30, 2013	[1]
Asset Retirement Obligation Disclosure [Abstract]
Proceeds from sale of assets/business	$ 5,877					$ 156		$ 6,056
Net book value of assets	1,029
Gain on sale of assets/business	$ 4,848	$ (281)		$ (204)		$ (345)		$ 4,532
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant, Equipment and Depreciation Expense on Assets (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Property, Plant and Equipment [Line Items]
Construction in Progress		$ 841,586	$ 810,120
Less accumulated depreciation		(481,844)	(459,769)
Property, plant and equipment - net	[1]	359,742	350,351
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Construction in Progress		161,415	158,588
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Construction in Progress		664,574	640,529
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Construction in Progress		$ 15,597	$ 11,003
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Property, Plant and Equipment55

Property, Plant and Equipment - Depreciation Expense on Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 12,533	$ 12,107	$ 24,790	$ 24,188

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Inventory Disclosure [Abstract]
Raw materials		$ 56,859	$ 51,785
Finished goods		175,403	208,106
Total inventory	[1]	$ 232,262	$ 259,891
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($)	Sep. 30, 2014	Mar. 31, 2014
Inventory Disclosure [Abstract]
Work-in-process inventories	$ 0	$ 0

Leases - Summary of Leased Asse

Leases - Summary of Leased Assets Accounted for Capital Leases and Included in Property, Plant and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2014	Mar. 31, 2014
Capital Leased Assets [Line Items]
Total cost	$ 173,062	$ 153,696
Less accumulated amortization	(95,858)	(89,599)
Leased assets in Property, plant and equipment, net	77,204	64,097
Buildings and Improvements [Member]
Capital Leased Assets [Line Items]
Total cost	7,163	7,716
Machinery and Equipment [Member]
Capital Leased Assets [Line Items]
Total cost	$ 165,899	$ 145,980

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments under Capital Leases with Present Value (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments, Fiscal Year Maturity [Abstract]
September 30, 2015		$ 15,157
September 30, 2016		15,115
September 30, 2017		13,181
September 30, 2018		9,913
September 30, 2019		7,517
Thereafter		9,407
Total minimum lease payments		70,290
Less: amount representing interest		8,828
Present value of net minimum lease payments		61,462
Lease obligation - Current	[1]	12,225	$ 12,364
Lease obligation - Long-term	[1]	49,237	$ 34,366
Total lease obligation		$ 61,462
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Leases - Schedule of Future M60

Leases - Schedule of Future Minimum Lease Payments under Capital Leases with Present Value (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2014	Sep. 30, 2013
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments, Fiscal Year Maturity [Abstract]
Contingent rentals amount	$ 375	$ 10

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Leases [Abstract]
Capital lease obligation incurred	$ 5,496	$ 5,053	$ 20,158	$ 16,373
Total rent expense	$ 645	$ 928	$ 1,625	$ 2,231

Leases - Summary of Future Mini

Leases - Summary of Future Minimum Rental Commitments under Operating Leases (Detail) $ in Thousands	Sep. 30, 2014USD ($)
Leases, Operating [Abstract]
Future operating lease payments,2016	$ 2,842
Future operating lease payments, 2017	2,245
Future operating lease payments, 2018	1,224
Future operating lease payments, 2019	638
Future operating lease payments, 2020	416
Future operating lease payments, thereafter	$ 2,245

Goodwill and Intangible Asset63

Goodwill and Intangible Assets - Carrying Amount of Goodwill by Reportable Segment (Detail) $ in Thousands	6 Months Ended
	Sep. 30, 2014USD ($)
Goodwill [Line Items]
Beginning balance	$ 88,017	[1]
Currency translation	(17)
Ending balance	88,000	[1]
Domestic Segment [Member]
Goodwill [Line Items]
Beginning balance	87,507
Ending balance	87,507
International Segment [Member]
Goodwill [Line Items]
Beginning balance	510
Currency translation	(17)
Ending balance	$ 493
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Goodwill and Intangible Asset64

Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		$ 97,414	$ 97,251
Accumulated Amortization		(55,270)	(50,047)
Net Intangible		42,144	47,204
Intangible Assets, Gross (Excluding Goodwill)		109,402	109,241
Intangible Assets Accumulated Amortization		(55,270)	(50,047)
Intangible assets, net	[1]	54,132	59,194
Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)		11,988	11,990
Indefinite Lived Intangible Assets Accumulated Amortization		0	0
Indefinite-Lived Intangible Assets (Excluding Goodwill)		11,988	11,990
Developed Technology [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		40,579	40,579
Accumulated Amortization		(24,497)	(22,588)
Net Intangible		16,082	17,991
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		38,252	38,252
Accumulated Amortization		(24,244)	(21,793)
Net Intangible		14,008	16,459
Patents [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		6,338	6,175
Accumulated Amortization		(3,235)	(2,921)
Net Intangible		3,103	3,254
Non-compete and Other Contractual Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		1,088	1,088
Accumulated Amortization		(667)	(491)
Net Intangible		421	597
Trademarks and Tradenames [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		11,157	11,157
Accumulated Amortization		(2,627)	(2,254)
Net Intangible		$ 8,530	$ 8,903
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Fair Value Measurement - Summar

Fair Value Measurement - Summary of Assets and Liabilities Carried at Fair Value (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Apr. 01, 2013
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Deferred compensation - unearned ESOP shares	[1]	$ (215,024)		$ (197,888)
Total liabilities & mezzanine equity at fair value on a recurring basis		2,526	$ 777,920	645,849	$ 649,393	$ 624,925	$ 611,025
Interest Rate Swaps [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		639		1,001
Propylene Swaps [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		491
Derivative assets				27
Fair Value, Measurements, Recurring [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets at fair value on a recurring basis				27
Contingent consideration for acquisitions		2,526		2,898
Redeemable Common Stock				549,119
Redeemable Convertible Preferred Stock				291,720
Deferred compensation - unearned ESOP shares				(197,888)
Total liabilities & mezzanine equity at fair value on a recurring basis		3,664		646,850
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets at fair value on a recurring basis				27
Total liabilities & mezzanine equity at fair value on a recurring basis		1,138		1,001
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration for acquisitions		2,526		2,898
Redeemable Common Stock				549,119
Redeemable Convertible Preferred Stock				291,720
Deferred compensation - unearned ESOP shares				(197,888)
Total liabilities & mezzanine equity at fair value on a recurring basis		2,526		645,849
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		639		1,001
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member] | Level 2 [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		639		1,001
Fair Value, Measurements, Recurring [Member] | Diesel Fuel Contracts [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		8
Fair Value, Measurements, Recurring [Member] | Diesel Fuel Contracts [Member] | Level 2 [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		8
Fair Value, Measurements, Recurring [Member] | Propylene Swaps [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		491
Derivative assets				27
Fair Value, Measurements, Recurring [Member] | Propylene Swaps [Member] | Level 2 [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability		$ 491
Derivative assets				$ 27
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Fair Value Measurement - Summ66

Fair Value Measurement - Summary of Changes in Fair Value of Recurring Fair Value Measurements Using Unobservable Inputs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 777,920	$ 624,925	$ 645,849	$ 611,025
Allocation of ESOP shares to participants	804	3,122	(1,339)	(1,023)
Change in fair value	(51,690)	23,579	76,977	35,421
Payments of contingent consideration liability	(191)	(144)	(374)	(341)
Transfer from Level 3	(724,317)		(724,317)
Redemption of Redeemable convertible preferred stock		(2,089)		(3,146)
Transfer to Level 3				385
Ending balance	2,526	649,393	2,526	649,393
Total Mezzanine Equity [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Allocation of ESOP shares to participants			6,713	6,049
Redeemable Common Stock [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	659,431	532,836	549,119	522,276
Change in fair value	(44,391)	20,353	65,921	30,528
Transfer from Level 3	(615,040)		(615,040)
Transfer to Level 3				385
Ending balance		553,189		553,189
Redeemable Convertible Preferred Stock [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	348,898	286,828	291,720	282,547
Change in fair value	(22,275)	10,835	34,903	16,173
Transfer from Level 3	(326,623)		(326,623)
Redemption of Redeemable convertible preferred stock		(2,089)		(3,146)
Ending balance		295,574		295,574
Deferred Compensation - Unearned ESOP Shares [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	(233,106)	(197,310)	(197,888)	(196,477)
Allocation of ESOP shares to participants	804	3,122
Change in fair value	14,956	(7,649)	(23,849)	(11,409)
Transfer from Level 3	217,346		217,346
Ending balance		(201,837)		(201,837)
Deferred Compensation - Unearned ESOP Shares [Member] | Total Mezzanine Equity [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Allocation of ESOP shares to participants			4,391	6,049
Contingent Consideration [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	2,697	2,571	2,898	2,679
Change in fair value	20	40	2	129
Payments of contingent consideration liability	(191)	(144)	(374)	(341)
Ending balance	$ 2,526	$ 2,467	$ 2,526	$ 2,467

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 30, 2014	Mar. 31, 2014
Fair Value Disclosures [Abstract]
Fair value of assets and liabilities transfers amount	$ 0	$ 0
Weighted average costs of capital percentage		11.00%

Ads Mexicana - Additional Infor

Ads Mexicana - Additional Information (Detail) - ADS Mexicana [Member] - Variable Interest Entity, Primary Beneficiary [Member] $ in Thousands	1 Months Ended
	Apr. 30, 2013USD ($)
ADS World Wide [Member]
Variable Interest Entity [Line Items]
Additional equity interest in its consolidated subsidiary	1.00%
Additional equity interest in its consolidated subsidiary, payment	$ 520
Maximum [Member]
Variable Interest Entity [Line Items]
Ownership percentage	51.00%
Minimum [Member]
Variable Interest Entity [Line Items]
Ownership percentage	50.00%

Ads Mexicana - Assets and Liabi

Ads Mexicana - Assets and Liabilities of Ads Mexicana (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
ASSETS
Current assets	[1]	$ 498,626	$ 426,558
Property, plant and equipment, net	[1]	359,742	350,351
Other noncurrent assets	[1]	67,660	65,447
Total assets	[1]	1,068,160	989,567
Liabilities
Current liabilities	[1]	209,027	185,554
Total liabilities	[1]	732,419	761,318
ADS Mexicana [Member]
ASSETS
Current assets		34,534	32,877
Property, plant and equipment, net		20,542	21,633
Other noncurrent assets		3,013	3,378
Total assets		58,089	57,888
Liabilities
Current liabilities		11,019	11,595
Noncurrent liabilities		6,539	7,020
Total liabilities		$ 17,558	$ 18,615
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Investment In Unconsolidated 70

Investment In Unconsolidated Affiliates - Additional Information (Detail)		6 Months Ended
		Sep. 30, 2014USD ($)JointVenture	Apr. 07, 2014USD ($)	Mar. 31, 2014USD ($)	Sep. 30, 2013USD ($)	Jul. 15, 2013USD ($)	Apr. 01, 2013USD ($)
Investments in and Advances to Affiliates [Line Items]
Number of unconsolidated joint venture participated | JointVenture		3
Cash	[1]	$ 6,581,000		$ 3,931,000	$ 2,036,000		$ 1,361,000
Inventories	[1]	232,262,000		259,891,000
Intangible assets	[1]	54,132,000		59,194,000
Unamortized basis difference		$ 1,739,000
Amortization Period		10 years
BaySaver [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership		55.00%				55.00%
Percentage of voting interest						50.00%
Percentage of minority ownership						45.00%
BaySaver [Member] | Investments in Majority-owned Subsidiaries [Member]
Investments in and Advances to Affiliates [Line Items]
Cash						$ 3,500,000
Inventories						1,285,000
Intangible assets						$ 0
Tigre-ADS USA [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership		49.00%	49.00%
Amount paid for acquiring shares			$ 3,566,000
South American Joint Venture [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership		50.00%
Capital contribution		$ 4,000,000		$ 2,875,000
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Investment In Unconsolidated 71

Investment In Unconsolidated Affiliates - Summarized Financial Data of Joint Ventures (Detail) - USD ($) $ in Thousands	Sep. 30, 2014	Mar. 31, 2014
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	$ 28,405	$ 23,624
South American Joint Venture [Member]
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	19,782	18,422
Receivable from unconsolidated joint venture	4,660	8,313
BaySaver [Member]
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	5,217	5,202
Receivable from unconsolidated joint venture	216	$ 6
As Previously Reported [Member] | Tigre-ADS USA [Member]
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	3,406
Receivable from unconsolidated joint venture	$ 22

Related Party Transactions - Ad

Related Party Transactions - Additional information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014	Jul. 15, 2013
Related Party Transaction [Line Items]
Outstanding letters of credit	$ 8,005		$ 8,005
South American Joint Venture [Member]
Related Party Transaction [Line Items]
Maximum potential guarantee payments	7,000		$ 7,000
Percentage of debt guarantee			50.00%
Maximum borrowings permitted under credit facility	19,000		$ 19,000
Credit facility, maturity date			Feb. 5, 2017
Outstanding letters of credit	$ 12,300		$ 12,300		$ 11,100
Percentage of ownership	50.00%		50.00%
South American Joint Venture [Member] | US Dollar Denominated Loans [Member]
Related Party Transaction [Line Items]
Weighted average interest rate	3.53%		3.53%
South American Joint Venture [Member] | Chilean Peso Denominated Loans [Member]
Related Party Transaction [Line Items]
Weighted average interest rate	6.76%		6.76%
BaySaver [Member]
Related Party Transaction [Line Items]
Percentage of ownership	55.00%		55.00%			55.00%
Unsecured, interest-free, note receivable	$ 1,000		$ 1,000
Variable Interest Entity, Primary Beneficiary [Member] | ADS Mexicana [Member]
Related Party Transaction [Line Items]
Company's ownership percentage			51.00%
Cash payments for consulting services related to the operations of the business and a noncompete arrangement	94	$ 68	$ 169	$ 99
Net sales	1,027	$ 1,908	2,339	$ 3,776
Outstanding receivables related to sales	2,052		$ 2,052		$ 2,480
Guarantee percentage on credit facility			100.00%
Maximum potential guarantee payments	$ 12,000		$ 12,000
Guarantee description			We are the guarantor of 100% of ADS Mexicana's credit facility

Debt - Long-Term Debt (Detail)

Debt - Long-Term Debt (Detail) - USD ($) $ in Thousands		Sep. 30, 2014	Mar. 31, 2014
Debt Instrument [Line Items]
Revolving credit facility		$ 8,005
Long term debt		397,583	$ 454,048
Long term debt		397,583	454,048
Current maturities	[1]	(11,148)	(11,153)
Long-term debt obligation	[1]	386,435	442,895
Term Notes [Member]
Debt Instrument [Line Items]
Notes payable		95,000	97,500
Senior Notes Payable [Member]
Debt Instrument [Line Items]
Senior notes		100,000	100,000
Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable		2,833	3,733
Industrial Revenue Bonds [Member]
Debt Instrument [Line Items]
Industrial revenue bonds		3,950	4,715
ADS [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility		193,800	$ 248,100
ADS Mexicana [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility		$ 2,000
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Debt - Additional Information (

Debt - Additional Information (Detail)		1 Months Ended			6 Months Ended		12 Months Ended
		Jul. 31, 2014Bonds	Jul. 31, 2013USD ($)	Dec. 31, 2009USD ($)	Sep. 30, 2014USD ($)DerivativeMortgageLoanFacility	Sep. 30, 2013USD ($)	Jul. 31, 2015Bonds	Mar. 31, 2011Bonds	Mar. 31, 2014USD ($)
Debt Instrument [Line Items]
Revolving credit facility interest rate					2.603%
Outstanding letters of credit					$ 8,005,000
Date of Inception of interest rate swap					Oct. 7, 2010
Number of interest rate derivative | Derivative					2
Derivative, type of interest rate paid on swap					90-Day LIBOR interest rate
Maximum capital distributions	[1]				$ 1,007,000	$ 4,293,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Date of Inception of interest rate swap					Sep. 2, 2014
Rate of fixed interest swap					0.89%
Maturity period of interest rate derivative					3 years
Date of maturity of interest rate swap					Sep. 1, 2013
Derivative instrument notional amount					$ 50,000,000
Interest Rate Swaps [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Number of interest rate derivative | Derivative					2
Interest rate hedge executed date					Jul. 18, 2013
Forward Stating Interest Rate Swap [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Date of Inception of interest rate swap					Sep. 3, 2013
Derivative, type of interest rate paid on swap					30-Day LIBOR interest rate
Rate of fixed interest swap					0.86%
Maturity period of interest rate derivative					3 years
Date of maturity of interest rate swap					Sep. 1, 2016
Derivative instrument notional amount					$ 50,000,000
Interest rate hedge executed date					Jul. 18, 2013
Forward Second Interest Rate Swap [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Rate of fixed interest swap					1.08%
Maturity period of interest rate derivative					2 years
Date of maturity of interest rate swap					Sep. 1, 2016
Nontaxable Municipal Bonds [Member]
Debt Instrument [Line Items]
Number of bonds retired | Bonds		1
ADS [Member]
Debt Instrument [Line Items]
Borrowing under line of credit facility					$ 123,195,000
ADS [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility outstanding					325,000,000
Outstanding letters of credit					193,800,000				$ 248,100,000
ADS Mexicana [Member]
Debt Instrument [Line Items]
Borrowing under line of credit facility					10,000,000
ADS Mexicana [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility outstanding					12,000,000
Outstanding letters of credit					2,000,000
Senior Notes Payable [Member]
Debt Instrument [Line Items]
Debt instrument face amount				$ 75,000,000
Quarterly interest payable				5.60%
Additional principal payments				$ 25,000,000
Senior notes					100,000,000				100,000,000
Senior notes, fair value					$ 103,303,000				$ 104,511,000
Senior Notes Payable [Member] | ADS [Member]
Debt Instrument [Line Items]
Debt instrument face amount			$ 25,000,000
Debt instrument leverage fee					The rate is subject to an additional 200 basis point excess leverage fee if calculated leverage exceeds 3 to 1.
Aggregate amount on promissory notes issued				$ 100,000,000
Quarterly interest payable			4.05%
Additional principal payments			$ 25,000,000
Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Number of mortgage notes payable with fixed rate | MortgageLoan					1
Fixed interest rate					5.10%
Land and buildings net book value					$ 4,971,000
Industrial Revenue Bonds [Member]
Debt Instrument [Line Items]
Number of production facilities | Facility					4
Industrial Revenue Bonds [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Debt instrument fee percentage					3.75%
Industrial Revenue Bonds [Member] | Nontaxable Municipal Bonds [Member]
Debt Instrument [Line Items]
Number of bonds retired | Bonds								2
Average interest rate					3.84%
Collateral amount					$ 10,116
Industrial Revenue Bonds [Member] | Scenario, Forecast [Member] | Nontaxable Municipal Bonds [Member]
Debt Instrument [Line Items]
Number of bonds retired | Bonds							1
Term Notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument face amount					$ 100,000,000
Term loan maturity date					2018-06
Term Loan Facility [Member]
Debt Instrument [Line Items]
Rate of fixed interest swap					1.105%
Maturity period of interest rate derivative					4 years
Date of maturity of interest rate swap					Sep. 1, 2014
Debt Covenants and Dividend Restrictions[Member] | Maximum [Member]
Debt Instrument [Line Items]
Maximum capital distributions					$ 50,000,000
Leverage ratio					4
Debt Covenants and Dividend Restrictions[Member] | Minimum [Member]
Debt Instrument [Line Items]
Leverage ratio, minimum					3
Fixed charge coverage ratio					1.25
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Derivative Transactions - Addit

Derivative Transactions - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Unrealized Gain (Loss) on Derivatives and Commodity Contracts [Abstract]
Losses on mark-to-market adjustments for changes in fair value on derivative	$ (67)	$ (319)	$ (163)	$ (238)

Derivative Transactions - Summa

Derivative Transactions - Summary of Fair Values for Various Derivatives (Detail) - USD ($) $ in Thousands	Sep. 30, 2014	Mar. 31, 2014
Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
(Liability)	$ (639)	$ (1,001)
Diesel Fuel Option Collars [Member]
Derivatives, Fair Value [Line Items]
(Liability)	(8)
Propylene Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset		$ 27
(Liability)	$ (491)

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - Inventory [Member] $ in Thousands	Sep. 30, 2014USD ($)lb
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Quantity of raw materials to be purchased under the purchase commitment | lb	30,000
Total purchase commitment | $	$ 20,153

Accumulated Other Comprehensi78

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands		6 Months Ended
		Sep. 30, 2014		Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ (6,830)	[1]	$ (1,081)
Other comprehensive loss		(2,525)		(1,805)
Income tax expense (benefit)	[1]			(2)
Ending Balance		(9,355)	[1]	(2,888)
Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(6,838)		(1,085)
Other comprehensive loss		(2,525)		(1,810)
Ending Balance		(9,363)		(2,895)
Other [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		8		4
Other comprehensive loss				5
Income tax expense (benefit)				(2)
Ending Balance		$ 8		$ 7
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Redeemable Convertible Prefer79

Redeemable Convertible Preferred Stock - Additional Information (Detail) - Redeemable Convertible Preferred Stock [Member]	6 Months Ended
	Sep. 30, 2014$ / sharesshares
Schedule Of Redeemable Convertible Preferred Stock [Line Items]
Preferred stock, dividend rate, percentage	2.50%
Redeemable convertible preferred stock, shares | shares	0.7692
Preferred stock, conversion basis	0.7692 shares of common stock for each share of Redeemable convertible preferred stock
Redeemable convertible preferred stock, per share | $ / shares	$ 0.78

Stock-based Compensation - Addi

Stock-based Compensation - Additional Information (Detail) $ / shares in Units, $ in Thousands	Sep. 06, 2014Directors$ / sharesshares	Aug. 31, 2014$ / sharesshares	Sep. 30, 2014USD ($)$ / sharesshares	Sep. 30, 2013USD ($)$ / shares	Sep. 30, 2014USD ($)Installment$ / sharesshares	Sep. 30, 2013USD ($)$ / sharesshares	May. 31, 2014shares	Aug. 31, 2013shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average fair value of shares allocated under ESOP, per share | $ / shares					$ 12.34	$ 10.92
Compensation expense related to allocation of ESOP shares | $			$ 2,687	$ 2,506	$ 5,374	$ 5,026
Stock-based awards, unrecognized compensation expense | $			5,307	9,319	$ 5,307	9,319
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, vesting period					5 years
Share-based compensation expense | $			$ 639	$ 593	$ 1,548	1,178
Stock based awards, shares available for grant			333,000		333,000
Unrecognized compensation expense | $			$ 2,306		$ 2,306
Shares granted					0
Fair market value of the granted shares | $ / shares					$ 0
Restricted Stock [Member] | Vesting Immediately [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense | $					$ 0	$ 385
IPO [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
New grant, number of shares issued		78,000
New grant, fair market value of shares issued | $ / shares		$ 15.74
Redeemable Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares allocated under ESOP, per share | $ / shares			$ 12.50	$ 11.26	$ 12.50	$ 11.26
2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, number of shares authorized for grant							1,412,000
Stock based awards, shares available for grant			1,412,000		1,412,000
2013 Stock Option Plan [Member] | Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, number of shares authorized for grant								3,323,000
2013 Stock Option Plan [Member] | Employee Stock Options [Member] | Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, expiration period					10 years
Stock awards, number of annual installments for vesting | Installment					5
2013 Stock Option Plan [Member] | Employee Stock Options [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, expiration period					10 years
Stock-based awards, vesting period					4 years
2000 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based awards, shares available for grant			1,097,000		1,097,000
New grant, number of shares issued					78,000	15,000
2000 Stock Option Plan [Member] | Employee Stock Options [Member] | Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, expiration period					10 years
Stock awards, number of annual installments for vesting | Installment					3
2000 and 2013 Stock Option Plan [Member] | Employee Stock Options [Member] | General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense | $			$ 1,042	$ 387	$ 2,379	$ 462
Non Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, number of shares authorized for grant			282,000		282,000
Share-based compensation expense | $			$ 450	$ 0	$ 450	$ 0
New grant, number of shares issued					48,000
Unrecognized compensation expense | $			$ 450		$ 450
Stock-based awards, vesting period from the date of issuance					1 year
Shares granted	48,000
Number of directors to whom shares were granted | Directors	7
Fair market value of the granted shares | $ / shares	$ 18.88				$ 18.88
Vesting date						Feb. 27, 2015
Shares available for grant					234,000

Stock Compensation - Schedule o

Stock Compensation - Schedule of Estimate Fair Value of Stock Options Granted (Detail) - Employee Stock Options [Member]	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility	40.00%	44.00%
Risk-free interest rate	2.10%	2.30%
Dividend yield	0.86%	0.84%
Weighted Average [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average expected option life (years)	8 years	8 years

Stock-based Compensation - Sche

Stock-based Compensation - Schedule of Stock Option Transactions (Detail) - $ / shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Remaining Contractual Term	9 years 4 months 24 days	0 years	8 years 10 months 24 days	9 years 10 months 24 days
Weighted Average Remaining Contractual Term, Exercisable and vested at end of period			8 years 10 months 24 days
Weighted Average Remaining Contractual Term, Unvested at end of period			8 years 10 months 24 days	9 years 10 months 24 days
Weighted Average Remaining Contractual Term, Vested and expected to vest at end of period			8 years 10 months 24 days	9 years 10 months 24 days
Weighted Average Remaining Contractual Term, Fair value of options granted during the period			0 years	0 years
Weighted Average Remaining Contractual Term, Unvested at end of period			8 years 10 months 24 days	9 years 10 months 24 days
Weighted Average Remaining Contractual Term, Vested and expected to vest at end of period			8 years 10 months 24 days	9 years 10 months 24 days
Weighted Average Remaining Contractual Term, Fair value of options granted during the period			0 years	0 years
2000 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance	913	1,333	913	1,333
Number of Shares, Issued			78	15
Number of Shares, Exercised			78	94
Number of Shares, Forfeited				17
Number of Shares, Outstanding, Ending Balance			913	1,237
Number of Shares, Exercisable and vested at end of period			835	846
Number of Shares, Unvested at end of period			78	391	428
Number of Shares, Vested and expected to vest at end of period			901	1,167
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 9.48	$ 8.10	$ 9.48	$ 8.10
Weighted Average Exercise Price, Issued			15.74	13.64
Weighted Average Exercise Price, Exercised			7.36	7.77
Weighted Average Exercise Price, Forfeited				10.77
Weighted Average Exercise Price, Outstanding, Ending Balance			10.20	8.19
Weighted Average Exercise Price, Exercisable and vested at end of period			9.67	6.80
Weighted Average Exercise Price, Unvested at end of period			15.74	11.16
Weighted Average Exercise Price, Vested and expected to vest at end of period			10.12	$ 8.03
Weighted Average Exercise Price, Fair value of options granted during the period			$ 6.76
Weighted Average Remaining Contractual Term	4 years 1 month 6 days	4 years	4 years 3 months 18 days	3 years 8 months 12 days
Weighted Average Remaining Contractual Term, Exercisable and vested at end of period			3 years 9 months 18 days	2 years 1 month 6 days
Weighted Average Remaining Contractual Term, Unvested at end of period			9 years 10 months 24 days	7 years 1 month 6 days
Weighted Average Remaining Contractual Term, Vested and expected to vest at end of period			7 years 8 months 12 days	3 years 6 months
Weighted Average Remaining Contractual Term, Unvested at end of period			9 years 10 months 24 days	7 years 1 month 6 days
Weighted Average Remaining Contractual Term, Vested and expected to vest at end of period			7 years 8 months 12 days	3 years 6 months
2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance	1,911		1,911
Number of Shares, Forfeited				47
Number of Shares, Outstanding, Ending Balance			1,911	1,911
Number of Shares, Exercisable and vested at end of period			408
Number of Shares, Unvested at end of period			1,503	1,911	1,911
Number of Shares, Vested and expected to vest at end of period			1,881	1,704
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 13.64		$ 13.64
Weighted Average Exercise Price, Exercised				$ 13.64
Weighted Average Exercise Price, Forfeited				13.64
Weighted Average Exercise Price, Outstanding, Ending Balance			13.64	13.64
Weighted Average Exercise Price, Exercisable and vested at end of period			13.64
Weighted Average Exercise Price, Unvested at end of period			13.64	13.64
Weighted Average Exercise Price, Vested and expected to vest at end of period			$ 13.64	13.64
Weighted Average Exercise Price, Fair value of options granted during the period				$ 6.22
Equity Classified [Member] | 2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Issued				1,440
Weighted Average Exercise Price, Issued				$ 13.64
Liability Classified [Member] | 2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Issued				518
Weighted Average Exercise Price, Issued				$ 13.64

Stock-based Compensation - Summ

Stock-based Compensation - Summary of Nonvested Stock Option Grants (Detail) - $ / shares shares in Thousands	Sep. 06, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014
2000 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Unvested at beginning of period		$ 5.82
Number of Shares, Unvested at beginning of period		428
Weighted Average Grant Date Fair Value, Granted		$ 6.76
Weighted Average Grant Date Fair Value, Vested		5.82
Weighted Average Grant Date Fair Value, Forfeited		0
Weighted Average Grant Date Fair Value, Unvested at end of period		$ 6.76
Number of Shares, Granted		78	15
Number of Shares, Vested		428
Number of Shares, Forfeited		0
Number of Shares, Unvested at end of period		428	391	78
2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, Unvested at beginning of period		$ 6.22
Number of Shares, Unvested at beginning of period		1,911
Weighted Average Grant Date Fair Value, Granted			$ 6.22
Weighted Average Grant Date Fair Value, Vested		$ 13.64
Weighted Average Grant Date Fair Value, Forfeited		0
Weighted Average Grant Date Fair Value, Unvested at end of period		$ 3.64
Number of Shares, Vested		408
Number of Shares, Forfeited		0
Number of Shares, Unvested at end of period		1,911	1,911	1,503
Non Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested at beginning of period		0
Number of Shares, Granted		48
Number of Shares, Forfeited		0
Number of Shares, Unvested at end of period				48
Weighted Average Grant Date Fair Value, Unvested at beginning of period		$ 0
Weighted Average Grant Date Fair Value, Granted	$ 18.88	18.88
Weighted Average Grant Date Fair Value, Vested		0
Weighted Average Grant Date Fair Value, Forfeited		0
Weighted Average Grant Date Fair Value, Unvested at end of period		$ 0

Stock-based Compensation - Su84

Stock-based Compensation - Summary of Unvested Restricted Stock Grants (Detail) - Restricted Stock [Member] shares in Thousands	6 Months Ended
	Sep. 30, 2014$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested at beginning of period | shares	311
Number of Shares, Granted | shares	0
Number of Shares, Vested | shares	118
Number of Shares, Forfeited | shares	3
Number of Shares, Unvested at end of period | shares	190
Weighted Average Grant Date Fair Value, Unvested at beginning of period | $ / shares	$ 12.40
Weighted Average Grant Date Fair Value, Granted | $ / shares	0
Weighted Average Grant Date Fair Value, Vested | $ / shares	12.06
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	10.66
Weighted Average Grant Date Fair Value, Unvested at end of period | $ / shares	$ 12.60

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Effective income tax rate	36.60%	36.40%
Federal statutory rate	35.00%

Net Income Per Share - Summary

Net Income Per Share - Summary of Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income per share - Basic
Net income attributable to ADS	[1]	$ 16,844	$ 14,740	$ 25,410	$ 27,714
Change in fair value of redeemable convertible preferred stock		7,319	(3,186)	(11,054)	(4,764)
Dividends to redeemable convertible preferred stock	[1]	(37)	(214)	(75)	(430)
Dividends paid to unvested restricted stockholders	[1]		(8)		(16)
Net income available to common stockholders and participating securities	[1]	24,126	11,332	14,281	22,504
Undistributed income allocated to participating securities	[1]	(2,768)	(1,203)	(1,702)	(2,406)
Net income available to common stockholders - Basic	[1]	$ 21,358	$ 10,129	$ 12,579	$ 20,098
Weighted average number of common shares outstanding - Basic	[1]	51,518	47,250	49,538	47,220
Net income per common share - Basic	[1]	$ 0.41	$ 0.21	$ 0.25	$ 0.43
Net income per share - Diluted
Net income available to common stockholders - Basic	[1]	$ 21,358	$ 10,129	$ 12,579	$ 20,098
Undistributed income allocated to participating securities		1,952		601
Net income available to common stockholders - Diluted		$ 23,310	$ 10,129	$ 13,180	$ 20,098
Weighted average number of common shares outstanding - Basic	[1]	51,518	47,250	49,538	47,220
Assumed exercise of preferred stock		4,714		2,382
Assumed exercise of stock options		231	329	278	414
Weighted average number of common shares outstanding - Diluted	[1]	56,463	47,579	52,198	47,634
Net income per common share - Diluted	[1]	$ 0.41	$ 0.21	$ 0.25	$ 0.42
Potentially dilutive securities excluded as anti-dilutive		22	38	57	63
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Business Segments Information -

Business Segments Information - Additional Information (Detail)	6 Months Ended
	Sep. 30, 2014Segment
Segment Reporting [Abstract]
Number of reportable segments	2
Number of operating segments	2

Business Segments Information88

Business Segments Information - Schedule of Reportable Segment (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]
Total net sales	[1]	$ 366,714	$ 332,727	$ 693,148	$ 625,306
Domestic Segment [Member]
Segment Reporting Information [Line Items]
Total net sales		319,776	295,107	609,401	549,634
Domestic Segment [Member] | Pipe [Member]
Segment Reporting Information [Line Items]
Total net sales		241,713	223,099	457,749	411,179
Domestic Segment [Member] | Allied Products [Member]
Segment Reporting Information [Line Items]
Total net sales		78,063	72,008	151,652	138,455
International Segment [Member]
Segment Reporting Information [Line Items]
Total net sales		46,938	37,620	83,747	75,672
International Segment [Member] | Pipe [Member]
Segment Reporting Information [Line Items]
Total net sales		38,218	30,496	68,149	60,600
International Segment [Member] | Allied Products [Member]
Segment Reporting Information [Line Items]
Total net sales		$ 8,720	$ 7,124	$ 15,598	$ 15,072
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Business Segments Information89

Business Segments Information - Schedule of Additional Financial Information Attributable to Reportable Segments (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013		Mar. 31, 2014
Segment Reporting Information [Line Items]
Net sales	[1]	$ 366,714	$ 332,727	$ 693,148		$ 625,306
Gross profit	[1]	69,763	65,588	130,621		121,938
Segment Adjusted EBITDA		55,200	50,518	100,328		93,994
Interest expense, net	[1]	5,044	4,721	10,095		9,450
Depreciation and amortization		16,374	15,885	32,400		31,710
Equity in net income (loss) of unconsolidated affiliates	[1]	(62)	(192)	(724)		(518)
Capital expenditures		8,164	8,419	15,596	[1]	21,561	[1]
Investment in unconsolidated affiliates		28,405		28,405				$ 23,624
Total identifiable assets	[1]	1,068,160		1,068,160				989,567
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total identifiable assets		(15,458)		(15,458)				(13,308)
Domestic Segment [Member]
Segment Reporting Information [Line Items]
Net sales		319,776	295,107	609,401		549,634
Gross profit		65,574	58,073	119,641		107,804
Segment Adjusted EBITDA		53,904	45,290	94,896		83,426
Interest expense, net		5,020	4,667	10,062		9,360
Depreciation and amortization		14,937	14,550	29,595		28,993
Equity in net income (loss) of unconsolidated affiliates		251	114	404		114
Capital expenditures		7,869	6,926	14,788		17,864
Investment in unconsolidated affiliates		8,623		8,623				5,202
Domestic Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total identifiable assets		962,465		962,465				889,263
International Segment [Member]
Segment Reporting Information [Line Items]
Net sales		46,938	37,620	83,747		75,672
Gross profit		4,189	7,515	10,980		14,134
Segment Adjusted EBITDA		1,296	5,228	5,432		10,568
Interest expense, net		24	54	33		90
Depreciation and amortization		1,437	1,335	2,805		2,717
Equity in net income (loss) of unconsolidated affiliates		(313)	(306)	(1,128)		(632)
Capital expenditures		295	$ 1,493	808		$ 3,697
Investment in unconsolidated affiliates		19,782		19,782				18,422
International Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total identifiable assets		$ 121,153		$ 121,153				$ 113,612
[1]	See Note 2. Restatement of Previously Issued Financial Statements.

Business Segments Information90

Business Segments Information - Schedule of Reconciliation of Segment EBITDA and Segment Adjusted EBITDA to Net Income (Detail) - USD ($) $ in Thousands		Jun. 28, 2013	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Segment Reporting Information [Line Items]
Net income	[1]		$ 16,844		$ 14,740		$ 25,410		$ 27,714
Depreciation and amortization			16,374		15,885		32,400		31,710
Interest expense	[1]		5,044		4,721		10,095		9,450
Income tax expense	[1]		8,926		8,928		16,819		18,139
Derivative fair value adjustment			(67)		(319)		(163)		(238)
Loss (gain) on disposal of assets or businesses		$ 4,848	(281)	[1]	(204)	[1]	(345)	[1]	4,532	[1]
ESOP deferred compensation			2,687		2,506		5,374		5,026
Segment Adjusted EBITDA			55,200		50,518		100,328		93,994
Domestic Segment [Member]
Segment Reporting Information [Line Items]
Net income			17,603		12,263		25,446		24,097
Depreciation and amortization			14,937		14,550		29,595		28,993
Interest expense			5,020		4,667		10,062		9,360
Income tax expense			10,897		9,778		18,311		18,369
Segment EBITDA			48,457		41,258		83,414		80,819
Derivative fair value adjustment			67		319		163		238
Loss (gain) on disposal of assets or businesses			251		186		311		(4,546)
Unconsolidated affiliates interest, tax, depreciation and amortization			291		1		540		2
Contingent consideration remeasurement			20		40		2		129
Stock-based compensation			2,131		980		4,377		1,640
ESOP deferred compensation							5,374		5,026
ESOP deferred compensation			2,687		2,506
Transaction costs(b)							715		118
Segment Adjusted EBITDA			53,904		45,290		94,896		83,426
Domestic Segment [Member] | South American, BaySaver and Tigre-ADS USA Joint Venture [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization			14,937		14,550		29,595		28,993
International Segment [Member]
Segment Reporting Information [Line Items]
Net income			1,394		4,394		2,992		7,109
Depreciation and amortization			1,437		1,335		2,805		2,717
Interest expense			24		54		33		90
Income tax expense			(1,971)		(850)		(1,492)		(230)
Segment EBITDA			884		4,933		4,338		9,686
Foreign currency transaction losses			(205)		(181)		(75)		(87)
Loss (gain) on disposal of assets or businesses			30		18		34		14
Unconsolidated affiliates interest, tax, depreciation and amortization			587		458		1,135		955
Segment Adjusted EBITDA			1,296		5,228		5,432		10,568
International Segment [Member] | South American, BaySaver and Tigre-ADS USA Joint Venture [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization			$ 1,437		$ 1,335		$ 2,805		$ 2,717
[1]	See Note 2. Restatement of Previously Issued Financial Statements.