Advanced Drainage Systems (WMS) 10-Q 31 May 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2015	Apr. 29, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
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	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		54,446,402

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Current assets:
Cash	$ 6,412	$ 3,623
Receivables (less allowance for doubtful accounts of $4,516 and $5,423, respectively)	171,768	154,294
Inventories	204,131	269,842
Deferred income taxes and other current assets	19,965	18,972
Total current assets	402,276	446,731
Property, plant and equipment, net	387,654	377,067
Other assets:
Goodwill	100,205	98,679
Intangible assets, net	61,492	58,055
Other assets	49,220	61,167
Total assets	1,000,847	1,041,699
Current liabilities:
Current maturities of debt obligations	35,860	9,580
Current maturities of capital lease obligations	18,374	15,731
Accounts payable	74,000	111,893
Other accrued liabilities	75,070	54,349
Accrued income taxes	8,171	6,041
Total current liabilities	211,475	197,594
Long-term debt obligation	301,565	390,315
Long-term capital lease obligations	56,265	45,503
Deferred tax liabilities	60,567	65,088
Other liabilities	29,299	28,602
Total liabilities	$ 659,171	$ 727,102
Commitments and contingencies (see Note 9)
Mezzanine equity:
Redeemable convertible preferred stock: $0.01 par value; 47,070 shares authorized; 44,170 shares issued; 24,899 and 25,639 shares outstanding, respectively	$ 311,240	$ 320,490
Deferred compensation - unearned ESOP shares	(207,154)	(212,469)
Redeemable noncontrolling interest in subsidiaries	7,166
Total mezzanine equity	111,252	108,021
Stockholders' equity:
Common stock; $0.01 par value: 1,000,000 shares authorized; 153,560 shares issued; 54,237 and 53,522 shares outstanding, respectively	12,393	12,393
Paid-in capital	713,695	700,977
Common stock in treasury, at cost	(441,822)	(445,065)
Accumulated other comprehensive loss	(26,122)	(15,521)
Retained deficit	(42,101)	(62,621)
Total ADS stockholders' equity	216,043	190,163
Noncontrolling interest in subsidiaries	14,381	16,413
Total stockholders' equity	230,424	206,576
Total liabilities, mezzanine equity and stockholders' equity	$ 1,000,847	$ 1,041,699

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Allowance for doubtful accounts	$ 4,516	$ 5,423
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	153,560,000	153,560,000
Common stock, shares outstanding	54,237,000	53,522,000
Redeemable Convertible Preferred Stock [Member]
Mezzanine equity, par value	$ 0.01	$ 0.01
Mezzanine equity, shares authorized	47,070,000	47,070,000
Mezzanine equity, shares issued	44,170,000	44,170,000
Mezzanine equity, shares outstanding	24,899,000	25,639,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 312,827	$ 279,871	$ 1,045,280	$ 973,019
Cost of goods sold	239,504	230,693	815,636	793,220
Gross profit	73,323	49,178	229,644	179,799
Operating expenses:
Selling	21,880	19,913	65,701	59,705
General and administrative	25,776	14,115	69,207	43,756
(Gain) loss on disposal of assets or businesses	(603)	193	558	538
Intangible amortization	2,182	2,328	7,049	7,551
Income from operations	24,088	12,629	87,129	68,249
Other expense:
Interest expense	4,723	4,631	13,956	14,726
Derivative losses and other expense, net	2,561	5,556	18,333	5,100
Income before income taxes	16,804	2,442	54,840	48,423
Income tax expense	8,100	3,407	19,839	20,226
Equity in net loss of unconsolidated affiliates	917	988	935	1,712
Net income (loss)	7,787	(1,953)	34,066	26,485
Less net (loss) income attributable to noncontrolling interest	(189)	1,372	4,481	4,400
Net income (loss) attributable to ADS	7,976	(3,325)	29,585	22,085
Accretion of Redeemable noncontrolling interest	(329)		(586)
Change in fair value of redeemable convertible preferred stock				(11,054)
Dividends to redeemable convertible preferred stockholders	(349)	(298)	(1,082)	(377)
Dividends paid to unvested restricted stockholders	(6)	(9)	(18)	(9)
Net income (loss) available to common stockholders and participating securities	7,292	(3,632)	27,899	10,645
Undistributed income allocated to participating securities	(479)		(2,159)	(995)
Net income (loss) available to common stockholders	$ 6,813	$ (3,632)	$ 25,740	$ 9,650
Weighted average common shares outstanding:
Basic	54,133	52,986	53,880	50,691
Diluted	54,527	52,986	60,694	51,206
Net income (loss) per share:
Basic	$ 0.13	$ (0.07)	$ 0.48	$ 0.19
Diluted	0.12	(0.07)	0.46	0.19
Cash dividends declared per share	$ 0.05	$ 0.04	$ 0.15	$ 0.04

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 7,787	$ (1,953)	$ 34,066	$ 26,485
Other comprehensive loss:
Currency translation	(2,788)	(3,966)	(13,258)	(7,398)
Total other comprehensive loss	(2,788)	(3,966)	(13,258)	(7,398)
Comprehensive income (loss)	4,999	(5,919)	20,808	19,087
Less other comprehensive income (loss) attributable to noncontrolling interest, net of tax	(349)	(1,761)	(2,657)	(2,668)
Less net (loss) income attributable to noncontrolling interest	(189)	1,372	4,481	4,400
Total comprehensive income (loss) attributable to ADS	$ 5,537	$ (5,530)	$ 18,984	$ 17,355

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Statement of Cash Flows [Abstract]
Cash Flows from Operating Activities	$ 129,441	$ 90,252
Cash Flows from Investing Activities
Capital expenditures	(29,970)	(21,281)
Proceeds from sale of assets or businesses		294
Cash paid for acquisitions, net of cash acquired	(3,188)
Investment in unconsolidated affiliate		(7,566)
Additions of capitalized software	(1,504)	(601)
Proceeds from note receivable to related party	3,854
Issuance of note receivable to related party	(3,854)
Other investing activities	(741)	(212)
Net cash used in investing activities	(35,403)	(29,366)
Cash Flows from Financing Activities
Proceeds from Revolving Credit Facility	322,700	250,200
Payments on Revolving Credit Facility	(378,300)	(359,500)
Payments on term loan	(6,250)	(4,375)
Proceeds from notes, mortgages, and other debt	6,563
Payments of notes, mortgages, and other debt	(7,183)	(1,948)
Payments on capital lease obligation	(14,906)	(6,619)
Payments for deferred initial public offering costs		(6,479)
Proceeds from initial public offering of common stock, net of underwriter discounts and commissions		79,131
Cash dividends paid	(12,671)	(4,254)
Other financing activities	231	205
Net cash used in financing activities	(89,816)	(53,639)
Effect of exchange rate changes on cash and cash equivalents	(1,433)	(425)
Net change in cash	2,789	6,822
Cash at beginning of period	3,623	3,931
Cash at end of period	$ 6,412	$ 10,753

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Common Stock in Treasury [Member]	Paid In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earning (Deficit) [Member]	Total ADS Stockholders' Equity [Member]	Non-controlling Interest in Subsidiaries [Member]
Beginning Balance, Value at Mar. 31, 2014	$ (414,702)	$ 11,957	$ (448,439)	$ 12,438	$ (6,830)	$ (2,412)	$ (433,286)	$ 18,584
Net income	26,485					22,085	22,085	4,400
Other comprehensive loss	(7,398)				(4,730)		(4,730)	(2,668)
Redeemable convertible preferred stock dividends	(256)					(256)	(256)
Common stock dividend	(2,127)					(2,127)	(2,127)
Dividend paid to noncontrolling interest holder	(1,871)							(1,871)
Allocation of ESOP shares to participants for compensation	(1,999)			(1,999)			(1,999)
Exercise of common stock options	606		388	218			606
Redemption of common shares to exercise stock options			(93)	93
Stock-based compensation	2,956			2,956			2,956
Restricted stock awards	2,362		531	1,831			2,362
Initial Public Offering (IPO)	72,196	53		72,143			72,196
Reclassification of liability classified stock options upon IPO	1,522			1,522			1,522
Purchase of common stock	(3)		(3)				(3)
ESOP distributions in common stock	4,154		1,137	3,017			4,154
Adjustments to Redeemable convertible preferred stock fair value measurement	(11,054)			(13,077)		2,023	(11,054)
Adjustments to Redeemable common stock fair value measurement	(65,921)					(65,921)	(65,921)
Termination of redemption feature upon IPO	615,040	383		614,657			615,040
Ending Balance, Value at Dec. 31, 2014	219,990	$ 12,393	$ (446,479)	693,799	(11,560)	(46,608)	201,545	18,445
Beginning Balance, Shares at Mar. 31, 2014		109,951	100,810
Exercise of common stock options, Shares			(87)
Redemption of common shares to exercise stock options, Shares			7
Restricted stock awards, Shares			(119)
Initial Public Offering (IPO), Shares		5,289
Purchase of common stock, Shares		0	0
ESOP distributions in common stock, Shares			(255)
Termination of redemption feature upon IPO, Shares		38,320
Ending Balance, Shares at Dec. 31, 2014		153,560	100,356
Beginning Balance, Value at Mar. 31, 2015	206,576	$ 12,393	$ (445,065)	700,977	(15,521)	(62,621)	190,163	16,413
Net income	33,816					29,585	29,585	4,231
Other comprehensive loss	(13,258)				(10,601)		(10,601)	(2,657)
Redeemable convertible preferred stock dividends	(967)					(967)	(967)
Common stock dividend	(8,098)					(8,098)	(8,098)
Dividend paid to noncontrolling interest holder	(3,606)							(3,606)
Allocation of ESOP shares to participants for compensation	4,060			4,060			4,060
Exercise of common stock options	848		404	444			848
Stock-based compensation	1,330			1,330			1,330
Restricted stock awards	833		309	524			833
ESOP distributions in common stock	9,250		2,530	6,720			9,250
Acquisition of Redeemable noncontrolling interest	0	0	0	0	0	0	0	0
Accretion of Redeemable noncontrolling interest	(360)			(360)			(360)
Ending Balance, Value at Dec. 31, 2015	$ 230,424	$ 12,393	$ (441,822)	$ 713,695	$ (26,122)	$ (42,101)	$ 216,043	$ 14,381
Beginning Balance, Shares at Mar. 31, 2015		153,560	100,038
Exercise of common stock options, Shares			(77)
Restricted stock awards, Shares			(69)
ESOP distributions in common stock, Shares			(569)
Acquisition of Redeemable noncontrolling interest, Shares		0	0
Ending Balance, Shares at Dec. 31, 2015		153,560	99,323

Consolidated Statements of Sto8

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]
Common stock dividend per share	$ 0.05	$ 0.04	$ 0.15	$ 0.04

Consolidated Statements of Mezz

Consolidated Statements of Mezzanine Equity - USD ($) shares in Thousands, $ in Thousands	Total	Redeemable Non-controlling Interest in Subsidiaries [Member]	Redeemable Common Stock [Member]	Redeemable Convertible Preferred Stock [Member]	Deferred Compensation - Unearned ESOP Shares [Member]	Total Mezzanine Equity [Member]
Beginning Balance, Value at Mar. 31, 2014			$ 549,119	$ 291,720	$ (197,888)	$ 642,951
Allocation of ESOP shares to participants for compensation	$ (1,999)				10,063	10,063
Purchase of common stock	(3)	$ 0	0	0	0	0
ESOP distributions in common stock				(4,154)		(4,154)
Adjustments to Redeemable convertible preferred stock fair value measurement				34,903	(23,849)	11,054
Adjustments to Redeemable common stock fair value measurement			65,921			65,921
Termination of redemption feature upon IPO			$ (615,040)			(615,040)
Ending Balance, Value at Dec. 31, 2014				$ 322,469	$ (211,674)	110,795
Beginning Balance, Shares at Mar. 31, 2014			38,320	26,129	17,727
Allocation of ESOP shares to participants for compensation, Shares					(805)
Purchase of common stock, Shares			0	0	0
ESOP distributions in common stock, Shares				(332)
Termination of redemption feature upon IPO, Shares			(38,320)
Ending Balance, Shares at Dec. 31, 2014				25,797	16,922
Net income		250				250
Beginning Balance, Value at Mar. 31, 2015	108,021			$ 320,490	$ (212,469)	108,021
Allocation of ESOP shares to participants for compensation	4,060				5,315	5,315
ESOP distributions in common stock				(9,250)		(9,250)
Acquisition of Redeemable noncontrolling interest		6,330				6,330
Accretion of Redeemable noncontrolling interest		586				586
Ending Balance, Value at Dec. 31, 2015	$ 111,252	$ 7,166		$ 311,240	$ (207,154)	$ 111,252
Beginning Balance, Shares at Mar. 31, 2015				25,639	16,990
Allocation of ESOP shares to participants for compensation, Shares					(425)
ESOP distributions in common stock, Shares				(740)
Acquisition of Redeemable noncontrolling interest, Shares			0	0	0
Ending Balance, Shares at Dec. 31, 2015				24,899	16,565

Background and Summary of Signi

Background and Summary of Significant Accounting Policies	9 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Background and Summary of Significant Accounting Policies	1. BACKGROUND AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Description of Business 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. Historically, sales of the Company’s products have been higher in the first and second quarters of each fiscal year due to favorable weather and longer daylight conditions accelerating construction activity during these periods. Seasonal variations in operating results may also be impacted by inclement weather conditions, such as cold or wet weather, which can delay projects. 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 of common stock. 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 (“NYSE”) 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. 2014 Secondary Public Offering On December 9, 2014, we completed a secondary public offering of our common stock, which resulted in the sale of 10,000 shares of common stock by a certain selling stockholder of the Company at a public offering price of $21.25. We did not receive any proceeds from the sale of shares by the selling stockholder. On December 15, 2014, an additional 1,500 shares of common stock were sold by a certain selling stockholder of the Company as a result of the full exercise by the underwriters of the over-allotment option granted by the selling stockholder to the underwriters in connection with the secondary public offering. The shares were sold at the public offering price of $21.25 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 (“GAAP”). The Condensed Consolidated Balance Sheet as of March 31, 2015 was derived from audited financial statements. In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, of a normal recurring nature, necessary to present fairly its financial position as of December 31, 2015 and the results of operations for the three and nine months ended December 31, 2015 and 2014 and cash flows for the nine months ended December 31, 2015 and 2014. 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 (“Fiscal 2015 Form 10-K”). 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 BaySaver Technologies, LLC (“BaySaver”), 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 is 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. Recent Accounting Pronouncements Stock-Based Compensation With the exception of the pronouncement described above, there have been no new accounting pronouncements issued since the filing of our Fiscal 2015 Form 10-K that have significance, or potential significance, to our consolidated financial statements.

Acquisitions

Acquisitions	9 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Acquisitions	2. ACQUISITIONS On July 17, 2015, ADS Ventures, Inc. (“ADS/V”), a wholly-owned subsidiary of the Company, acquired an additional 10% of the issued and outstanding membership interests in BaySaver, increasing the Company’s total ownership interest in BaySaver to 65%, for a purchase price of $3,200, plus contingent consideration with an initial estimated fair value of $750. Concurrent with our purchase of the additional membership investment, the BaySaver joint venture agreement was amended to modify the voting rights from an equal vote for each member to a vote based upon the ownership interest. As a result, we have accounted for this transaction as a business combination with BaySaver being consolidated into our financial statements after July 17, 2015. As we had accounted for our investment in BaySaver prior to the purchase of the 10% additional membership interest under the equity method of accounting, we accounted for this business combination as a step acquisition and recognized a loss of $490 on remeasurement to fair value of our previously held investment. The loss is included in Derivative losses and other expense, net in our Condensed Consolidated Statements of Operations. The fair value of our BaySaver investment immediately before the July 17, 2015 acquisition was measured based on a combination of the discounted cash flow and guideline public company valuation methods and involves significant unobservable inputs (Level 3). These inputs include projected sales, margin, required rate of return and tax rate for the discounted cash flow method, as well as implied pricing multiples, and guideline public company group for the guideline public company method. The purchase price was determined as follows: (Amounts in thousands) Acquisition-date fair value of our prior equity interest $ 4,220 Acquisition-date fair value of noncontrolling interest 6,330 Cash paid at acquisition date 3,200 Fair value of contingent consideration 750 Total purchase price $ 14,500 The preliminary purchase price has been allocated to the estimated fair values of acquired tangible and intangible assets, assumed liabilities and goodwill. The preliminary fair value of identifiable intangible assets has been determined primarily using the income approach, which involves significant unobservable inputs (Level 3 inputs). These inputs include projected sales, margin, required rate of return and tax rate, as well as an estimated royalty rate in the cases of the developed technology and trade name and trademark intangibles. The developed technology and trade name and trademark intangibles are valued using a relief-from-royalty method. Redeemable noncontrolling interest in subsidiaries is classified as mezzanine equity in our Condensed Consolidated Balance Sheets due to a put option held by the joint venture partner which may be exercised on or after April 1, 2017. The redeemable noncontrolling interest balance will be accreted to the redemption value using the effective interest method until April 1, 2017. The excess of the preliminary purchase price over the fair value of the net assets acquired of $2,495 was allocated to goodwill, assigned to the Domestic segment, and consists primarily of the acquired workforce and sales and cost synergies the two companies anticipate realizing as a combined company. None of the goodwill is deductible for tax purposes. Certain estimated values for the acquisition, including intangible assets, goodwill and deferred taxes are not yet finalized. The preliminary purchase price allocation is as follows: (Amounts in thousands) Cash $ 12 Other current assets 2,262 Property, plant and equipment 164 Goodwill 2,495 Intangible assets 10,800 Other assets 152 Current liabilities (1,385 ) Total purchase price $ 14,500 The acquired identifiable intangible assets represent customer relationships of $5,400, developed technology of $4,000 and trade name and trademark of $1,400, each of which have an estimated 10-year useful life. Transaction costs were immaterial. The net sales and income before income taxes of BaySaver since the acquisition date included in our Condensed Consolidated Statements of Operations were $6,780, and $715, respectively. The following table contains unaudited pro forma Consolidated Statements of Operations information assuming the acquisition occurred on April 1, 2014 and includes adjustments for amortization of intangibles, interest expense and our prior equity method accounting for BaySaver. This pro forma information is presented for illustrative purposes only and is not indicative of what actual results would have been if the acquisitions had taken place on April 1, 2014 or of future results. The unaudited pro forma consolidated results are not projections of future results of operations of the combined company nor do they reflect the expected realization of any cost savings or synergies associated with the acquisition. Nine months ended December 31, (Amounts in thousands) 2015 2014 Net sales $ 1,048,879 $ 981,736 Net income attributable to ADS $ 29,623 $ 22,131 Unaudited pro forma net income attributable to ADS has been calculated after adjusting the combined results of the Company to reflect additional intangible asset amortization expense, net of related income taxes and amounts related to the noncontrolling interest, of $94 and $230, additional interest expense, net of related income taxes and amounts related to the noncontrolling interest, of $10 and $27, and the impact of our prior equity method accounting of $109 and $302, net of related income taxes, for the nine months ended December 31, 2015 and 2014, respectively.

Inventories

Inventories	9 Months Ended
	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventories	3. INVENTORIES Inventories as of December 31, 2015 and March 31, 2015 consisted of the following: (Amounts in thousands) December 31, March 31, Raw materials $ 44,403 $ 50,198 Finished goods 159,728 219,644 Total inventories $ 204,131 $ 269,842 We had no work-in-process inventories as of December 31, 2015 and March 31, 2015.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	4. GOODWILL AND INTANGIBLE ASSETS Goodwill The change in carrying amount of goodwill by reportable segment is as follows: (Amounts in thousands) Domestic International Total Balance at March 31, 2015 $ 87,507 $ 11,172 $ 98,679 Acquisition 2,495 — 2,495 Currency translation — (969 ) (969 ) Balance at December 31, 2015 $ 90,002 $ 10,203 $ 100,205 Intangible Assets Intangible assets as of December 31, 2015 and March 31, 2015 consisted of the following: December 31, 2015 March 31, 2015 (Amounts in thousands) Gross Accumulated Net Gross Accumulated Net Definite-lived intangible assets Developed technology $ 44,579 $ (28,740 ) $ 15,839 $ 40,579 $ (26,405 ) $ 14,174 Customer relationships 40,470 (21,614 ) 18,856 43,167 (26,113 ) 17,054 Patents 6,938 (4,012 ) 2,926 6,547 (3,550 ) 2,997 Non-compete and other contractual agreements 1,231 (777 ) 454 1,365 (691 ) 674 Trademarks and tradenames 15,390 (3,903 ) 11,487 14,248 (3,051 ) 11,197 Total definite-lived intangible assets 108,608 (59,046 ) 49,562 105,906 (59,810 ) 46,096 Indefinite-lived intangible assets Trademarks 11,930 — 11,930 11,959 — 11,959 Total intangible assets $ 120,538 $ (59,046 ) $ 61,492 $ 117,865 $ (59,810 ) $ 58,055

Fair Value Measurement

Fair Value Measurement	9 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurement	5. 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 December 31, 2015 and March 31, 2015 were as follows: December 31, 2015 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets - currency forward contracts $ 47 $ — $ 47 $ — Total assets at fair value on a recurring basis $ 47 $ — $ 47 $ Liabilities: Derivative liability - interest rate swaps $ 326 $ — $ 326 $ — Derivative liability - diesel fuel contracts 3,639 — 3,639 — Derivative liability - propylene swaps 12,552 — 12,552 — Contingent consideration for acquisitions 2,726 — — 2,726 Total liabilities at fair value on a recurring basis $ 19,243 $ — $ 16,517 $ 2,726 March 31, 2015 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets - currency forward contracts $ 28 $ — $ 28 $ — Total assets at fair value on a recurring basis $ 28 $ — $ 28 $ — Liabilities : Derivative liability - interest rate swaps $ 765 $ — $ 765 $ — Derivative liability - diesel fuel contracts 2,841 — 2,841 — Derivative liability - propylene swaps 5,142 — 5,142 — Contingent consideration for acquisitions 2,444 — — 2,444 Total liabilities at fair value on a recurring basis $ 11,192 $ — $ 8,748 $ 2,444 Changes in the fair value of recurring fair value measurements using significant unobservable inputs (Level 3) for the three and nine months ended December 31, 2015 and 2014 were as follows: Three months ended December 31, 2015 and 2014 (Amounts in thousands) Contingent Balance at September 30, 2015 $ 2,869 Change in fair value 14 Payments of contingent consideration liability (157 ) Balance at December 31, 2015 $ 2,726 (Amounts in thousands) Contingent Balance at September 30, 2014 $ 2,526 Change in fair value (7 ) Payments of contingent consideration liability (154 ) Balance at December 31, 2014 $ 2,365 Nine months ended December 31, 2015 and 2014 (amounts in thousands) Contingent Balance at March 31, 2015 $ 2,444 Acquisition 750 Change in fair value 114 Payments of contingent consideration liability (582 ) Balance at December 31, 2015 $ 2,726 Nine Months Ended December 31, 2014 Redeemable Deferred convertible compensation (amounts in thousands) Contingent Redeemable preferred - unearned 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 (5 ) 65,921 34,903 (23,849 ) 76,970 Payments of contingent consideration liability (528 ) — — — (528 ) Transfer from Level 3 — (615,040 ) (326,623 ) 217,346 (724,317 ) Balance at December 31, 2014 $ 2,365 $ — $ — $ — $ 2,365 For the nine months ended December 31, 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 shares 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. Background and Summary of 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 nine months ended December 31, 2015 and 2014, respectively. Valuation of our Contingent Consideration for Acquisitions The fair values of the contingent consideration payables for prior period acquisitions 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 to the present value using a market discount rate. The fair value of the contingent consideration liability related to the BaySaver acquisition was calculated based on a discounted cash flow model, whereby the probability-weighted estimated future payment value is discounted to the present value using a market discount rate. The categorization of the framework used to price these liabilities 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 Prior to July 2014, the Company had 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 were 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 was 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”), was 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 was 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. Prior to July 2014, our Redeemable convertible preferred stock was 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. 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 was 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 December 31, 2015, 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 IPO. 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.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Dec. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	6. 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 ADS Mexicana for financial reporting purposes. During the three and nine months ended December 31, 2015 and 2014, ADS Mexicana compensated certain owners and former owners of Grupo Altima, the joint venture partner of ADS Mexicana, for consulting services related to the operations of the business. These cash payments totaled $104 and $203 for the three and nine months ended December 31, 2015, respectively, and $102 and $271 for the three and nine months ended December 31, 2014, respectively. Occasionally, ADS and ADS Mexicana jointly enter into agreements for pipe sales with their related parties. There were no such transactions during the three and nine months ended December 31, 2015 and $1,125 and $3,464 for the three and nine months ended December 31, 2014, respectively. Outstanding receivables related to these sales were $361 and $1,005 as of December 31, 2015 and March 31, 2015, respectively. In April 2015, ADS Mexicana borrowed $3,000 under a revolving credit facility arrangement with Scotia Bank and loaned that amount to ADS, and such loan was repaid in May 2015. In June 2015, ADS Mexicana borrowed $3,854 under the Scotia Bank credit facility and loaned it to an entity owned by a Grupo Altima owner, and such loan was repaid in July 2015. ADS does not guarantee the borrowings from this facility and therefore, does not anticipate any required contributions related to the balance of this credit facility. 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 The Tuberias Tigre – ADS Limitada joint venture (“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 $6,844 as of December 31, 2015. The maximum borrowings permitted under the South American Joint Venture’s credit facility are $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 December 31, 2015 and March 31, 2015, the outstanding principal balance of the credit facility including letters of credit was $13,700 and $13,600, respectively. The weighted average interest rate as of December 31, 2015 was 3.39% on U.S. dollar denominated loans and 7.30% 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 which were $236 and $1,117 for the three and nine months ended December 31, 2015, respectively and $185 and $648 for the three and nine months ended December 31, 2014. As of December 31, 2015, ADS has a receivable from the South American Joint Venture of $254. BaySaver BaySaver 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. ADS owns 65% of the outstanding membership interests of BaySaver and consolidates its interest in BaySaver. 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	9 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Debt	7. DEBT Long-term debt as of December 31, 2015 and March 31, 2015 consisted of the following: (amounts in thousands) December 31, March 31, Bank Term Loans: Revolving Credit Facility - ADS $ 149,500 $ 205,100 Term Note 85,000 91,250 Senior Notes payable 100,000 100,000 Industrial revenue bonds 2,925 3,545 Total 337,425 399,895 Current maturities (35,860 ) (9,580 ) Long-term debt obligations $ 301,565 $ 390,315 ADS Mexicana Scotia Bank Revolving Credit Facility On December 11, 2014, our joint venture, ADS Mexicana, entered into a credit agreement with Scotia Bank. The credit agreement provides for revolving loans up to a maximum aggregate principal amount of $5,000. The proceeds of the revolving credit facility have primarily been used for short term investments and are available for working capital needs. The interest rates of the revolving credit facilities are determined by LIBOR rates, Tasa de Interes Interbancaria de Equilibrio (TIIE) or the Costos de Captacion rates, plus an applicable margin. The Scotia Bank revolving credit facility matures on December 11, 2017. The obligations under the revolving credit facility are not guaranteed by ADS. As of December 31, 2015, there was no outstanding principal drawn on the Scotia Bank revolving credit facility with $5,000 available to be drawn.

Derivative Transactions

Derivative Transactions	9 Months Ended
	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Transactions	8. 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. Contract settlement gains and losses on collars, commodity swaps and foreign exchange forward contracts as well as 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 Derivative losses and other expense, net. The Company recognized (losses) and gains on mark-to-market adjustments for changes in fair value on derivative contracts of $1,784 and $(6,054) for the three months ended December 31, 2015 and 2014, respectively, and $(7,750) and $(6,217) for the nine months ended December 31, 2015 and 2014, respectively. The fair value of the derivatives is included in the Condensed Consolidated Balance sheet at December 31, 2015 and March 31, 2015 as follows: December 31, 2015 Assets Liabilities (Amounts in thousands) Receivables Other Other accrued Other Interest rate swaps $ — $ — $ (326 ) $ — Foreign exchange forward contracts 47 — — — Diesel fuel option collars and swaps — — (3,364 ) (275 ) Propylene swaps — — (11,704 ) (848 ) March 31, 2015 Assets Liabilities (Amounts in thousands) Receivables Other Other accrued Other Interest rate swaps $ — $ — $ (150 ) $ (615 ) Foreign exchange forward contracts 28 — — — Diesel fuel option collars and swaps — — (1,883 ) (958 ) Propylene swaps — — (4,412 ) (730 )

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	9. 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 resin over the period January 2016 through December 2016 at a committed purchase cost of $24,240. Litigation On July 29, 2015, a putative stockholder class action, Christopher Wyche, individually and on behalf of all others similarly situated v. Advanced Drainage Systems, Inc., et al. (Case No. 1:15-cv-05955-KPF), was commenced in the U.S. District Court for the Southern District of New York, naming the Company, along with Joseph A. Chlapaty, the Company’s Chief Executive Officer, and Mark B. Sturgeon, the Company’s former Chief Financial Officer, as defendants and alleging violations of the federal securities laws. An amended complaint was filed on April 28, 2016. The amended complaint alleges that the Company made material misrepresentations and/or omissions of material fact in its public disclosures during the period from July 25, 2014 through March 29, 2016, in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder. Plaintiffs seek an unspecified amount of monetary damages on behalf of the putative class and an award of costs and expenses, including counsel fees and expert fees. The Company believes that it has valid and meritorious defenses and will vigorously defend against these allegations, but litigation is subject to many uncertainties and the outcome of this matter is not predictable with assurance. While it is reasonably possible that this matter ultimately could be decided unfavorably to the Company, the Company is currently unable to estimate the range of the possible losses, but they could be material. On August 12, 2015, the SEC Division of Enforcement (“Enforcement Division”) informed the Company that it was conducting an informal inquiry with respect to the Company. As part of this inquiry, the Enforcement Division requested the voluntary production of certain documents generally related to the Company’s accounting practices. Subsequent to the initial voluntary production request, the Company received document subpoenas from the Enforcement Division pursuant to a formal order of investigation. The Company has from the outset cooperated with the Enforcement Division’s investigation and intends to continue to do so. While it is reasonably possible that this investigation ultimately could be resolved unfavorably to the Company, the Company is currently unable to estimate the range of possible losses, but they could be material. We are involved from time to time in various legal proceedings that arise in the ordinary course of our business, including but not limited to commercial disputes, environmental matters, employee related claims, intellectual property disputes and litigation in connection with transactions including acquisitions and divestitures. We believe that such litigation, claims, and administrative proceedings will not have a material adverse impact on our financial position or our results of operations. We record a liability when a loss is considered probable, and the amount can be reasonably estimated. In management’s opinion, none of these proceedings are material in relation to our consolidated operations, cash flows, or financial position, and we have adequate accrued liabilities to cover our estimated probable loss exposure.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Accumulated Other Comprehensive Loss	10. ACCUMULATED OTHER COMPREHENSIVE LOSS The following table presents the changes in the balance of Accumulated other comprehensive loss (“AOCL”) for the nine months ending December 31, which consists entirely of foreign currency translation gains (losses): (Amounts in thousands) Accumulated Balance at April 1, 2014 $ (6,830 ) Other comprehensive loss (4,730 ) Balance at December 31, 2014 $ (11,560 ) Balance at April 1, 2015 (15,521 ) Other comprehensive loss (10,601 ) Balance at December 31, 2015 $ (26,122 )

Income Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	11. 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 and other onetime charges, as well as discrete events, such as provision to return adjustments. For the nine months ended December 31, 2015 and 2014, the Company utilized an effective tax rate of 36.2% and 41.8%, respectively, to calculate its provision for income taxes. These rates are higher than the federal statutory rate of 35% due to state and local taxes, partially offset by foreign income taxed at lower rates, and in the case of the nine months ended December 31, 2015, the reversal of uncertain tax position accruals as a result of the lapse of the statute of limitations.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	9 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	12. NET INCOME (LOSS) PER SHARE Basic net income (loss) 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 (loss) 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 (loss) 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 (loss) per share, income available to common shareholders used in the basic net income (loss) 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 (loss) 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 December 31, 2015, if dilutive. For purposes of the calculation of diluted net income (loss) 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. Prior to the effective date of the IPO, the Company’s Redeemable common stock was included in the weighted-average number of common shares outstanding for calculating basic and diluted net income (loss) per share. The following table presents information necessary to calculate net income (loss) per share for the three and nine months ended December 31, 2015 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 Nine Months Ended (Amounts in thousands, except per share data) 2015 2014 2015 2014 Net income (loss) per share - Basic Net income (loss) attributable to ADS $ 7,976 $ (3,325 ) $ 29,585 $ 22,085 Adjustment for: Accretion of redeemable noncontrolling interest (329 ) — (586 ) — Change in fair value of redeemable convertible preferred stock — — — (11,054 ) Dividends to redeemable convertible preferred stock (349 ) (298 ) (1,082 ) (377 ) Dividends paid to unvested restricted stockholders (6 ) (9 ) (18 ) (9 ) Net income (loss) available to common stockholders and participating securities 7,292 (3,632 ) 27,899 10,645 Undistributed income allocated to participating securities (479 ) — (2,159 ) (995 ) Net income (loss) available to common stockholders - Basic 6,813 (3,632 ) 25,740 9,650 Weighted average number of common shares outstanding - Basic 54,133 52,986 53,880 50,691 Net income (loss) per common share - Basic $ 0.13 $ (0.07 ) $ 0.48 $ 0.19 Net income (loss) per share - Diluted Net income (loss) available to common stockholders - Basic $ 6,813 $ (3,632 ) $ 25,740 $ 9,650 Amount allocated to participating preferred stockholders — — 2,116 — Preferred stock dividends, net of tax — — 703 — Tax benefit on an as if converted common dividend — — 107 — Additional compensation for leverage ESOP — — (506 ) — Net income (loss) available to common stockholders - Diluted 6,813 (3,632 ) 28,160 9,650 Weighted average number of common shares outstanding - Basic 54,133 52,986 53,880 50,691 Assumed conversion of preferred stock — — 6,417 — Assumed exercise of stock options 394 — 397 515 Weighted average number of common shares outstanding - Diluted 54,527 52,986 60,694 51,206 Net income (loss) per common share - Diluted $ 0.12 $ (0.07 ) $ 0.46 $ 0.19 Potentially dilutive securities excluded as anti-dilutive 6,218 6,560 — 3,808

Business Segments Information

Business Segments Information	9 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Business Segments Information	13. 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 Our Domestic segment manufactures and markets products throughout the United States. We maintain and serve these markets through strong product distribution relationships with many of the largest national and independent waterworks distributors, major national retailers as well as an extensive network of hundreds of small to medium-sized distributors across the U.S. We also sell through a broad variety of buying groups and co-ops in the United States. Products include Singlewall pipe, N-12 HDPE pipe sold into the Storm sewer and Infrastructure markets, high performance PP pipe sold into the Storm sewer and sanitary sewer markets, and our broad line of Allied Products including StormTech, Nyloplast, Arc Septic Chambers, Inserta Tee, BaySaver filters and water quality structures, Fittings, and FleXstorm. Our Domestic segment sales are diversified across all regions of the country. International Our International segment manufactures and markets products in regions outside of the United States, with a growth strategy focused on our owned facilities in Canada and through our joint-ventures, with local partners in Mexico, Central America and South America. Our joint venture strategy provides us with local and regional access to new markets such as Brazil, Chile, Argentina, Peru and Colombia. Our Mexican joint venture through ADS Mexicana primarily serves the Mexican markets, while our South American Joint Venture is our primary channel to serve the South American markets. Our product line includes Singlewall pipe, N-12 HDPE pipe, and high performance PP pipe. The Canadian market also sells our broad line of Allied Products, while sales in Latin America are currently concentrated in fittings and Nyloplast. 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 nine months ended December 31, 2015 and 2014, respectively: Three Months Ended December 31, Nine Months Ended December 31, (Amounts in thousands) 2015 2014 2015 2014 Domestic Pipe $ 196,162 $ 179,979 $ 654,987 $ 637,728 Allied Products 70,588 59,236 237,228 210,888 Total domestic 266,750 239,215 892,215 848,616 International Pipe 34,451 34,171 121,368 102,320 Allied Products 11,626 6,485 31,697 22,083 Total international 46,077 40,656 153,065 124,403 Total net sales $ 312,827 $ 279,871 $ 1,045,280 $ 973,019 The following sets forth certain additional financial information attributable to our reportable segments for the three and nine months ended December 31, 2015 and 2014, respectively: Three Months Ended December 31, Nine Months Ended December 31, (Amounts in thousands) 2015 2014 2015 2014 Net Sales Domestic $ 266,750 $ 239,215 $ 892,215 $ 848,616 International 46,077 40,656 153,065 124,403 Total $ 312,827 $ 279,871 $ 1,045,280 $ 973,019 Gross Profit Domestic 64,948 41,764 198,082 161,405 International 8,375 7,414 31,562 18,394 Total $ 73,323 $ 49,178 $ 229,644 $ 179,799 Segment Adjusted EBITDA Domestic 43,996 30,298 141,946 125,195 International 4,201 3,500 19,005 8,932 Total $ 48,197 $ 33,798 $ 160,951 $ 134,127 Interest expense, net Domestic 4,606 4,613 13,544 14,675 International 117 18 412 51 Total $ 4,723 $ 4,631 $ 13,956 $ 14,726 Depreciation and amortization Domestic 15,221 14,742 46,880 44,338 International 2,081 1,376 6,427 4,181 Total $ 17,302 $ 16,118 $ 53,307 $ 48,519 Equity in net income (loss) of unconsolidated affiliates Domestic (99 ) (92 ) 224 312 International (818 ) (896 ) (1,159 ) (2,024 ) Total $ (917 ) $ (988 ) $ (935 ) $ (1,712 ) Capital expenditures Domestic 7,446 4,673 23,921 19,461 International 2,327 1,012 6,049 1,820 Total $ 9,773 $ 5,685 $ 29,970 $ 21,281 The following sets forth certain additional financial information attributable to our reporting segments as of December 31, 2015 and March 31, 2015, respectively. December 31, March 31, 2015 Investment in unconsolidated affiliates Domestic $ 2,976 $ 7,957 International 13,739 17,081 Total $ 16,715 $ 25,038 Total identifiable assets Domestic $ 906,408 $ 942,267 International 144,571 168,624 Eliminations (50,132 ) (69,193 ) Total $ 1,000,847 $ 1,041,699 Reconciliation of Segment Adjusted EBITDA to Net (Loss) Income Three Months Ended December 31, 2015 2014 (Amounts in thousands) Domestic International Domestic International Net income (loss) $ 9,548 $ (1,761 ) $ (3,911 ) $ 1,958 Depreciation and amortization 15,221 2,081 14,742 1,376 Interest expense 4,606 117 4,613 18 Income tax expense 5,206 2,894 3,160 247 Segment EBITDA 34,581 3,331 18,604 3,599 Derivative fair value adjustment (1,733 ) (51 ) 6,310 (256 ) Foreign currency transaction losses (gains) — 569 — (561 ) (Gain) loss on disposal of assets or businesses (546 ) (57 ) 175 18 Unconsolidated affiliates interest, tax depreciation and amortization (a) 223 409 648 700 Contingent consideration remeasurement 14 — (7 ) — Stock-based compensation 714 — 1,542 — ESOP deferred stock-based compensation 3,125 — 2,690 — Restatement costs (b) 7,618 — — — Transaction costs (c) — — 336 — Segment Adjusted EBITDA $ 43,996 $ 4,201 $ 30,298 $ 3,500 a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. In addition, these amounts include our proportional share of interest, income taxes, depreciation and amortization related to our BaySaver Joint Venture prior to our acquisition of BaySaver on July 17, 2015, which was previously accounted for under the equity method of accounting. b) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with the restatement of our prior period financial statements as reflected in the Fiscal 2015 Form 10-K. c) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our secondary public offering in fiscal year 2015. Nine Months Ended December 31, 2015 2014 (Amounts in thousands) Domestic International Domestic International Net income $ 26,312 $ 7,754 $ 21,535 $ 4,950 Depreciation and amortization 46,880 6,427 44,338 4,181 Interest expense 13,544 412 14,675 51 Income tax expense 17,408 2,431 21,471 (1,245 ) Segment EBITDA 104,144 17,024 102,019 7,937 Derivative fair value adjustment 7,768 (18 ) 6,473 (256 ) Foreign currency transaction losses (gains) — 735 — (636 ) Loss (gain) on disposal of assets or businesses 795 (237 ) 486 52 Unconsolidated affiliates interest, tax depreciation and amortization (a) 769 1,501 1,188 1,835 Contingent consideration remeasurement 114 — (5 ) — Stock-based compensation 2,163 — 5,919 — ESOP deferred stock-based compensation 9,375 — 8,064 — Loss related to BaySaver step acquisition 490 — — — Restatement costs (b) 16,328 — — — Transaction costs (c) — — 1,051 — Segment Adjusted EBITDA $ 141,946 $ 19,005 $ 125,195 $ 8,932 a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. In addition, these amounts include our proportional share of interest, income taxes, depreciation and amortization related to our BaySaver Joint Venture prior to our acquisition of BaySaver on July 17, 2015, which was previously accounted for under the equity method of accounting. b) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with the restatement of our prior period financial statements as reflected in the Fiscal 2015 Form 10-K. c) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our IPO and secondary public offering in fiscal year 2015.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	9 Months Ended
	Dec. 31, 2015
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	14. SUPPLEMENTAL CASH FLOW INFORMATION During the nine months ended December 31, 2015 and 2014, the Company acquired Property, plant and equipment under capital lease and incurred lease obligations of $28,109 and $22,531, respectively.

Subsequent Events

Subsequent Events	9 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	15. SUBSEQUENT EVENTS Subsequent Events Related to the Bank Term Loans and Senior Notes Our long-term debt primarily consists of amounts outstanding under 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, and a $100,000 term note (collectively, the “Bank Term Loans”), and the $100,000 of outstanding senior promissory notes (“Senior Notes”). The amendments and consents described below that occurred between July 2015 and February 2016 related to the delay in the filing of the fiscal year 2015 Form 10-K, and the restatement of the Company’s previously issued financial statements (the “Restatement”) as reflected in the Fiscal 2015 Form 10-K, which was filed in March 2016. From July 2015 through December 2015, the Company obtained various consents from the lenders and amended the Bank Term Loans and Senior Notes. These consents and the additional amendments had the effect of: (i) extending the time for delivery of our fiscal 2015 audited financial statements and the first and second quarter fiscal 2016 quarterly financial statements to January 31, 2016, whereby an event of default was waived as long as those financial statements were delivered within the thirty day grace period after that date, (ii) modified certain definitions applicable to the Company’s affirmative and negative financial covenants, including the negative covenant on indebtedness, to accommodate the Company’s treatment of its transportation and equipment leases as capital leases rather than operating leases and to accommodate the treatment of the costs related to the Company’s restatement, and (iii) permitted the Company’s payment of quarterly dividends on common shares in June, August and December 2015. In February 2016, the Company entered into additional amended agreements related to the Bank Term Loans and Senior Notes that further extend the time for delivery of its fiscal 2015 audited financial statements and the first and second quarter fiscal 2016 quarterly financial statements, as well as to extend the time for delivery of its third quarter fiscal 2016 quarterly financial statements. The February 2016 amended agreements extended the time for delivery of the fiscal 2015 audited financial statements and the first, second and third quarter fiscal 2016 quarterly financial statements to April 1, 2016, whereby an event of default was waived as long as those financial statements were delivered by that date without regard to any grace period. As part of the February 2016 amended agreements, the lenders also consented to the Company’s payment of the previously declared annual dividend of $0.0195 per share to be paid on shares of preferred stock in March 2016. Subsequent Event Related to ADS Mexicana Scotia Bank Revolving Credit Facility On May 27, 2016, ADS Mexicana obtained a waiver on a covenant from Scotia Bank relating to ADS Mexicana failing to notify Scotia Bank of changes in legal organizational structure and payment of dividends.

Background and Summary of Sig25

Background and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Dec. 31, 2015
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 (“GAAP”). The Condensed Consolidated Balance Sheet as of March 31, 2015 was derived from audited financial statements. In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, of a normal recurring nature, necessary to present fairly its financial position as of December 31, 2015 and the results of operations for the three and nine months ended December 31, 2015 and 2014 and cash flows for the nine months ended December 31, 2015 and 2014. 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 (“Fiscal 2015 Form 10-K”).
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 BaySaver Technologies, LLC (“BaySaver”), 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 is 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.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Stock-Based Compensation With the exception of the pronouncement described above, there have been no new accounting pronouncements issued since the filing of our Fiscal 2015 Form 10-K that have significance, or potential significance, to our consolidated financial statements.

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Dec. 31, 2015
Schedule of Business Acquisitions by Acquisition, Contingent Consideration	The purchase price was determined as follows: (Amounts in thousands) Acquisition-date fair value of our prior equity interest $ 4,220 Acquisition-date fair value of noncontrolling interest 6,330 Cash paid at acquisition date 3,200 Fair value of contingent consideration 750 Total purchase price $ 14,500
Effect of Acquisitions for Unaudited Pro Forma Consolidated Statements of Operations	This pro forma information is presented for illustrative purposes only and is not indicative of what actual results would have been if the acquisitions had taken place on April 1, 2014 or of future results. The unaudited pro forma consolidated results are not projections of future results of operations of the combined company nor do they reflect the expected realization of any cost savings or synergies associated with the acquisition. Nine months ended December 31, (Amounts in thousands) 2015 2014 Net sales $ 1,048,879 $ 981,736 Net income attributable to ADS $ 29,623 $ 22,131
BaySaver [Member]
Summary of Preliminary Purchase Price Allocation	The preliminary purchase price allocation is as follows: (Amounts in thousands) Cash $ 12 Other current assets 2,262 Property, plant and equipment 164 Goodwill 2,495 Intangible assets 10,800 Other assets 152 Current liabilities (1,385 ) Total purchase price $ 14,500

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Dec. 31, 2015
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories as of December 31, 2015 and March 31, 2015 consisted of the following: (Amounts in thousands) December 31, March 31, Raw materials $ 44,403 $ 50,198 Finished goods 159,728 219,644 Total inventories $ 204,131 $ 269,842

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill by Reportable Segment	The change in carrying amount of goodwill by reportable segment is as follows: (Amounts in thousands) Domestic International Total Balance at March 31, 2015 $ 87,507 $ 11,172 $ 98,679 Acquisition 2,495 — 2,495 Currency translation — (969 ) (969 ) Balance at December 31, 2015 $ 90,002 $ 10,203 $ 100,205
Summary of Intangible Assets	Intangible assets as of December 31, 2015 and March 31, 2015 consisted of the following: December 31, 2015 March 31, 2015 (Amounts in thousands) Gross Accumulated Net Gross Accumulated Net Definite-lived intangible assets Developed technology $ 44,579 $ (28,740 ) $ 15,839 $ 40,579 $ (26,405 ) $ 14,174 Customer relationships 40,470 (21,614 ) 18,856 43,167 (26,113 ) 17,054 Patents 6,938 (4,012 ) 2,926 6,547 (3,550 ) 2,997 Non-compete and other contractual agreements 1,231 (777 ) 454 1,365 (691 ) 674 Trademarks and tradenames 15,390 (3,903 ) 11,487 14,248 (3,051 ) 11,197 Total definite-lived intangible assets 108,608 (59,046 ) 49,562 105,906 (59,810 ) 46,096 Indefinite-lived intangible assets Trademarks 11,930 — 11,930 11,959 — 11,959 Total intangible assets $ 120,538 $ (59,046 ) $ 61,492 $ 117,865 $ (59,810 ) $ 58,055

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	9 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Carried at Fair Value	Recurring Fair Value Measurements The assets and liabilities carried at fair value as of December 31, 2015 and March 31, 2015 were as follows: December 31, 2015 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets - currency forward contracts $ 47 $ — $ 47 $ — Total assets at fair value on a recurring basis $ 47 $ — $ 47 $ Liabilities: Derivative liability - interest rate swaps $ 326 $ — $ 326 $ — Derivative liability - diesel fuel contracts 3,639 — 3,639 — Derivative liability - propylene swaps 12,552 — 12,552 — Contingent consideration for acquisitions 2,726 — — 2,726 Total liabilities at fair value on a recurring basis $ 19,243 $ — $ 16,517 $ 2,726 March 31, 2015 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets - currency forward contracts $ 28 $ — $ 28 $ — Total assets at fair value on a recurring basis $ 28 $ — $ 28 $ — Liabilities : Derivative liability - interest rate swaps $ 765 $ — $ 765 $ — Derivative liability - diesel fuel contracts 2,841 — 2,841 — Derivative liability - propylene swaps 5,142 — 5,142 — Contingent consideration for acquisitions 2,444 — — 2,444 Total liabilities at fair value on a recurring basis $ 11,192 $ — $ 8,748 $ 2,444
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 nine months ended December 31, 2015 and 2014 were as follows: Three months ended December 31, 2015 and 2014 (Amounts in thousands) Contingent Balance at September 30, 2015 $ 2,869 Change in fair value 14 Payments of contingent consideration liability (157 ) Balance at December 31, 2015 $ 2,726 (Amounts in thousands) Contingent Balance at September 30, 2014 $ 2,526 Change in fair value (7 ) Payments of contingent consideration liability (154 ) Balance at December 31, 2014 $ 2,365 Nine months ended December 31, 2015 and 2014 (amounts in thousands) Contingent Balance at March 31, 2015 $ 2,444 Acquisition 750 Change in fair value 114 Payments of contingent consideration liability (582 ) Balance at December 31, 2015 $ 2,726 Nine Months Ended December 31, 2014 Redeemable Deferred convertible compensation (amounts in thousands) Contingent Redeemable preferred - unearned 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 (5 ) 65,921 34,903 (23,849 ) 76,970 Payments of contingent consideration liability (528 ) — — — (528 ) Transfer from Level 3 — (615,040 ) (326,623 ) 217,346 (724,317 ) Balance at December 31, 2014 $ 2,365 $ — $ — $ — $ 2,365

Debt (Tables)

Debt (Tables)	9 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Long-Term Debt	Long-term debt as of December 31, 2015 and March 31, 2015 consisted of the following: (amounts in thousands) December 31, March 31, Bank Term Loans: Revolving Credit Facility - ADS $ 149,500 $ 205,100 Term Note 85,000 91,250 Senior Notes payable 100,000 100,000 Industrial revenue bonds 2,925 3,545 Total 337,425 399,895 Current maturities (35,860 ) (9,580 ) Long-term debt obligations $ 301,565 $ 390,315

Derivative Transactions (Tables

Derivative Transactions (Tables)	9 Months Ended
	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Fair Value of the Derivatives Included in the Condensed Consolidated Balance Sheet	The fair value of the derivatives is included in the Condensed Consolidated Balance sheet at December 31, 2015 and March 31, 2015 as follows: December 31, 2015 Assets Liabilities (Amounts in thousands) Receivables Other Other accrued Other Interest rate swaps $ — $ — $ (326 ) $ — Foreign exchange forward contracts 47 — — — Diesel fuel option collars and swaps — — (3,364 ) (275 ) Propylene swaps — — (11,704 ) (848 ) March 31, 2015 Assets Liabilities (Amounts in thousands) Receivables Other Other accrued Other Interest rate swaps $ — $ — $ (150 ) $ (615 ) Foreign exchange forward contracts 28 — — — Diesel fuel option collars and swaps — — (1,883 ) (958 ) Propylene swaps — — (4,412 ) (730 )

Accumulated Other Comprehensi32

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Summary of Changes in Balance of Accumulated Other Comprehensive Loss	The following table presents the changes in the balance of Accumulated other comprehensive loss (“AOCL”) for the nine months ending December 31, which consists entirely of foreign currency translation gains (losses): (Amounts in thousands) Accumulated Balance at April 1, 2014 $ (6,830 ) Other comprehensive loss (4,730 ) Balance at December 31, 2014 $ (11,560 ) Balance at April 1, 2015 (15,521 ) Other comprehensive loss (10,601 ) Balance at December 31, 2015 $ (26,122 )

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	9 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Summary of Net (Loss) Income Per Share	The following table presents information necessary to calculate net income (loss) per share for the three and nine months ended December 31, 2015 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 Nine Months Ended (Amounts in thousands, except per share data) 2015 2014 2015 2014 Net income (loss) per share - Basic Net income (loss) attributable to ADS $ 7,976 $ (3,325 ) $ 29,585 $ 22,085 Adjustment for: Accretion of redeemable noncontrolling interest (329 ) — (586 ) — Change in fair value of redeemable convertible preferred stock — — — (11,054 ) Dividends to redeemable convertible preferred stock (349 ) (298 ) (1,082 ) (377 ) Dividends paid to unvested restricted stockholders (6 ) (9 ) (18 ) (9 ) Net income (loss) available to common stockholders and participating securities 7,292 (3,632 ) 27,899 10,645 Undistributed income allocated to participating securities (479 ) — (2,159 ) (995 ) Net income (loss) available to common stockholders - Basic 6,813 (3,632 ) 25,740 9,650 Weighted average number of common shares outstanding - Basic 54,133 52,986 53,880 50,691 Net income (loss) per common share - Basic $ 0.13 $ (0.07 ) $ 0.48 $ 0.19 Net income (loss) per share - Diluted Net income (loss) available to common stockholders - Basic $ 6,813 $ (3,632 ) $ 25,740 $ 9,650 Amount allocated to participating preferred stockholders — — 2,116 — Preferred stock dividends, net of tax — — 703 — Tax benefit on an as if converted common dividend — — 107 — Additional compensation for leverage ESOP — — (506 ) — Net income (loss) available to common stockholders - Diluted 6,813 (3,632 ) 28,160 9,650 Weighted average number of common shares outstanding - Basic 54,133 52,986 53,880 50,691 Assumed conversion of preferred stock — — 6,417 — Assumed exercise of stock options 394 — 397 515 Weighted average number of common shares outstanding - Diluted 54,527 52,986 60,694 51,206 Net income (loss) per common share - Diluted $ 0.12 $ (0.07 ) $ 0.46 $ 0.19 Potentially dilutive securities excluded as anti-dilutive 6,218 6,560 — 3,808

Business Segments Information (

Business Segments Information (Tables)	9 Months Ended
	Dec. 31, 2015
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 nine months ended December 31, 2015 and 2014, respectively: Three Months Ended December 31, Nine Months Ended December 31, (Amounts in thousands) 2015 2014 2015 2014 Domestic Pipe $ 196,162 $ 179,979 $ 654,987 $ 637,728 Allied Products 70,588 59,236 237,228 210,888 Total domestic 266,750 239,215 892,215 848,616 International Pipe 34,451 34,171 121,368 102,320 Allied Products 11,626 6,485 31,697 22,083 Total international 46,077 40,656 153,065 124,403 Total net sales $ 312,827 $ 279,871 $ 1,045,280 $ 973,019
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 nine months ended December 31, 2015 and 2014, respectively: Three Months Ended December 31, Nine Months Ended December 31, (Amounts in thousands) 2015 2014 2015 2014 Net Sales Domestic $ 266,750 $ 239,215 $ 892,215 $ 848,616 International 46,077 40,656 153,065 124,403 Total $ 312,827 $ 279,871 $ 1,045,280 $ 973,019 Gross Profit Domestic 64,948 41,764 198,082 161,405 International 8,375 7,414 31,562 18,394 Total $ 73,323 $ 49,178 $ 229,644 $ 179,799 Segment Adjusted EBITDA Domestic 43,996 30,298 141,946 125,195 International 4,201 3,500 19,005 8,932 Total $ 48,197 $ 33,798 $ 160,951 $ 134,127 Interest expense, net Domestic 4,606 4,613 13,544 14,675 International 117 18 412 51 Total $ 4,723 $ 4,631 $ 13,956 $ 14,726 Depreciation and amortization Domestic 15,221 14,742 46,880 44,338 International 2,081 1,376 6,427 4,181 Total $ 17,302 $ 16,118 $ 53,307 $ 48,519 Equity in net income (loss) of unconsolidated affiliates Domestic (99 ) (92 ) 224 312 International (818 ) (896 ) (1,159 ) (2,024 ) Total $ (917 ) $ (988 ) $ (935 ) $ (1,712 ) Capital expenditures Domestic 7,446 4,673 23,921 19,461 International 2,327 1,012 6,049 1,820 Total $ 9,773 $ 5,685 $ 29,970 $ 21,281 The following sets forth certain additional financial information attributable to our reporting segments as of December 31, 2015 and March 31, 2015, respectively. December 31, March 31, 2015 Investment in unconsolidated affiliates Domestic $ 2,976 $ 7,957 International 13,739 17,081 Total $ 16,715 $ 25,038 Total identifiable assets Domestic $ 906,408 $ 942,267 International 144,571 168,624 Eliminations (50,132 ) (69,193 ) Total $ 1,000,847 $ 1,041,699
Schedule of Reconciliation of Segment Adjusted EBITDA to Net (Loss) Income	Reconciliation of Segment Adjusted EBITDA to Net (Loss) Income Three Months Ended December 31, 2015 2014 (Amounts in thousands) Domestic International Domestic International Net income (loss) $ 9,548 $ (1,761 ) $ (3,911 ) $ 1,958 Depreciation and amortization 15,221 2,081 14,742 1,376 Interest expense 4,606 117 4,613 18 Income tax expense 5,206 2,894 3,160 247 Segment EBITDA 34,581 3,331 18,604 3,599 Derivative fair value adjustment (1,733 ) (51 ) 6,310 (256 ) Foreign currency transaction losses (gains) — 569 — (561 ) (Gain) loss on disposal of assets or businesses (546 ) (57 ) 175 18 Unconsolidated affiliates interest, tax depreciation and amortization (a) 223 409 648 700 Contingent consideration remeasurement 14 — (7 ) — Stock-based compensation 714 — 1,542 — ESOP deferred stock-based compensation 3,125 — 2,690 — Restatement costs (b) 7,618 — — — Transaction costs (c) — — 336 — Segment Adjusted EBITDA $ 43,996 $ 4,201 $ 30,298 $ 3,500 a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. In addition, these amounts include our proportional share of interest, income taxes, depreciation and amortization related to our BaySaver Joint Venture prior to our acquisition of BaySaver on July 17, 2015, which was previously accounted for under the equity method of accounting. b) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with the restatement of our prior period financial statements as reflected in the Fiscal 2015 Form 10-K. c) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our secondary public offering in fiscal year 2015. Nine Months Ended December 31, 2015 2014 (Amounts in thousands) Domestic International Domestic International Net income $ 26,312 $ 7,754 $ 21,535 $ 4,950 Depreciation and amortization 46,880 6,427 44,338 4,181 Interest expense 13,544 412 14,675 51 Income tax expense 17,408 2,431 21,471 (1,245 ) Segment EBITDA 104,144 17,024 102,019 7,937 Derivative fair value adjustment 7,768 (18 ) 6,473 (256 ) Foreign currency transaction losses (gains) — 735 — (636 ) Loss (gain) on disposal of assets or businesses 795 (237 ) 486 52 Unconsolidated affiliates interest, tax depreciation and amortization (a) 769 1,501 1,188 1,835 Contingent consideration remeasurement 114 — (5 ) — Stock-based compensation 2,163 — 5,919 — ESOP deferred stock-based compensation 9,375 — 8,064 — Loss related to BaySaver step acquisition 490 — — — Restatement costs (b) 16,328 — — — Transaction costs (c) — — 1,051 — Segment Adjusted EBITDA $ 141,946 $ 19,005 $ 125,195 $ 8,932 a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture and our Tigre-ADS USA Joint Venture, which are accounted for under the equity method of accounting. In addition, these amounts include our proportional share of interest, income taxes, depreciation and amortization related to our BaySaver Joint Venture prior to our acquisition of BaySaver on July 17, 2015, which was previously accounted for under the equity method of accounting. b) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with the restatement of our prior period financial statements as reflected in the Fiscal 2015 Form 10-K. c) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our IPO and secondary public offering in fiscal year 2015.

Background and Summary of Sig35

Background and Summary of Significant Accounting Policies - Additional Information (Detail)	Dec. 15, 2014USD ($)$ / sharesshares	Dec. 09, 2014USD ($)$ / sharesshares	Aug. 22, 2014$ / sharesshares	Jul. 25, 2014USD ($)$ / sharesshares	Jul. 11, 2014	Dec. 31, 2015Segment$ / sharesshares	Dec. 31, 2014USD ($)	Mar. 31, 2015$ / sharesshares
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | Segment						2
Net proceeds from initial public offering | $							$ 79,131,000
Offering price per share | $ / shares						$ 0.01		$ 0.01
Common stock, shares issued | shares						153,560,000		153,560,000
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 | shares			600,000	5,289,000
Net proceeds from initial public offering | $				$ 79,131,000
Underwriter discounts and commissions on initial public offering | $				$ 5,501,000
Share price | $ / shares			$ 16	$ 16
Secondary Public Offering [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Additional shares issued | shares		10,000,000
Offering price per share | $ / shares	$ 21.25	$ 21.25
Proceeds from sale of shares | $	$ 0	$ 0
Common stock, shares issued | shares	1,500,000

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Jul. 17, 2015	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Business Acquisition [Line Items]
Business combination equity interest remeasurement loss	$ 490
Goodwill		$ 100,205		$ 98,679
Intangible assets		108,608		105,906
Pro Forma [Member]
Business Acquisition [Line Items]
Intangible asset amortization expense, net of related income taxes and noncontrolling interest		94	$ 230
Interest expense, net of related income taxes and noncontrolling interest		10	27
Equity method investments net of related income taxes		109	$ 302
BaySaver [Member]
Business Acquisition [Line Items]
Additionally acquired percentage of ownership in joint ventures	10.00%
Purchase price	$ 3,200	14,500
Percentage of voting interests acquired	65.00%
Fair value of contingent consideration	$ 750	750
Goodwill		2,495
Net sales of acquired entity included in condensed consolidated statements of operations	6,780
Earnings from operations of acquired entity included in condensed consolidated statements of operations	715
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets		40,470		43,167
Customer Relationships [Member] | BaySaver [Member]
Business Acquisition [Line Items]
Intangible assets		$ 5,400
Intangible assets, useful life		10 years
Developed Technology [Member]
Business Acquisition [Line Items]
Intangible assets	$ 4,000	$ 44,579		40,579
Intangible assets, useful life	10 years
Trademarks and Tradenames [Member]
Business Acquisition [Line Items]
Intangible assets		15,390		$ 14,248
Trademarks and Tradenames [Member] | BaySaver [Member]
Business Acquisition [Line Items]
Intangible assets		$ 1,400
Intangible assets, useful life		10 years

Acquisition - Schedule of Busin

Acquisition - Schedule of Business Acquisitions by Acquisition, Contingent Consideration (Detail) - BaySaver [Member] - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Jul. 17, 2015
Business Acquisition [Line Items]
Acquisition-date fair value of our prior equity interest	$ 4,220
Acquisition-date fair value of noncontrolling interest	6,330
Cash paid at acquisition date	3,200
Fair value of contingent consideration	750	$ 750
Total purchase price	$ 14,500

Acquisitions - Summary of Preli

Acquisitions - Summary of Preliminary Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jul. 17, 2015	Mar. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 100,205		$ 98,679
BaySaver [Member]
Business Acquisition [Line Items]
Cash	12
Other current assets	2,262
Property, plant and equipment	164
Goodwill	2,495
Intangible assets	10,800
Other assets	152
Current liabilities	(1,385)
Total purchase price	$ 14,500	$ 3,200

Acquisitions - Effect of Acquis

Acquisitions - Effect of Acquisitions for Unaudited Pro Forma Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition, Pro Forma Information [Abstract]
Net sales	$ 1,048,879	$ 981,736
Net income attributable to ADS	$ 29,623	$ 22,131

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 44,403	$ 50,198
Finished goods	159,728	219,644
Total inventories	$ 204,131	$ 269,842

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($)	Dec. 31, 2015	Mar. 31, 2015
Inventory Disclosure [Abstract]
Work-in-process inventories	$ 0	$ 0

Goodwill and Intangible Asset42

Goodwill and Intangible Assets - Carrying Amount of Goodwill by Reportable Segment (Detail) $ in Thousands	9 Months Ended
	Dec. 31, 2015USD ($)
Goodwill [Line Items]
Beginning balance	$ 98,679
Acquisition	2,495
Currency translation	(969)
Ending balance	100,205
Domestic [Member]
Goodwill [Line Items]
Beginning balance	87,507
Acquisition	2,495
Ending balance	90,002
International Segment [Member]
Goodwill [Line Items]
Beginning balance	11,172
Currency translation	(969)
Ending balance	$ 10,203

Goodwill and Intangible Asset43

Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jul. 17, 2015	Mar. 31, 2015
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible	$ 108,608		$ 105,906
Intangible Assets, Gross	120,538		117,865
Accumulated Amortization	(59,046)		(59,810)
Net Intangible	49,562		46,096
Intangible assets, net	61,492		58,055
Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	11,930		11,959
Developed Technology [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible	44,579	$ 4,000	40,579
Accumulated Amortization	(28,740)		(26,405)
Net Intangible	15,839		14,174
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible	40,470		43,167
Accumulated Amortization	(21,614)		(26,113)
Net Intangible	18,856		17,054
Patents [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible	6,938		6,547
Accumulated Amortization	(4,012)		(3,550)
Net Intangible	2,926		2,997
Non-compete and Other Contractual Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible	1,231		1,365
Accumulated Amortization	(777)		(691)
Net Intangible	454		674
Trademarks and Tradenames [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible	15,390		14,248
Accumulated Amortization	(3,903)		(3,051)
Net Intangible	$ 11,487		$ 11,197

Fair Value Measurement - Summar

Fair Value Measurement - Summary of Assets and Liabilities Carried at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities & mezzanine equity at fair value on a recurring basis			$ 2,365	$ 645,849
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value on a recurring basis	$ 47	$ 28
Contingent consideration for acquisitions	2,726	2,444
Total liabilities & mezzanine equity at fair value on a recurring basis	19,243	11,192
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value on a recurring basis	47	28
Total liabilities & mezzanine equity at fair value on a recurring basis	16,517	8,748
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration for acquisitions	2,726	2,444
Total liabilities & mezzanine equity at fair value on a recurring basis	2,726	2,444
Fair Value, Measurements, Recurring [Member] | Diesel Fuel Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	3,639	2,841
Fair Value, Measurements, Recurring [Member] | Diesel Fuel Contracts [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	3,639	2,841
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	326	765
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	326	765
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets - currency forward contracts	47	28
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Forward Contracts [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets - currency forward contracts	47	28
Fair Value, Measurements, Recurring [Member] | Propylene Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	12,552	5,142
Fair Value, Measurements, Recurring [Member] | Propylene Swaps [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	$ 12,552	$ 5,142

Fair Value Measurement - Summ45

Fair Value Measurement - Summary of Changes in Fair Value of Recurring Fair Value Measurements Using Unobservable Inputs (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allocation of ESOP shares to participants			$ 4,060	$ (1,999)
Deferred Compensation - Unearned ESOP Shares [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allocation of ESOP shares to participants			5,315	10,063
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning				645,849
Allocation of ESOP shares to participants				4,391
Change in fair value				76,970
Payments of contingent consideration liability				(528)
Transfer from Level 3				(724,317)
Balance ending		$ 2,365		2,365
Level 3 [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning	$ 2,869	2,526	2,444	2,898
Acquisition			750
Change in fair value	14	(7)	114	(5)
Payments of contingent consideration liability	(157)	(154)	(582)	(528)
Balance ending	$ 2,726	$ 2,365	$ 2,726	2,365
Level 3 [Member] | Redeemable Common Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning				549,119
Change in fair value				65,921
Transfer from Level 3				(615,040)
Level 3 [Member] | Redeemable Convertible Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning				291,720
Change in fair value				34,903
Transfer from Level 3				(326,623)
Level 3 [Member] | Deferred Compensation - Unearned ESOP Shares [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning				(197,888)
Allocation of ESOP shares to participants				4,391
Change in fair value				(23,849)
Transfer from Level 3				$ 217,346

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	9 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Fair Value Disclosures [Abstract]
Fair value of assets and liabilities, additional transfers	$ 0	$ 0
Weighted average costs of capital percentage			11.00%

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015	Apr. 30, 2015	Mar. 31, 2015
Pipe Sales Joint Venture Agreement [Member]
Related Party Transaction [Line Items]
Outstanding receivables from related party	$ 361,000		$ 361,000				$ 1,005,000
Proceeds from sales	0	$ 1,125,000	0	$ 3,464,000
South American Joint Venture [Member]
Related Party Transaction [Line Items]
Outstanding receivables from related party	254,000		254,000
Maximum borrowings permitted under credit facility	19,000,000		$ 19,000,000
Credit facility, maturity date			Feb. 5, 2017
Outstanding letters of credit	13,700,000		$ 13,700,000				$ 13,600,000
Percentage of debt guarantee			50.00%
Maximum potential payment under guarantee	6,844,000		$ 6,844,000
Sales with related parties	$ 236,000	185,000	$ 1,117,000	648,000
South American Joint Venture [Member] | US Dollar Denominated Loans [Member]
Related Party Transaction [Line Items]
Weighted average interest rate	3.39%		3.39%
South American Joint Venture [Member] | Chilean Peso Denominated Loans [Member]
Related Party Transaction [Line Items]
Weighted average interest rate	7.30%		7.30%
ADS Mexicana [Member]
Related Party Transaction [Line Items]
Interest rate description for the loaned amount			ADS Mexicana borrowed $3,000 under a revolving credit facility arrangement with Scotia Bank and loaned that amount to ADS, and such loan was repaid in May 2015. In June 2015, ADS Mexicana borrowed $3,854 under the Scotia Bank credit facility and loaned it to an entity owned by a Grupo Altima owner, and such loan was repaid in July 2015. ADS does not guarantee the borrowings from this facility and therefore, does not anticipate any required contributions related to the balance of this credit facility.
ADS Mexicana [Member] | Credit Facility Arrangement with Scotia Bank [Member]
Related Party Transaction [Line Items]
Amount borrowed under revolving credit facility					$ 3,854,000	$ 3,000,000
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member]
Related Party Transaction [Line Items]
Company's ownership percentage	51.00%		51.00%
Cash payments for consulting services related to the operations of the business and a noncompete arrangement	$ 104,000	$ 102,000	$ 203,000	$ 271,000
Guarantee percentage on credit facility			100.00%
Maximum potential guarantee payments	$ 12,000,000		$ 12,000,000
Guarantee description			We are the guarantor of 100% of ADS Mexicana's credit facility
BaySaver [Member]
Related Party Transaction [Line Items]
Company's ownership percentage	65.00%		65.00%

Debt - Long-Term Debt (Detail)

Debt - Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Debt Instrument [Line Items]
Senior Notes payable	$ 100,000
Total	337,425	$ 399,895
Total	337,425	399,895
Current maturities	(35,860)	(9,580)
Long-term debt obligations	301,565	390,315
Term Note [Member]
Debt Instrument [Line Items]
Term Note	85,000	91,250
Senior Notes Payable [Member]
Debt Instrument [Line Items]
Senior Notes payable	100,000	100,000
Industrial Revenue Bonds [Member]
Debt Instrument [Line Items]
Industrial revenue bonds	2,925	3,545
Revolving Credit Facility [Member] | ADS [Member]
Debt Instrument [Line Items]
Revolving Credit Facility - ADS	$ 149,500	$ 205,100

Debt - Additional Information (

Debt - Additional Information (Detail) - Revolving Credit Facility [Member] - USD ($)	9 Months Ended
	Dec. 31, 2015	Dec. 11, 2014
Credit Facility Arrangement with Scotia Bank [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 5,000,000
Revolving credit facility, maturity date	Dec. 11, 2017
ADS Mexicana [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 12,000,000
ADS Mexicana [Member] | Credit Facility Arrangement with Scotia Bank [Member]
Debt Instrument [Line Items]
Outstanding principal amount	$ 0

Derivative Transactions - Addit

Derivative Transactions - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Unrealized Gain (Loss) on Derivatives and Commodity Contracts [Abstract]
(Losses) and gains on mark-to-market adjustments for changes in fair value on derivative	$ 1,784	$ (6,054)	$ (7,750)	$ (6,217)

Derivative Transactions - Summa

Derivative Transactions - Summary of Fair Value of the Derivatives Included in the Condensed Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Interest Rate Swaps [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	$ (326)	$ (150)
Interest Rate Swaps [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)		(615)
Foreign Exchange Forward Contracts [Member] | Receivables [Member]
Derivatives, Fair Value [Line Items]
Asset	47	28
Diesel Fuel Option Collars and Swaps [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	(3,364)	(1,883)
Diesel Fuel Option Collars and Swaps [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	(275)	(958)
Propylene Swaps [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	(11,704)	(4,412)
Propylene Swaps [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	$ (848)	$ (730)

Commitments and Contingencies (

Commitments and Contingencies (Purchase Commitments) - Additional Information (Detail)	Dec. 31, 2015USD ($)
Inventory [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Total purchase commitment	$ 24,240,000

Accumulated Other Comprehensi53

Accumulated Other Comprehensive Loss - Summary of Changes in Balance of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Beginning Balance	$ (15,521)	$ (6,830)
Other comprehensive loss	(10,601)	(4,730)
Ending Balance	$ (26,122)	$ (11,560)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	36.20%	41.80%
Federal statutory rate	35.00%

Net Income (Loss) Per Share - S

Net Income (Loss) Per Share - Summary of Net (Loss) Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Net income (loss) per share - Basic
Net income (loss) attributable to ADS	$ 7,976	$ (3,325)	$ 29,585	$ 22,085
Accretion of Redeemable noncontrolling interest	(329)		(586)
Change in fair value of redeemable convertible preferred stock				(11,054)
Dividends to redeemable convertible preferred stock	(349)	(298)	(1,082)	(377)
Dividends paid to unvested restricted stockholders	(6)	(9)	(18)	(9)
Net income (loss) available to common stockholders and participating securities	7,292	(3,632)	27,899	10,645
Undistributed income allocated to participating securities	(479)		(2,159)	(995)
Net income (loss) available to common stockholders - Basic	$ 6,813	$ (3,632)	$ 25,740	$ 9,650
Weighted average number of common shares outstanding - Basic	54,133	52,986	53,880	50,691
Net income (loss) per common share - Basic	$ 0.13	$ (0.07)	$ 0.48	$ 0.19
Net income (loss) per share - Diluted
Net income (loss) available to common stockholders - Basic	$ 6,813	$ (3,632)	$ 25,740	$ 9,650
Amount allocated to participating preferred stockholders			2,116
Preferred stock dividends, net of tax			703
Tax benefit on an as if converted common dividend			107
Additional compensation for leverage ESOP			(506)
Net income (loss) available to common stockholders - Diluted	$ 6,813	$ (3,632)	$ 28,160	$ 9,650
Weighted average number of common shares outstanding - Basic	54,133	52,986	53,880	50,691
Assumed conversion of preferred stock			$ 6,417
Assumed exercise of stock options	394		397	515
Weighted average number of common shares outstanding - Diluted	54,527	52,986	60,694	51,206
Net income (loss) per common share - Diluted	$ 0.12	$ (0.07)	$ 0.46	$ 0.19
Potentially dilutive securities excluded as anti-dilutive	6,218	6,560		3,808

Business Segment Information -

Business Segment Information - Additional Information (Detail)	9 Months Ended
	Dec. 31, 2015Segment
Segment Reporting [Abstract]
Number of reportable segments	2
Number of operating segments	2

Business Segment Information 57

Business Segment Information - Schedule of Revenue from Reportable Segments by Product Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total net sales	$ 312,827	$ 279,871	$ 1,045,280	$ 973,019
Domestic [Member]
Segment Reporting Information [Line Items]
Total net sales	266,750	239,215	892,215	848,616
Domestic [Member] | Pipe [Member]
Segment Reporting Information [Line Items]
Total net sales	196,162	179,979	654,987	637,728
Domestic [Member] | Allied Products [Member]
Segment Reporting Information [Line Items]
Total net sales	70,588	59,236	237,228	210,888
International Segment [Member]
Segment Reporting Information [Line Items]
Total net sales	46,077	40,656	153,065	124,403
International Segment [Member] | Pipe [Member]
Segment Reporting Information [Line Items]
Total net sales	34,451	34,171	121,368	102,320
International Segment [Member] | Allied Products [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 11,626	$ 6,485	$ 31,697	$ 22,083

Business Segment Information 58

Business Segment Information - Schedule of Additional Financial Information Attributable to Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 312,827	$ 279,871	$ 1,045,280	$ 973,019
Gross profit	73,323	49,178	229,644	179,799
Segment Adjusted EBITDA	48,197	33,798	160,951	134,127
Interest expense	4,723	4,631	13,956	14,726
Depreciation and amortization	17,302	16,118	53,307	48,519
Equity in net income (loss) of unconsolidated affiliates	(917)	(988)	(935)	(1,712)
Capital expenditures	9,773	5,685	29,970	21,281
Investments in unconsolidated affiliates	16,715		16,715		$ 25,038
Total identifiable assets	1,000,847		1,000,847		1,041,699
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total identifiable assets	(50,132)		(50,132)		(69,193)
Domestic [Member]
Segment Reporting Information [Line Items]
Net sales	266,750	239,215	892,215	848,616
Gross profit	64,948	41,764	198,082	161,405
Segment Adjusted EBITDA	43,996	30,298	141,946	125,195
Interest expense	4,606	4,613	13,544	14,675
Depreciation and amortization	15,221	14,742	46,880	44,338
Equity in net income (loss) of unconsolidated affiliates	(99)	(92)	224	312
Capital expenditures	7,446	4,673	23,921	19,461
Investments in unconsolidated affiliates	2,976		2,976		7,957
Domestic [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total identifiable assets	906,408		906,408		942,267
International Segment [Member]
Segment Reporting Information [Line Items]
Net sales	46,077	40,656	153,065	124,403
Gross profit	8,375	7,414	31,562	18,394
Segment Adjusted EBITDA	4,201	3,500	19,005	8,932
Interest expense	117	18	412	51
Depreciation and amortization	2,081	1,376	6,427	4,181
Equity in net income (loss) of unconsolidated affiliates	(818)	(896)	(1,159)	(2,024)
Capital expenditures	2,327	$ 1,012	6,049	$ 1,820
Investments in unconsolidated affiliates	13,739		13,739		17,081
International Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total identifiable assets	$ 144,571		$ 144,571		$ 168,624

Business Segment Information 59

Business Segment Information - Schedule of Reconciliation of Segment Adjusted EBITDA to Net (Loss) Income (Detail) - USD ($) $ in Thousands	Jul. 17, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income		$ 7,976	$ (3,325)	$ 29,585	$ 22,085
Interest expense		4,723	4,631	13,956	14,726
Income tax expense		8,100	3,407	19,839	20,226
Derivative fair value adjustment		(1,784)	6,054	7,750	6,217
(Gain) loss on disposal of assets or businesses		(603)	193	558	538
Loss related to BaySaver step acquisition	$ 490
Segment Adjusted EBITDA		48,197	33,798	160,951	134,127
Domestic [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income		9,548	(3,911)	26,312	21,535
Depreciation and amortization		15,221	14,742	46,880	44,338
Interest expense		4,606	4,613	13,544	14,675
Income tax expense		5,206	3,160	17,408	21,471
Segment EBITDA		34,581	18,604	104,144	102,019
Derivative fair value adjustment		(1,733)	6,310	7,768	6,473
(Gain) loss on disposal of assets or businesses		(546)	175	795	486
Unconsolidated affiliates interest, tax depreciation and amortization		223	648	769	1,188
Contingent consideration remeasurement		14	(7)	114	(5)
Stock-based compensation		714	1,542	2,163	5,919
ESOP deferred stock-based compensation		3,125	2,690	9,375	8,064
Loss related to BaySaver step acquisition				490
Restatement costs		7,618		16,328
Transaction costs			336		1,051
Segment Adjusted EBITDA		43,996	30,298	141,946	125,195
International Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income		(1,761)	1,958	7,754	4,950
Depreciation and amortization		2,081	1,376	6,427	4,181
Interest expense		117	18	412	51
Income tax expense		2,894	247	2,431	(1,245)
Segment EBITDA		3,331	3,599	17,024	7,937
Derivative fair value adjustment		(51)	(256)	(18)	(256)
Foreign currency transaction losses (gains)		569	(561)	735	(636)
(Gain) loss on disposal of assets or businesses		(57)	18	(237)	52
Unconsolidated affiliates interest, tax depreciation and amortization		409	700	1,501	1,835
Segment Adjusted EBITDA		$ 4,201	$ 3,500	$ 19,005	$ 8,932

Supplemental Cash Flow Inform60

Supplemental Cash Flow Information - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]
Lease obligation incurred	$ 28,109	$ 22,531

Subsequent events - Additional

Subsequent events - Additional Information (Detail) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Subsequent Event [Line Items]
Senior notes, outstanding		$ 100,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash dividends declared per share	$ 0.0195
Revolving Credit Facility [Member] | ADS Inc [Member]
Subsequent Event [Line Items]
Credit facility, borrowing capacity		325,000,000
Revolving Credit Facility [Member] | ADS Mexicana [Member]
Subsequent Event [Line Items]
Credit facility, borrowing capacity		12,000,000
Bank Term Loans [Member]
Subsequent Event [Line Items]
Credit facility, borrowing capacity		$ 100,000,000