Advanced Drainage Systems (WMS) 10-K/A 10 Jan 17 2016 FY Annual report (amended) Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2016	Aug. 31, 2016	Sep. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K/A
Amendment Flag	true
Amendment Description	Subsequent to the issuance of the Company’s consolidated financial statements for the fiscal year ended March 31, 2016, Advanced Drainage Systems, Inc. identified errors in its historical consolidated financial statements related primarily to the accounting for stock-based compensation, as well as the compensation expense associated with certain executive employment agreements. As a result, Advanced Drainage Systems, Inc. is filing this Amendment No. 1 on Form 10-K/A (the “Fiscal 2016 Form 10-K/A”) to amend and restate in their entirety the following items of its Annual Report on Form 10-K for the fiscal year ended March 31, 2016 as originally filed with the Securities and Exchange Commission on September 15, 2016 (the “Original Form 10-K”): (i) Item 1 of Part I, “Business,” (ii) Item 1A of Part I, “Risk Factors,” (iii) Item 6 of Part II, “Selected Financial and Operating Data”, (iv) Item 7 of Part II, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” (v) Item 8 of Part II, “Financial Statements and Supplementary Data,” (vi) Item 9A of Part II, “Controls and Procedures,” and (vii) Item 15 of Part IV, “Exhibits and Financial Statement Schedules”. The Company has also updated the signature page, the consent of our independent registered public accounting firm in Exhibit 23.1, the certifications of the Chief Executive Officer and Chief Financial Officer in Exhibits 31.1, 31.2, 32.1 and 32.2, respectively, and the consolidated financial statements formatted in Extensible Business Reporting Language (XBRL) in Exhibits 101, as well as certain information in the “Grants of Plan-Based Awards for Fiscal Year 2016” section of Item 11 of Part III, “Executive Compensation”. While no other sections were affected, for the convenience of the reader, all sections included in the Original Form 10-K are presented herein. This report on Form 10-K/A is presented as of the filing date of the Original Form 10-K and does not reflect events occurring after that date, or modify or update disclosures, other than as required to reflect the restatement and to provide updated information regarding debt covenant waivers. For further information about the restatement (the “Stock-Based Compensation Restatement”), see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Note 23. Restatement of Previously Issued Financial Statements” to our audited consolidated financial statements included in “Item 8. Financial Statements and Supplementary Data” of this Form 10-K/A. Additionally, see “Item 6. Selected Financial and Operating Data” for a summary of the effects of the restatement adjustments on fiscal years 2013 and 2012, and “Note 24. Quarterly Financial Information (Unaudited)” to the consolidated financial statements included in this Annual Report presents historical unaudited consolidated quarterly financial information for each of the quarters during the years ended March 31, 2016 and 2015. This Form 10-K/A is being filed concurrently with the Company’s Forms 10-Q/A for the periods ended June 30, 2015, September 30, 2015 and December 31, 2015.
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
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 Well-known Seasoned Issuer	No
Entity Current Reporting Status	No
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		54,887,305
Entity Public Float			$ 997

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Current assets:
Cash	[1]	$ 6,555	$ 3,623
Receivables (less allowance for doubtful accounts of $7,956 and $5,423, respectively)	[1]	186,883	154,294
Inventories	[1]	230,466	260,550
Deferred income taxes and other current assets	[1]	15,658	25,943
Total current assets	[1]	439,562	444,410
Property, plant and equipment, net	[1]	391,744	375,813
Other assets:
Goodwill	[1]	100,885	98,679
Intangible assets, net	[1]	59,869	58,055
Other assets	[1]	48,387	61,167
Total assets	[1]	1,040,447	1,038,124
Current liabilities:
Current maturities of debt obligations	[1]	35,870	9,580
Current maturities of capital lease obligations	[1]	19,231	15,731
Accounts payable	[1]	119,606	111,893
Current portion of liability-classified stock-based awards	[1]	10,118	17,611
Other accrued liabilities	[1]	65,099	54,349
Accrued income taxes	[1]	2,260	6,299
Total current liabilities	[1]	252,184	215,463
Long-term debt obligation	[1]	315,345	390,315
Long-term capital lease obligations	[1]	56,809	45,503
Deferred tax liabilities	[1]	63,952	62,832
Other liabilities	[1]	37,921	38,865
Total liabilities	[1]	726,211	752,978
Commitments and contingencies (see Note 14)	[1]
Mezzanine equity:
Redeemable convertible preferred stock: $0.01 par value; 47,070 shares authorized; 44,170 shares issued; 24,819 and 25,639 shares outstanding, respectively	[1]	310,240	320,490
Deferred compensation - unearned ESOP shares	[1]	(205,664)	(212,469)
Redeemable noncontrolling interest in subsidiaries	[1]	7,171
Total mezzanine equity	[1]	111,747	108,021
Stockholders' equity:
Common stock: $0.01 par value; 1,000,000 shares authorized; 153,560 shares issued; 54,437 and 53,522 shares outstanding, respectively	[1]	12,393	12,393
Paid-in capital	[1]	739,097	723,495
Common stock in treasury, at cost	[1]	(440,995)	(445,065)
Accumulated other comprehensive loss	[1]	(21,261)	(15,521)
Retained deficit	[1]	(101,778)	(114,590)
Total ADS stockholders' equity	[1]	187,456	160,712
Noncontrolling interest in subsidiaries	[1]	15,033	16,413
Total stockholders' equity	[1]	202,489	177,125
Total liabilities, mezzanine equity and stockholders' equity	[1]	$ 1,040,447	$ 1,038,124
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Allowance for doubtful accounts	[1]	$ 7,956	$ 5,423
Common stock, par value	[1]	$ 0.01	$ 0.01
Common stock, shares authorized	[1]	1,000,000,000	1,000,000,000
Common stock, shares issued	[1]	153,560,000	153,560,000
Common stock, shares outstanding	[1]	54,437,000	53,522,000
Redeemable Convertible Preferred Stock [Member]
Mezzanine equity, par value	[1]	$ 0.01	$ 0.01
Mezzanine equity, shares authorized	[1]	47,070,000	47,070,000
Mezzanine equity, shares issued	[1]	44,170,000	44,170,000
Mezzanine equity, shares outstanding	[1]	24,819,000	25,639,000
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended											12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Income Statement [Abstract]
Net sales		$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434				$ 1,290,678	[1]	$ 1,180,073	[1]	$ 1,067,780	[1]
Cost of goods sold	[1]												1,005,326		974,960		875,232
Gross profit		49,504	74,842	86,529	74,477	24,384	49,287	70,137	61,305				285,352	[1]	205,113	[1]	192,548	[1]
Operating expenses:
Selling	[1]												88,478		80,481		74,042
General and administrative	[1]												92,504		75,855		62,897
Loss (gain) on disposal of assets or businesses	[1]												812		362		(2,863)
Intangible amortization	[1]												9,224		9,754		10,145
Income from operations	[1]												94,334		38,661		48,327
Other expense:
Interest expense	[1]												18,460		19,368		18,807
Derivative losses (gains) and other expense (income), net	[1]												16,575		14,370		(1,177)
Income before income taxes	[1]												59,299		4,923		30,697
Income tax expense	[1]												23,498		6,284		19,637
Equity in net loss of unconsolidated affiliates	[1]												5,234		2,335		3,086
Net income (loss)		(11,085)	12,942	15,928	12,782	(24,909)	(3,269)	18,081	6,401				30,567	[1]	(3,696)	[1]	7,974	[1]
Less net income attributable to noncontrolling interest	[1]												5,515		4,131		3,593
Net income (loss) attributable to ADS		$ (12,119)	$ 13,131	$ 12,346	$ 11,694	$ (24,640)	$ (4,641)	$ 15,928	$ 5,526				25,052	[1]	(7,827)	[1]	4,381	[1]
Change in fair value of Redeemable convertible preferred stock	[1]														(11,054)		(3,979)
Accretion of Redeemable noncontrolling interest	[1]												(932)
Dividends to redeemable convertible preferred stockholders	[1]												(1,425)		(661)		(10,139)
Dividends paid to unvested restricted stockholders	[1]												(24)		(11)		(25)
Net income (loss) available to common stockholders and participating securities	[1]												22,671		(19,553)		(9,762)
Undistributed income allocated to participating securities	[1]												(1,270)
Net income (loss) available to common stockholders	[1]												$ 21,401		$ (19,553)		$ (9,762)
Weighted average common shares outstanding:
Basic	[1]												53,978		51,344		47,277
Diluted	[1]												55,176		51,344		47,277
Net income (loss) per share available to common stockholders:
Basic		$ (0.24)	$ 0.21	$ 0.20	$ 0.19	$ (0.47)	$ (0.09)	$ 0.40	$ (0.27)				$ 0.40	[1]	$ (0.38)	[1]	$ (0.21)	[1]
Diluted		(0.24)	0.21	0.19	0.19	(0.47)	(0.09)	0.40	(0.27)				0.39	[1]	(0.38)	[1]	(0.21)	[1]
Cash dividends declared per share		$ 0.050	$ 0.050	$ 0.050	$ 0.050	$ 0.040	$ 0.040	$ 0	$ 0	$ 0.029	$ 0.029	$ 0.029	$ 0.20	[1]	$ 0.08	[1]	$ 1.68	[1]
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	[1]	$ 30,567	$ (3,696)	$ 7,974
Other comprehensive loss:
Currency translation	[1]	(8,594)	(11,928)	(6,991)
Comprehensive income (loss)	[1]	21,973	(15,624)	983
Less other comprehensive loss attributable to noncontrolling interest, net of tax	[1]	(2,854)	(3,237)	(1,242)
Less net income attributable to noncontrolling interest	[1]	5,515	4,131	3,593
Total comprehensive income (loss) attributable to ADS	[1]	$ 19,312	$ (16,518)	$ (1,368)
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Condensed Consolidated Statemen

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Cash Flows from Operating Activities
Net income (loss)	[1]	$ 30,567	$ (3,696)	$ 7,974
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	[1]	71,009	65,472	63,674
Deferred income taxes	[1]	10,686	(18,762)	(7,644)
Loss (gain) on disposal of assets or businesses	[1]	812	362	(2,863)
ESOP, stock repurchase agreement and stock-based compensation	[1]	4,382	37,402	37,432
Amortization of deferred financing charges	[1]	1,412	1,410	1,591
Derivative fair value adjustments	[1]	2,163	7,746	(53)
Loss on purchase of non-controlling interest	[1]	490
Equity in net loss of unconsolidated affiliates	[1]	5,234	2,335	3,086
Other operating activities	[1]	7,243	(1,062)	5,611
Changes in working capital (see Note 22)	[1]	1,344	(16,828)	(36,398)
Net cash provided by operating activities	[1]	135,342	74,379	72,410
Cash Flows from Investing Activities
Capital expenditures	[1]	(44,942)	(32,080)	(40,933)
Proceeds from disposition of assets or businesses	[1]		538	9,302
Cash paid for acquisitions, net of cash acquired	[1]	(3,188)	(36,385)
Investment in unconsolidated affiliates	[1]		(7,566)	(6,375)
Proceeds from note receivable to related party	[1]	3,854
Issuance of note receivable to related party	[1]	(3,854)
Other investing activities	[1]	(888)	(600)	(706)
Net cash used in investing activities	[1]	(49,018)	(76,093)	(38,712)
Cash Flows from Financing Activities
Proceeds from Revolving Credit Facility	[1]	409,100	389,200	490,703
Payments on Revolving Credit Facility	[1]	(448,200)	(432,200)	(429,660)
Proceeds from Term Loan	[1]			100,000
Payments on Term Loan	[1]	(8,750)	(6,250)	(80,000)
Proceeds from Senior Notes	[1]			25,000
Proceeds from notes, mortgages, and other debt	[1]	6,378
Payments of notes, mortgages, and other debt	[1]	(7,208)	(4,903)	(1,942)
Payments on CSV life insurance policies	[1]		(872)
Payments on capital lease obligations	[1]	(19,780)	(9,278)	(12,240)
Payments for deferred initial public offering costs	[1]		(6,479)
Debt issuance costs	[1]			(2,311)
Proceeds from initial public offering of common stock, net of underwriter discounts and commissions	[1]		79,131
Cash dividends paid	[1]	(16,240)	(7,869)	(115,058)
Redemption of Redeemable convertible preferred stock	[1]			(4,428)
Purchase of treasury stock - common	[1]		(3)	(1,063)
Other financing activities	[1]	1,736	1,314	(110)
Net cash (used in) provided by financing activities	[1]	(82,964)	1,791	(31,109)
Effect of exchange rate changes on cash	[1]	(428)	(385)	(19)
Net change in cash	[1]	2,932	(308)	2,570
Cash at beginning of year	[1]	3,623	3,931	1,361
Cash at end of year	[1]	$ 6,555	$ 3,623	$ 3,931
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Deficit) - 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 Earnings (Deficit) [Member]	Total ADS Stockholders' Equity [Member]	Non-controlling Interest in Subsidiaries [Member]
Cumulative revision and restatement adjustments		$ (32,447)			$ (155)		$ (32,292)	$ (32,447)
Beginning Balance, Value (As Reported [Member]) at Mar. 31, 2013		(299,923)	$ 11,957	$ (448,571)	40,026	$ (1,081)	79,202	(318,467)	$ 18,544
Beginning Balance, Value at Mar. 31, 2013	[1]	(332,370)	11,957	(448,571)	39,871	(1,081)	46,910	(350,914)	18,544
Net income		7,974					4,381	4,381	3,593
Other comprehensive loss		(6,991)				(5,749)		(5,749)	(1,242)
Redeemable convertible preferred stock dividends		(10,021)					(10,021)	(10,021)
Common stock dividend		(77,592)					(77,592)	(77,592)
Dividend paid to noncontrolling interest holder		(2,311)							(2,311)
Compensation		(203)			(203)			(203)
Dividend		(118)					(118)	(118)
Exercise of common stock options		111		1,896	(1,785)			111
Redemption of common shares to exercise stock options				(1,187)	1,187
Restricted stock awards		607		486	121			607
Redemption of redeemable convertible preferred stock		0	0	0	0	0	0	0	0
Purchase of common stock		(1,063)		(1,063)				(1,063)
Reclassification of common stock to redeemable common stock		(385)			(385)			(385)
Adjustments to redeemable convertible preferred stock fair value measurement		(3,979)			(3,979)			(3,979)
Adjustments to redeemable common stock fair value measurement		(26,458)			(26,458)			(26,458)
Adjustments to redeemable common stock agreements		(240)					(240)	(240)
Ending Balance, Value at Mar. 31, 2014	[1]	(453,039)	$ 11,957	$ (448,439)	8,369	(6,830)	(36,680)	(471,623)	18,584
Beginning Balance, Shares (As Reported [Member]) at Mar. 31, 2013			109,979	101,191
Beginning Balance, Shares at Mar. 31, 2013	[1]		109,979	101,191
Exercise of common stock options, Shares				(428)
Redemption of common shares to exercise stock options, Shares				85
Restricted stock awards, Shares				(118)
Purchase of common stock, Shares				80
Reclassification of common stock to redeemable common stock, Shares			(28)
Adjustments to redeemable common stock agreements			(17)
Ending Balance, Shares at Mar. 31, 2014	[1]		109,934	100,810
Cumulative revision and restatement adjustments		(32,447)			(155)		(32,292)	(32,447)
Net income		(3,696)					(7,827)	(7,827)	4,131
Other comprehensive loss		(11,928)				(8,691)		(8,691)	(3,237)
Redeemable convertible preferred stock dividends		(534)					(534)	(534)
Common stock dividend		(4,270)					(4,270)	(4,270)
Dividend paid to noncontrolling interest holder		(3,065)							(3,065)
Compensation		3,003			3,003			3,003
Dividend		(127)					(127)	(127)
Exercise of common stock options		9,539		$ 1,048	8,491			9,539
Redemption of common shares to exercise stock options				(93)	93
Tax benefit resulting from exercise of certain stock-based compensation awards		(4)			(4)			(4)
Restricted stock awards		6,599		743	5,856			6,599
Initial Public Offering (IPO)		72,196	$ 53		72,143			72,196
Purchase of common stock		(3)		(3)				(3)
ESOP distributions in common stock		6,133		1,679	4,454			6,133
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
Adjustments to redeemable common stock agreements		18,256			19,510		(1,254)	18,256
Ending Balance, Value at Mar. 31, 2015	[1]	177,125	$ 12,393	$ (445,065)	723,495	(15,521)	(114,590)	160,712	16,413
Exercise of common stock options, Shares				(235)
Redemption of common shares to exercise stock options, Shares				7
Restricted stock awards, Shares				(167)
Initial Public Offering (IPO), Shares			5,289
ESOP distributions in common stock, Shares				(377)
Termination of redemption feature upon IPO, Shares			38,320
Adjustments to redeemable common stock agreements			17
Ending Balance, Shares at Mar. 31, 2015	[1]		153,560	100,038
Net income		30,132					25,052	25,052	5,080
Other comprehensive loss		(8,594)				(5,740)		(5,740)	(2,854)
Redeemable convertible preferred stock dividends		(1,293)					(1,293)	(1,293)
Common stock dividend		(10,815)					(10,815)	(10,815)
Dividend paid to noncontrolling interest holder		(3,606)							(3,606)
Compensation		3,577			3,577			3,577
Dividend		(132)					(132)	(132)
Exercise of common stock options		5,333		$ 954	4,379			5,333
Tax benefit resulting from exercise of certain stock-based compensation awards		194			194			194
Restricted stock awards		891		309	582			891
ESOP distributions in common stock		10,250		2,807	7,443			10,250
Acquisition of Redeemable noncontrolling interest		0	$ 0	0	0	0	0	0	0
Accretion of Redeemable noncontrolling interest		(573)			(573)			(573)
Ending Balance, Value at Mar. 31, 2016	[1]	$ 202,489	$ 12,393	$ (440,995)	$ 739,097	$ (21,261)	$ (101,778)	$ 187,456	$ 15,033
Exercise of common stock options, Shares				(215)
Restricted stock awards, Shares				(69)
ESOP distributions in common stock, Shares				(631)
Ending Balance, Shares at Mar. 31, 2016	[1]		153,560	99,123
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Consolidated Statements of Sto8

Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical) - $ / shares

3 Months Ended

12 Months Ended

Mar. 31, 2016

Dec. 31, 2015

Sep. 30, 2015

Jun. 30, 2015

Mar. 31, 2015

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2016

Mar. 31, 2015

Mar. 31, 2014

Statement of Stockholders' Equity [Abstract]

Common stock dividend per share

$ 0.050

$ 0.050

$ 0.050

$ 0.050

$ 0.040

$ 0.040

$ 0

$ 0

$ 0.029

$ 0.029

$ 0.029

$ 0.20

[1]

$ 0.08

[1]

$ 1.68

[1]

[1]

See Note 23. Restatement of Previously Issued Financial Statements

Consolidated Statements of Mezz

Consolidated Statements of Mezzanine Equity - USD ($) shares in Thousands, $ in Thousands		Total	Redeemable Non-controlling Interest [Member]	Redeemable Common Stock [Member]	Redeemable Convertible Preferred Stock [Member]	Deferred Compensation - Unearned ESOP Shares [Member]	Total Mezzanine Equity [Member]
Beginning Balance, Value (As Reported [Member]) at Mar. 31, 2013				$ 522,276	$ 282,547	$ (196,477)	$ 608,346
Beginning Balance, Value at Mar. 31, 2013	[1]			522,276	282,547	(196,477)	608,346
Other comprehensive loss		$ (6,991)
Dividend paid to noncontrolling interest holder		(2,311)
Compensation		(203)				8,093	8,093
Dividend		118				118	118
Redemption of redeemable convertible preferred stock		0			(4,428)		(4,428)
Purchase of common stock		(1,063)	$ 0	0	0	0	0
Reclassification of common stock to redeemable common stock		(385)		385			385
Adjustments to redeemable convertible preferred stock fair value measurement					13,601	(9,622)	3,979
Adjustments to redeemable common stock fair value measurement				26,458			26,458
Adjustments to redeemable common stock agreements				240			240
Ending Balance, Value at Mar. 31, 2014	[1]			$ 549,359	$ 291,720	$ (197,888)	643,191
Beginning Balance, Shares (As Reported [Member]) at Mar. 31, 2013				38,292	26,547	18,461
Beginning Balance, Shares at Mar. 31, 2013	[1]			38,292	26,547	18,461
Allocation of ESOP shares to participants for Compensation, Shares						(725)
Dividend, Shares						(9)
Redemption of redeemable convertible preferred stock, Shares					(418)
Purchase of common stock, Shares				0	0	0
Reclassification of common stock to redeemable common stock, Shares				28
Adjustments to redeemable common stock agreements, Shares				17
Ending Balance, Shares at Mar. 31, 2014	[1]			38,337	26,129	17,727
Other comprehensive loss		(11,928)
Dividend paid to noncontrolling interest holder		(3,065)
Compensation		3,003				$ 9,141	9,141
Dividend		127				127	127
ESOP distributions in common stock					$ (6,133)		(6,133)
Purchase of common stock		(3)
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)
Adjustments to redeemable common stock agreements				$ (240)			(240)
Ending Balance, Value (As Reported [Member]) at Mar. 31, 2015		108,021
Ending Balance, Value at Mar. 31, 2015	[1]	108,021			$ 320,490	$ (212,469)	108,021
Allocation of ESOP shares to participants for Compensation, Shares						(731)
Dividend, Shares						(6)
Purchase of common stock, Shares				0	0	0
ESOP distributions in common stock, Shares					(490)
Termination of redemption feature upon IPO, Shares				(38,320)
Adjustments to redeemable common stock agreements, Shares				17
Ending Balance, Shares at Mar. 31, 2015	[1]				25,639	16,990
Net income			435				435
Other comprehensive loss		(8,594)	0	$ 0	$ 0	$ 0	0
Dividend paid to noncontrolling interest holder		(3,606)	(526)				(526)
Compensation		3,577				6,673	6,673
Dividend		132				132	132
ESOP distributions in common stock					(10,250)		(10,250)
Acquisition of Redeemable noncontrolling interest			6,330				6,330
Accretion of Redeemable noncontrolling interest			932				932
Ending Balance, Value (As Reported [Member]) at Mar. 31, 2016		111,747
Ending Balance, Value at Mar. 31, 2016	[1]	$ 111,747	$ 7,171		$ 310,240	$ (205,664)	$ 111,747
Allocation of ESOP shares to participants for Compensation, Shares						(534)
Dividend, Shares						(8)
ESOP distributions in common stock, Shares					(820)
Acquisition of Redeemable noncontrolling interest, Shares				0	0	0
Ending Balance, Shares at Mar. 31, 2016	[1]				24,819	16,448
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Background and Summary of Signi

Background and Summary of Significant Accounting Policies	12 Months Ended
	Mar. 31, 2016
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. and subsidiaries (collectively 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. Our fiscal year begins on April 1 and ends on March 31. Unless otherwise noted, references to “year” pertain to our fiscal year. For example, 2016 refers to fiscal 2016, which is the period from April 1, 2015 to March 31, 2016. The Company is managed based primarily on the geographies in which it operates and reports results of operations in two reportable segments. The reportable segments are Domestic and International. 2014 Initial Public Offering (“IPO”) On July 11, 2014, in anticipation of the IPO, we executed a 4.707-for-one 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 of $6,935, we used the net proceeds of $72,196 to reduce the outstanding indebtedness under the revolving portion of our credit facility. The common stock is listed on the New York Stock Exchange under the symbol “WMS.” On August 22, 2014, an additional 600 shares of common stock were sold by certain selling stockholders of the Company as a result of the partial exercise by the underwriters of the over-allotment option granted by the selling stockholders to the underwriters in connection with the IPO. The shares were sold at the public offering price of $16.00 per share. The Company did not receive any proceeds from the sale of such additional shares. 2014 Secondary Public Offering (“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 per share. 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. Principles of Consolidation Our consolidated financial statements include the Company, our wholly owned subsidiaries, our majority owned subsidiaries, 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 Consolidated Balance Sheets and the related equity in earnings from these investments are included in Equity in net loss of unconsolidated affiliates in our Consolidated Statements of Operations. All intercompany balances and transactions have been eliminated in consolidation. Estimates The preparation of our consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingencies and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Significant estimates include, but are not limited to, our allowance for doubtful accounts, valuation of inventory, useful lives of our property, plant and equipment and amortizing intangible assets, determination of the proper accounting for leases, valuation of equity method investments, goodwill, intangible assets and other long-lived assets for impairment, accounting for stock-based compensation and our ESOP, valuation of our Redeemable common stock and Redeemable convertible preferred stock, determination of allowances for sales returns, rebates and discounts, determination of the valuation allowance, if any, on deferred tax assets, and reserves for uncertain tax positions. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Management believes the accounting estimates are appropriate and reasonably determined; however, due to the inherent uncertainties in making these estimates, actual results could differ from those estimates. Receivables and Allowance for Doubtful Accounts Receivables include trade receivables, refundable income taxes and other miscellaneous receivables, net of an allowance for doubtful accounts. Receivables at March 31, 2016 and 2015 are as follows: (Amounts in thousands) 2016 2015 Trade receivables $ 158,664 $ 141,528 Refundable income taxes 19,783 1,895 Other miscellaneous receivables 8,436 10,871 Total Receivables $ 186,883 $ 154,294 Credit is extended to customers based on an evaluation of their financial condition and collateral is generally not required. The evaluation of the customer’s financial condition is performed to reduce the risk of loss. Accounts receivable are evaluated for collectability based on numerous factors, including the length of time individual receivables are past due, past transaction history with customers, their credit worthiness and the economic environment. This estimate is periodically adjusted when management becomes aware of a specific customer’s inability to meet its financial obligations (e.g., bankruptcy filing) or as a result of changes in historical collection patterns. Inventories Inventories are stated at the lower of cost or market value. The Company’s inventories are maintained on the first-in, first-out in-bound Market value of inventory is established based on the lower of cost or estimated net realizable value, with consideration given to deterioration, obsolescence, and other factors. The Company periodically evaluates the carrying value of inventories and adjustments are made whenever necessary to reduce the carrying value to net realizable value. Property, Plant and Equipment and Depreciation Method Property, plant and equipment are recorded at cost less accumulated depreciation, with the exception of assets acquired through acquisitions, which are initially recorded at fair value. Equipment acquired under capital lease is recorded at the lower of fair market value or the present value of the future minimum lease payments. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings 40 — 45 Machinery and equipment 3 — 18 Leasehold improvements Shorter of useful Costs of additions and major improvements are capitalized, whereas maintenance and repairs that do not improve or extend the life of the asset are charged to expense as incurred. When assets are retired or disposed, the cost and related accumulated depreciation are removed from the asset accounts and any resulting gain or loss is reflected in Loss (gain) on disposal of assets or businesses in our Consolidated Statements of Operations. Construction in progress is also recorded at cost and includes capitalized interest, capitalized payroll costs and related costs such as taxes and other fringe benefits. Interest capitalized was $411, $518, and $611 during the fiscal years ended March 31, 2016, 2015, and 2014, respectively. Goodwill The Company records acquisitions resulting in the consolidation of an enterprise using the acquisition method of accounting. Under this method, we record the assets acquired, including intangible assets that can be identified, and liabilities assumed based on their estimated fair values at the date of acquisition. The purchase price in excess of the fair value of the identifiable assets acquired and liabilities assumed is recorded as goodwill. Goodwill is reviewed annually for impairment as of March 31 or whenever events or changes in circumstances indicate the carrying value may be greater than fair value. The goodwill impairment analysis is comprised of two steps. The first step requires the comparison of the fair value of the applicable reporting unit to its respective carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that unit, goodwill is not considered impaired and the Company is not required to perform further testing. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the Company must perform the second step of the impairment test in order to determine the implied fair value of the reporting unit’s goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then we would record an impairment loss equal to the difference. With respect to this testing, a reporting unit is a component of the Company for which discrete financial information is available and regularly reviewed by management. Implied fair value of goodwill is determined by considering both the income and market approach. Determining the fair value of a reporting unit is judgmental in nature and involves the use of significant estimates and assumptions. These estimates and assumptions include revenue growth rates and operating margins used to calculate projected future cash flows, risk-adjusted discount rates, future economic and market conditions, and determination of appropriate market comparables. The fair value estimates are based on assumptions management believes to be reasonable, but are inherently uncertain. The Company did not incur any impairment charges for Goodwill in the fiscal years ended March 31, 2016, 2015, or 2014. Intangible Assets Intangible Assets — Definite-Lived Definite-lived intangible assets are amortized using the straight-line method over their estimated useful lives, and are tested for recoverability whenever events or changes in circumstances indicate that carrying amounts of the asset group may not be recoverable. Asset groups are established primarily by determining the lowest level of cash flows available. If the estimated undiscounted future cash flows are less than the carrying amounts of such assets, an impairment loss is recognized to the extent the fair value of the asset less any costs of disposition is less than the carrying amount of the asset. Determining the fair value of these assets is judgmental in nature and involves the use of significant estimates and assumptions. Intangible Assets — Indefinite-Lived 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. Determining the fair value of these assets is judgmental in nature and involves the use of significant estimates and assumptions. The Company bases its fair value estimates on assumptions it believes to be reasonable, but that are inherently uncertain. To estimate the fair value of these indefinite-lived intangible assets, the Company uses an income approach, which utilizes a market derived rate of return to discount anticipated performance. An impairment loss is recognized when the estimated fair value of the intangible asset is less than the carrying value. The Company did not incur any impairment charges for Intangible assets in the fiscal years ended March 31, 2016, 2015 or 2014. Other Assets Other assets include investments in unconsolidated affiliates accounted for under the equity method, cash surrender value of officer life insurance on key senior management executives, capitalized software development costs, deposits, deferred financing costs, Central parts, and other miscellaneous assets. The Company capitalizes development costs for internal use software. Capitalization of software development costs begins in the application development stage and ends when the asset is placed into service. The Company amortizes such costs using the straight-line method over estimated useful lives of 2 to 10 years, which is included in General and administrative expense, Selling expense or Cost of goods sold within our Consolidated Statements of Operations depending on the nature of the asset and its intended use. Amortization expense related to deferred financing costs is included in Interest expense within our Consolidated Statements of Operations. Central parts represent spare production equipment items which are used to replace worn or broken production equipment parts and help reduce the risk of prolonged equipment outages. The cost of Central parts is amortized on a straight line basis over estimated useful lives of 8 to 30 years. The Company evaluates its investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying amount might not be recoverable, and recognizes an impairment loss when a decline in value below carrying value is determined to be other-than-temporary. Under these circumstances, we would adjust the investment down to its estimated fair value, which then becomes its new carrying value. For the fiscal year ended March 31, 2016, the Company recorded an impairment charge of $4,000 related to its investment in the South American Joint Venture. See Note 10. Investment in Unconsolidated Affiliates. Other assets as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Investments in unconsolidated affiliates $ 13,188 $ 25,038 Cash surrender value of officer life insurance 10,739 9,953 Capitalized software development costs, net 7,264 7,276 Deposits 4,553 4,947 Deferred financing costs 3,131 4,543 Central parts 1,040 2,108 Other 8,472 7,302 Total other assets $ 48,387 $ 61,167 The following table sets forth amortization expense related to Other assets in each of the fiscal years ending March 31: (Amounts in thousands) 2016 2015 2014 Capitalized software development costs $ 3,872 $ 3,550 $ 3,270 Deferred financing costs 1,412 1,410 1,591 Central parts 362 55 43 Other 1,898 1,977 1,986 Leases Leases are reviewed for capital or operating classification at their inception. The Company uses the lower of the rate implicit in the lease or its incremental borrowing rate in the assessment of lease classification and assumes the initial lease term includes cancellable and renewal periods that are reasonably assured. For leases classified as capital leases at lease inception, we record a capital lease asset and lease financing obligation equal to the lesser of the present value of the minimum lease payments or the fair market value of the leased asset. The capital lease asset is recorded in Property, plant and equipment, net and amortized to its expected residual value at the end of the lease term using the straight-line method, and the lease financing obligation is amortized using the interest method over the lease term with the rental payments being allocated to principal and interest. For leases classified as operating leases, we record rent expense over the lease term using the straight-line method. Foreign Currency Translation Assets and liabilities of foreign subsidiaries with a functional currency other than the U.S. dollar are translated into U.S. dollars at the current rate of exchange on the last day of the reporting period. Revenues and expenses are translated at a monthly average exchange rate and equity transactions are translated using either the actual exchange rate on the day of the transaction or a monthly average historical exchange rate. For the fiscal years ended March 31, 2016, 2015 and 2014, the Company’s Accumulated other comprehensive loss (“AOCL”) consisted entirely of foreign currency translation gains and losses. Net Sales The Company sells pipe products and related water management products. ADS ships products to customers predominantly by internal fleet and to a lesser extent by third-party carriers. The Company does not provide any additional revenue generating services after product delivery. Sales, net of sales tax and allowances for returns, rebates and discounts are recognized from product sales when persuasive evidence of an arrangement exists, delivery has occurred, the price to the buyer is fixed or determinable and collectability is reasonably assured. ADS does not ship an order until a customer purchase order or sales order has been received that includes the pricing and quantity of the products in the order, which establishes both persuasive evidence of an arrangement and that the price is fixed or determinable. Title to the products and risk of loss generally passes to the customer upon delivery. ADS performs credit check procedures on all new customers, establishes credit limits accordingly, and monitors the creditworthiness of existing customers, which is the basis for concluding that collectability is reasonably assured. Shipping Costs Shipping costs are incurred to physically move our raw materials, tooling and products between manufacturing and distribution facilities and from our production or distribution facilities to our customers. Shipping costs for the fiscal years ended March 31, 2016, 2015 and 2014 were $120,487, $120,993, and $111,862, respectively, and are included in Cost of goods sold. In certain instances, we bill shipping costs to our customers. Shipping costs billed to customers were $7,026, $9,282, and $8,864 during 2016, 2015 and 2014, respectively, and are included in Net sales. Stock-Based Compensation See Note 18. Stock-Based Compensation for information about our stock-based compensation award programs and related accounting policies. Advertising We expense advertising costs as incurred. Advertising costs are recorded in Selling expenses in the Consolidated Statements of Operations. The total advertising costs were $3,150, $2,477, and $2,335 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively. Self-Insurance The Company is self-insured for short term disability and medical coverage it provides for substantially all eligible employees. The Company is self-insured for medical claims up to the individual and aggregate stop-loss coverage limits. Management accrues for claims incurred but not reported based on our estimate of future claims related to events that occurred prior to our fiscal year end if we have not met the aggregate stop-loss coverage limit. Amounts contributed totaled $37,509, $32,002, and $29,484 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively, of which employees contributed $4,511, $4,067, and $4,032, respectively. ADS is also self-insured for various other general insurance programs to the extent of the applicable deductible limits on the Company’s insurance coverage. These programs include primarily automobile, general liability and employment practices coverage with deductibles ranging from $250 to $500 per occurrence or claim incurred. Amounts expensed during the period, including an estimate for claims incurred but not reported at year end, were $2,133, $569, and $447, for the years ended March 31, 2016, 2015 and 2014, respectively. ADS is also self-insured for workers’ compensation insurance with stop-loss coverage for claims that exceed $250 per incident up to the respective state statutory limits. Amounts expensed, including an estimate for claims incurred but not reported, were $3,873, $1,369, and $1,395 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively. Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized and represent the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. They are measured using the enacted tax rates expected to apply to taxable income in the years in which the related temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The deferred income tax provision represents the change during the reporting period in the deferred tax assets and deferred tax liabilities. Penalties and interest recorded on income taxes payable are recorded as part of Income tax expense. The Company determines whether an uncertain tax position of the Company is more likely than not to be sustained upon examination, including resolution of any related appeals or litigation process, based upon the technical merits of the position. For tax positions meeting the more likely than not threshold, the tax amount recognized in the financial statements is the largest amount of tax benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant taxing authority. Fair Values The fair value framework requires the categorization of assets and liabilities into three levels based upon assumptions (inputs) used to price the assets or liabilities. Level 1 provides the most reliable measure of fair value, whereas Level 3 generally requires significant management judgment. The three levels are defined as follows: Level 1 — Unadjusted quoted prices in active markets for identical assets and liabilities. Level 2 — Observable inputs other than those included in Level 1. For example, quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets. Level 3 — Unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability. Our policy for determining when transfers between levels have occurred is to use the actual date of the event or change in circumstances that caused the transfer. The carrying amounts of current financial assets and liabilities approximate fair value because of the immediate or short-term maturity of these items, or in the case of derivative instruments, because they are recorded at fair value. The carrying and fair value of the Company’s Senior Notes (discussed in Note 12. Debt) were $100,000 and $101,175, respectively, as of March 31, 2016 and $100,000 and $103,590, respectively, at March 31, 2015. The fair value of the Senior Notes was determined based on a comparison of the interest rate and terms of such borrowings to the rates and terms of similar debt available for the period. Management believes the carrying amount on the remaining long-term debt, including the Bank Term Loans, is not materially different from its fair value as the interest rates and terms of the borrowings are similar to currently available borrowings. The categorization of the framework used to evaluate this debt is considered Level 2. See also Note 8. Fair Value Measurement to these financial statements. Concentrations of Risk We have a large, active customer base of approximately twenty thousand customers with two customers each representing more than 10% of annual net sales. Such customers accounted for 21.1%, 20.3%, and 20.5% of fiscal year 2016, 2015 and 2014 net sales, respectively. Our customer base is diversified across the range of end markets that we serve. Financial instruments that potentially subject the Company to a concentration of credit risk consist principally of Receivables. The Company provides its products to customers based on an evaluation of the customers’ financial condition, generally without requiring collateral. Exposure to losses on Receivables is principally dependent on each customer’s financial condition. The Company performs ongoing credit evaluations of its customers. The Company monitors the exposure for credit losses and maintains allowances for anticipated losses. Concentrations of credit risk with respect to Receivables are limited due to the large number of customers comprising the Company’s customer base and their dispersion across many different geographies. One customer accounted for approximately 14% of our Receivables at March 31, 2016. Derivatives We recognize derivative instruments as either assets or liabilities and measure those instruments at fair value. We use interest rate swaps, commodity options in the form of collars and swaps, and foreign currency forward contracts to manage our various exposures to interest rate, commodity price, and exchange rate fluctuations. These instruments do not qualify for hedge accounting treatment and therefore, gains and losses from contract settlements and changes in fair value of the derivative instruments are recognized in Derivative losses (gains) and other expense (income), net in the Consolidated Statements of Operations. Our policy is to present all derivative balances on a gross basis. The Company also has forward purchase agreements in place with certain resin suppliers for virgin polyethylene resin. The agreements specify a fixed amount of virgin resin material to be purchased at a fixed price for a given period of time in quantities the Company will use in the normal course of business, and therefore, are not subject to the guidance provided in ASC 810-15. Recent Accounting Pronouncements Revenue Recognition Consolidation Debt Issuance Costs line-of-credit line-of-credit Measurement of Inventory Deferred Tax Assets and Liabilities non-current, non-current Leases right-of-use Stock-Based Compensation paid-in net-share Measurement of Credit Losses Cash Flow Classification With the exception of pronouncements described above, there have been no new accounting pronouncements that have significance, or potential significance, to our consolidated financial statements.

Disposal of Assets or Businesse

Disposal of Assets or Businesses	12 Months Ended
	Mar. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Disposal of Assets or Businesses	2. DISPOSAL OF ASSETS OR BUSINESSES Periodically, we will dispose of equipment, including equipment that we have accounted for as capital leases. The net loss on the disposition of the equipment was $812, $1,112, and $2,475 during the fiscal years 2016, 2015 and 2014, respectively. In the fourth quarter of fiscal year 2015, we completed the sale of product-related intellectual property rights that were not significant. The sales price was $750, consisting of a cash payment of $150 plus other consideration in the form of a note receivable for $600. The sale did not involve any tangible assets, and the related intellectual property rights had no net book value, resulting in a net gain recognized of $750. In the fourth quarter of fiscal year 2014, we completed the sale of two businesses that individually and in the aggregate were not significant. The aggregate sales price of these two transactions was $3,030, plus other consideration in the form of a note receivable for $1,241. The net book value of these businesses was $3,781, resulting in a net gain recognized of $490. In the first quarter of fiscal year 2014, we entered into an agreement (the “NDS Agreement”) to sell substantially all of the assets used in connection with our Draintech product line to National Diversified Sales, Inc. (“NDS”) in exchange for cash. The NDS Agreement defined the purchase price to consist of a cash payment of $5,877. The net book value for the related assets, consisting of inventory and property and equipment, was $1,029, resulting in a net gain recognized of $4,848. The sale transaction closed on June 28, 2013. The product line sold consisted of minor niche fittings which were manufactured by a third party producer and resold by the Company primarily in the retail market.

Acquisitions

Acquisitions	12 Months Ended
	Mar. 31, 2016
Business Combinations [Abstract]
Acquisitions	3. ACQUISITIONS Fiscal 2016 Step Acquisition of BaySaver 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 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 purchase price has been allocated to the estimated fair values of acquired tangible and intangible assets, assumed liabilities and goodwill. The 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 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 estimated redemption value using the effective interest method until April 1, 2017. The excess of the 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. The 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 The net sales and income before income taxes of BaySaver since the acquisition date included in our Consolidated Statements of Operations were $10,190, and $1,242, 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 unaudited 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. Proforma (Amounts in thousands) 2016 2015 Net sales $ 1,294,277 $ 1,190,749 Net income (loss) attributable to ADS 25,090 (7,799 ) 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 $324, additional interest expense, net of related income taxes and amounts related to the noncontrolling interest, of $10 and $34, and the impact of our prior equity method accounting of $109 and $342, net of related income taxes, for the twelve months ended March 31, 2016 and 2015, respectively. Fiscal 2015 Acquisition of Ideal Pipe On January 30, 2015, Hancor of Canada, Inc., a wholly-owned subsidiary of the Company, acquired all issued and outstanding shares of Ideal Drain Tile Limited and Wave Plastics Inc., the sole partners of Ideal Pipe (together “Ideal Pipe”). Ideal Pipe designs, manufactures and markets high performance thermoplastic corrugated pipe and related water management products used across a broad range of Canadian end markets and applications, including nonresidential, residential, agriculture, and infrastructure applications. The acquisition further strengthens our position in Canada by increasing our size and scale in the market, as well as enhancing our manufacturing, marketing and distribution capabilities. The purchase price of Ideal Pipe was $43,828, financed through cash acquired and our existing line of credit facility. The results of operations of Ideal Pipe are included in our Consolidated Statements of Operations after January 30, 2015. The Net sales and Income before income taxes of Ideal Pipe since the acquisition date included in our Consolidated Statements of Operations for the fiscal year ended March 31, 2015 were immaterial. The excess of the purchase price over the fair value of the net assets acquired of $10,660 was allocated to goodwill, assigned to the International segment, and consists primarily of the acquired workforce and synergies the two companies anticipate realizing as a combined company. None of the goodwill is deductible for tax purposes. The purchase price allocation is as follows: (Amounts in thousands) Cash $ 7,443 Other current assets 9,036 Property, plant and equipment 27,258 Goodwill and intangible assets 18,890 Current liabilities (12,721 ) Non-current (6,078 ) Total purchase price $ 43,828 Transaction costs were immaterial. However, the Company did incur a loss on a currency hedge related to the purchase of Ideal Pipe in the amount of $5,636 which was recorded in Derivatives losses (gains) and other expense (income), net in the Consolidated Statements of Operations. The Company used this currency hedge to fix the purchase price which was denominated in Canadian dollars from the agreement date until the transaction ultimately closed on January 30, 2015. The acquired identifiable intangible assets represent customer relationships of $4,881 (seven-year useful life), trade name of $3,073 (10-year non-compete Proforma (Amounts in thousands) 2015 2014 Net sales $ 1,217,431 $ 1,102,477 Net (loss) income attributable to ADS (6,118 ) 4,783 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, of $749 and $951, (reduced) additional depreciation expense, net of related income taxes, of ($7) and $354 and additional interest expense, net of related income taxes, of $513 and $521 for the fiscal years ended March 31, 2015 and 2014, respectively.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	4. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment, net as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Land, buildings and improvements $ 178,189 $ 177,073 Machinery and equipment 730,791 690,079 Construction in progress 14,902 5,991 Total cost 923,882 873,143 Less accumulated depreciation (532,138 ) (497,330 ) Property, plant and equipment, net $ 391,744 $ 375,813 The following table sets forth depreciation expense related to Property, plant and equipment in each of the fiscal years ending March 31: (Amounts in thousands) 2016 2015 2014 Depreciation expense (inclusive of leased assets depreciation) $ 55,650 $ 50,136 $ 48,230

Leases

Leases	12 Months Ended
	Mar. 31, 2016
Leases [Abstract]
Leases	5. LEASES Capital Leases The Company leases certain buildings and transportation equipment including its fleet of trucks and trailers, under capital lease agreements. Leased assets included in Property, plant and equipment consisted of the following: (Amounts in thousands) 2016 2015 Buildings and improvements $ 6,131 $ 7,163 Machinery and equipment 186,258 168,437 Total cost 192,389 175,600 Less accumulated depreciation (102,572 ) (102,263 ) Leased assets in Property, plant and equipment, net $ 89,817 $ 73,337 The following sets forth the interest and depreciation expense related to capital leases recorded in each fiscal year ended March 31: (Amounts in thousands) 2016 2015 2014 Lease interest expense $ 3,367 $ 2,249 $ 2,666 Depreciation of leased assets 15,782 13,943 12,644 The following is a schedule by year of future minimum lease payments under capital leases and the present value of the net minimum lease payments as of March 31, 2016: (Amounts in thousands) 2017 $ 22,077 2018 19,065 2019 14,961 2020 11,603 2021 8,975 Thereafter 7,317 Total minimum lease payments (a) $ 83,998 Less: amount representing interest (b) 7,958 Present value of net minimum lease payments $ 76,040 Lease obligation — Current 19,231 Lease obligation — Long-term 56,809 Total lease obligation $ 76,040 (a) Excludes contingent rentals which may be paid. Contingent rentals amounted to $137 and $844 for the years ended March 31, 2016 and 2015, respectively. (b) Amount necessary to reduce minimum lease payments to present value calculated at the lower of the rate implicit in the lease or the Company’s incremental borrowing rate at lease inception. Certain leases contain residual value guarantees that create a contingent obligation on the part of the Company to compensate the lessor if the leased asset cannot be sold for an amount in excess of a specified minimum value at the conclusion of the lease term. The calculation is based on the original cost of the transportation equipment, less lease payments made, compared to a percentage of the transportation equipment’s fair market value at the time of sale. All leased units covered by this guarantee have been classified as capital leases and a corresponding capital lease obligation was recorded. Therefore, no further contingent obligation is needed. Operating leases We lease certain real estate and office equipment under various cancelable and non-cancelable Future minimum rental commitments under operating leases as of March 31, 2016, are summarized below (amounts in thousands): 2017 2018 2019 2020 2021 Thereafter Future operating lease payments $ 2,224 $ 1,304 $ 898 $ 480 $ 258 $ 2,172 Total rent expense was $6,316, $3,953, and $3,836 in the fiscal years ended March 31, 2016, 2015, and 2014, respectively.

Inventories

Inventories	12 Months Ended
	Mar. 31, 2016
Inventory Disclosure [Abstract]
Inventories	6. INVENTORIES Inventories as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Raw materials $ 46,604 $ 50,198 Finished goods 183,862 210,352 Total Inventories $ 230,466 $ 260,550 We had no work-in-process General and administrative costs related to the production process are included in the cost of finished goods inventory. During fiscal years ended March 31, 2016 and 2015, we incurred production-related general and administrative costs of $18,041 and $17,257, respectively, of which $5,332 and $4,400 remained in inventory at March 31, 2016 and 2015, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	7. GOODWILL AND INTANGIBLE ASSETS Goodwill The carrying amount of goodwill by reportable segment is as follows: (Amounts in thousands) Domestic International Total Balance at April 1, 2014 $ 87,507 $ 510 $ 88,017 Acquisition — 10,660 10,660 Currency translation — 2 2 Balance at March 31, 2015 $ 87,507 $ 11,172 $ 98,679 Acquisition 2,495 — 2,495 Currency translation — (289 ) (289 ) Balance at March 31, 2016 $ 90,002 $ 10,883 $ 100,885 Intangible Assets Intangible assets as of March 31, 2016 and 2015 consisted of the following: 2016 2015 (Amounts in thousands) Gross Accumulated Net Gross Accumulated Net Definite-lived intangible assets Developed technology $ 44,579 $ (29,371 ) $ 15,208 $ 40,579 $ (26,405 ) $ 14,174 Customer relationships 40,732 (22,646 ) 18,086 43,167 (26,113 ) 17,054 Patents 7,048 (4,167 ) 2,881 6,547 (3,550 ) 2,997 Non-compete 1,242 (842 ) 400 1,365 (691 ) 674 Trademarks and tradenames 15,563 (4,195 ) 11,368 14,248 (3,051 ) 11,197 Total definite-lived intangible assets 109,164 (61,221 ) 47,943 105,906 (59,810 ) 46,096 Indefinite-lived intangible assets Trademarks 11,926 — 11,926 11,959 — 11,959 Total Intangible assets $ 121,090 $ (61,221 ) $ 59,869 $ 117,865 $ (59,810 ) $ 58,055 The following table presents the weighted average amortization period for definite-lived intangible assets at March 31, 2016: Weighted Average Developed technology 11.0 Customer relationships 8.5 Patents 8.3 Non-compete 5.1 Trademarks and tradenames 13.5 The following table presents the future intangible asset amortization expense based on existing intangible assets at March 31, 2016: Fiscal Year (Amounts in thousands) 2017 2018 2019 2020 2021 Thereafter Total Amortization expense $ 8,359 $ 7,826 $ 7,669 $ 5,984 $ 5,843 $ 12,262 $ 47,943

Fair Value Measurement

Fair Value Measurement	12 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurement	8. FAIR VALUE MEASUREMENT 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 fiscal years 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, liabilities and mezzanine equity carried at fair value as of the fiscal years ended March 31 were as follows: March 31, 2016 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets — diesel fuel contracts $ 11 $ — $ 11 $ — Total assets at fair value on a recurring basis $ 11 $ — $ 11 $ — Liabilities: Derivative liability — interest rate swaps $ 252 $ — $ 252 $ — Derivative liability — diesel fuel contracts 2,615 — 2,615 — Derivative liability — propylene swaps 8,027 — 8,027 — Contingent consideration for acquisitions 2,858 — — 2,858 Total liabilities at fair value on a recurring basis $ 13,752 $ — $ 10,894 $ 2,858 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 Amounts recorded in the Consolidated Statements of Operations for Level 3 items amounted to $123 and $283 during 2016 and 2015, respectively. Quantitative Information about Level 3 Fair Value Measurements (Amounts in thousands) Liabilities & Mezzanine Equity Fair Value Valuation Unobservable Input Quantifiable Contingent consideration for acquisitions $2,858 Discounted cash flow Weighted Average Cost of Capital (“WACC”) (a) 9.75%-10 % Liabilities & Mezzanine Equity Fair Value Valuation Unobservable Input Quantifiable Contingent consideration for acquisitions $2,444 Discounted cash flow Weighted Average Cost of Capital (“WACC”) (a) 10 % (a) Represents discount rates or rates of return estimates and assumptions that we believe would be used by market participants when valuing these liabilities. Changes in the fair value of recurring fair value measurements using significant unobservable inputs (Level 3) for the fiscal years ended March 31, 2016 and 2015 were as follows: Contingent Executive stock Redeemable Redeemable Deferred Total Balance at March 31, 2014 $ 2,898 $ 16,934 $ 549,359 $ 291,720 $ (197,888 ) $ 663,023 Allocation of ESOP shares to participants — — — — 4,391 4,391 Change in fair value 174 1,302 65,921 34,903 (23,849 ) 78,451 Payments of contingent consideration liability (628 ) — — — — (628 ) Transfer out of Level 3 — (18,236 ) (615,280 ) (326,623 ) 217,346 (742,793 ) Balance at March 31, 2015 $ 2,444 $ — $ — $ — $ — $ 2,444 Acquisition 750 — — — — 750 Change in fair value 371 — — — — 371 Payments of contingent consideration liability (707 ) — — — — (707 ) Balance at March 31, 2016 $ 2,858 $ — $ — $ — $ — $ 2,858 During fiscal year 2015 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. The liability associated with the executive stock repurchase agreements also transferred out of Level 3, as the underlying 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 Valuation of our Contingent Consideration for Acquisitions The fair values of the contingent consideration payables for acquisitions were calculated based on a discounted cash flow model, whereby the probability-weighted future payment value is discounted to the present value using a market discount rate. The method used to price these liabilities is considered Level 3, due to the subjective nature of the unobservable inputs used to determine the fair value. Valuation of our Redeemable Common Stock and Executive Stock Repurchase Agreements Obligations Prior to the IPO in fiscal 2015, 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 Consolidated Balance Sheets and changes in fair value were recorded in Retained earnings. Historically, the fair value of a share of common stock was determined by management by applying industry appropriate multiples to EBITDA and performing a discounted cash flow analysis. Under the industry-appropriate multiples approach, to arrive at concluded multiples, we considered differences between the risk and return characteristics of ADS and the guideline companies. Under the discounted cash flow analysis, the cash flows expected to be generated by the Company are discounted to their present value equivalent using a rate of return that reflects the relative risk of an investment in ADS, as well as the time value of money. This return is an overall rate based upon the individual rates of return for invested capital (equity and interest-bearing debt). The return, known as the WACC, is calculated by weighting the required returns on interest-bearing debt and common stock in proportion to their estimated percentages in an expected capital structure. An increase in the WACC would decrease the fair value of the Redeemable common stock. The categorization of the framework used to price this mezzanine equity is considered 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, became unenforceable upon effectiveness of the IPO on July 25, 2014. As a result, the Redeemable common stock was recorded at fair value through the effective date of the IPO and was subsequently reclassified at that fair value to stockholders’ equity. See Note 1 for more information on the IPO. The liability associated with the executive stock repurchase agreements was valued on the same basis as the Redeemable common stock, and as such is also considered a Level 3 measurement. The executive stock repurchase agreements were terminated upon the IPO. As a result, this liability was recorded at fair value through the effective date of the IPO and was subsequently reclassified at that fair value to stockholders’ equity. See Note 16. Stockholders’ Equity for more information on the executive stock repurchase agreements. Valuation of our Redeemable Convertible Preferred Stock Prior to the effective date of the IPO, the Trustee of the Company’s ESOP had the ability to put the shares of our Redeemable convertible preferred stock to the Company. Our Redeemable convertible preferred stock is recorded at its fair value in the mezzanine equity section of our Consolidated Balance Sheets and changes in fair value are recorded in Retained earnings or as a reduction of Paid in capital to the extent there is not sufficient Retained earnings. Accordingly, we estimated the fair value of the Redeemable convertible preferred stock through estimating the fair value of the Company’s common stock and applying certain adjustments including for the fair value of the total dividends to be received and assuming conversion of the Redeemable convertible preferred stock to common stock at the stated conversion ratio per our Certificate of Incorporation. The categorization of the framework used to price this temporary equity is considered 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 March 31, 2016, 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 and Note 17. Mezzanine Equity for additional information on the Redeemable common stock and Redeemable convertible preferred stock. Non-recurring Valuation of Investment in the South American Joint Venture During the fourth quarter of the fiscal year ended March 31, 2016, the Company recorded an impairment charge related to its investment in the South American Joint Venture equal to the difference between the fair value of the investment and the carrying value. The method used to value the investment is considered Level 3 due to the subjective nature of the unobservable inputs used to determine the fair value. In the determination of fair value of its investment, the Company used an income approach based on internal forecasts of expected future cash flows. Significant unobservable inputs included the WACC used to discount the future cash flows, which were between 9.3% and 15.5%, based on the markets in which the South American Joint Venture business conducts. See Note 10. Investment in Unconsolidated Affiliates.

Investment in Affiliates

Investment in Affiliates	12 Months Ended
	Mar. 31, 2016
Subsidiaries [Member]
Investment in Affiliates	9. INVESTMENT IN CONSOLIDATED AFFILIATES We participate in two consolidated joint ventures, ADS Mexicana, which is 51% owned by our wholly-owned subsidiary ADS Worldwide, Inc., and BaySaver, which is 65% owned by our wholly-owned subsidiary ADS Ventures, Inc. In each case, the equity owned by our joint venture partner is shown as either Noncontrolling interest in subsidiaries (in the case of ADS Mexicana) or Redeemable noncontrolling interest in subsidiaries (in the case of BaySaver) in our Consolidated Balance Sheets and our joint venture partner’s portion of net income is shown as Net income attributable to noncontrolling interest in our Consolidated Statements of Operations. ADS Mexicana We participate in joint ventures from time to time for the purpose of expanding upon our growth of manufacturing and selling HDPE corrugated pipe in emerging markets. We invested in ADS Mexicana for the purpose of expanding upon our growth of manufacturing and selling ADS licensed HDPE corrugated pipe and related products in the Mexican and Central American markets via the joint venture partner’s local presence and expertise throughout the region. In April 2013, ADS Worldwide acquired an additional 1% equity interest in its consolidated subsidiary ADS Mexicana stock for $520, increasing the Company’s ownership percentage to 51% from 50%. We have executed a Technology, Patents and Trademarks Sub-License The table below includes the assets and liabilities of ADS Mexicana that are consolidated as of March 31, 2016 and 2015. The balances exclude intercompany transactions that are eliminated upon consolidation. (Amounts in thousands) 2016 2015 Assets Current assets $ 27,650 $ 24,822 Property, plant and equipment, net 17,461 18,556 Other noncurrent assets 1,742 2,523 Total assets $ 46,853 $ 45,901 Liabilities Current liabilities $ 10,769 $ 11,134 Noncurrent liabilities 5,390 5,259 Total liabilities $ 16,159 $ 16,393 BaySaver BaySaver was established in July 2013 to design, engineer, manufacture, market and sell water quality filters and separators used in the removal of sediment and pollution from storm water anywhere in the world except New Zealand, Australia and South Africa. The Company’s original investment represented a 55% equity interest and a 50% voting interest in BaySaver. On July 17, 2015, the Company acquired an additional 10% of the issued and outstanding membership interests in the BaySaver joint venture. Concurrent with the additional investment in July 2015, we also entered into an amendment to the BaySaver joint venture agreement to change the voting rights from an equal vote for each member to a vote based upon the ownership interest. As a result, the Company increased its ownership interest to 65% of the issued and outstanding membership interests in BaySaver and obtained the majority of the voting rights. As such, while we had previously accounted for our investment in BaySaver under the equity method of accounting, we have concluded that the additional investment results in a step acquisition of BaySaver that will be treated as a business combination. As a result, our consolidated financial statements include the consolidation of BaySaver’s financial statements beginning on July 17, 2015. See Note 3. Acquisitions for additional information. The table below includes the assets and liabilities of BaySaver that are consolidated as of March 31, 2016. The balances exclude intercompany transactions that are eliminated upon consolidation. (Amounts in thousands) 2016 Assets Current assets $ 3,121 Property, plant and equipment, net 140 Other noncurrent assets 12,668 Total assets $ 15,929 Liabilities Current liabilities $ 1,696 Total liabilities $ 1,696
Unconsolidated Affiliates [Member]
Investment in Affiliates	10. INVESTMENT IN UNCONSOLIDATED AFFILIATES We participate in two unconsolidated joint ventures, South American Joint Venture, which is 50% owned by our wholly-owned subsidiary ADS Chile, and Tigre-ADS (“Tigre-ADS South American Joint Venture Our investment in this unconsolidated joint venture was formed for the purpose of expanding upon our growth of manufacturing and selling HDPE corrugated pipe in the South American market via the joint venture partner’s local presence and expertise throughout the region. We are not required to consolidate the South American Joint Venture as we are not the primary beneficiary, although we do hold a significant variable interest in the South American Joint Venture through our equity investment and debt guarantee. Summarized financial data as of the fiscal years ended March 31 for the South American Joint Venture is as follows: (Amounts in thousands) 2016 2015 Investment in South American Joint Venture (a) $ 10,256 $ 17,081 Receivable from South American Joint Venture 3,201 5,607 (a) Includes capital contributions of $4,000 during the fiscal year ended March 31, 2015. During the fourth quarter of the fiscal year ended March 31, 2016, the Company determined there was an other-than-temporary decline in the fair value of its investment in the South American Joint Venture, resulting from a further decline of unfavorable regional economic conditions. Accordingly, we recorded an impairment charge of $4,000, reducing the carrying value of the investment to its fair value. The impairment charge is included in Equity in net loss of unconsolidated affiliates in the Consolidated Statements of Operations. BaySaver As noted above, in July 2015, we began consolidating BaySaver after we acquired an additional 10% interest in BaySaver and obtained the majority of the voting rights. Prior to the acquisition, we accounted for our investment in BaySaver as an investment in an unconsolidated affiliate. See Note 3. Acquisitions. Summarized financial data for the fiscal year ended March 31, 2015 for the BaySaver joint venture is as follows: (Amounts in thousands) 2015 Investment in BaySaver $ 4,906 Receivable from BaySaver 59 Tigre-ADS On April 7, 2014, ADS Ventures, Inc., a wholly-owned subsidiary of the Company, and Tigre S.A. — Tubos e Conexoes entered into a stock purchase agreement to form a joint venture, Tigre-ADS Tigre-ADS Tigre-ADS Tigre-ADS Tigre-ADS Summarized financial data as of the fiscal years ended March 31 for the Tigre-ADS (Amounts in thousands) 2016 2015 Investment in Tigre-ADS $ 2,932 $ 3,051 Receivable from Tigre-ADS 45 27

Related Party Transactions

Related Party Transactions	12 Months Ended
	Mar. 31, 2016
Related Party Transactions [Abstract]
Related Party Transactions	11. RELATED PARTY TRANSACTIONS ADS Mexicana ADS conducts business in Mexico and Central America through its joint venture ADS Mexicana. ADS owns 51% of the outstanding stock of ADS Mexicana and consolidates its interest in ADS Mexicana for financial reporting purposes. During the fiscal years ended March 31, 2016, 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 and a noncompete arrangement, respectively. These cash payments totaled $242, $459, and $817 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively. Occasionally, ADS and ADS Mexicana jointly enter into agreements for pipe sales with their related parties which totaled $0, $3,783, and $6,687 in the years ended March 31, 2016, 2015 and 2014, respectively. Outstanding receivables related to these sales were $344 and $1,005 at March 31, 2016 and 2015, respectively. In February 2015, ADS Mexicana loaned $5,000 to an entity owned by a Grupo Altima owner and such loan was repaid the same month. The applicable interest rate for the loan was 2.35%. In April 2015, ADS Mexicana borrowed $3,000 under a revolving credit facility arrangement with Scotia Bank and loaned that amount to ADS. The 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. The applicable interest rate for the loans was 4.81%. 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 the ADS Mexicana Revolving Credit Facility, and our maximum potential payment under this guarantee totals $12,000. See Note 12. Debt. South American Joint Venture Our South American Joint Venture manufactures and sells HDPE corrugated pipe in the South American market. We are the guarantor for 50% of the South American Joint Venture’s credit facility, and the debt guarantee is shared equally with the joint venture partner. Our maximum potential obligation under this guarantee totals $11,000 as of March 31, 2016. The maximum borrowing permitted under the South American Joint Venture’s credit facility is $19,000. This credit facility allows borrowings in either Chilean pesos or US dollars at a fixed interest rate determined at inception of each draw on the facility. The guarantee of the South American Joint Venture’s debt expires on July 31, 2017. ADS does not anticipate any required contributions related to the balance of this credit facility. As of March 31, 2016 and 2015, the outstanding principal balance of the credit facility including letters of credit was $16,681 and $13,600, respectively. The weighted average interest rate as of March 31, 2016 was 3.45% on U.S. dollar denominated loans and 7.41% 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, the South American Joint Venture enters into agreements for pipe sales with ADS and its other related parties, which were $1,207 and $902 in the fiscal years ended March 31, 2016 and 2015, respectively. 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 stock of BaySaver and consolidates its interest in BaySaver. BaySaver may at times provide short-term financing to ADS to enhance liquidity. As of March 31, 2015, BaySaver held unsecured, interest-free, notes receivable from ADS of $500, which were fully paid in fiscal year 2016. During fiscal years 2016 and 2015, ADS received member distributions of $975 and $1,100, respectively, from 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	12 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Debt	12. DEBT Long-term debt as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Bank Term Loans Revolving Credit Facility — ADS $ 166,000 $ 205,100 Revolving Credit Facility — ADS Mexicana — — Term Note 82,500 91,250 Senior Notes payable 100,000 100,000 Industrial revenue bonds 2,715 3,545 ADS Mexicana Scotia bank revolving credit facility — — Total 351,215 399,895 Current maturities (35,870 ) (9,580 ) Long-term debt obligation $ 315,345 $ 390,315 Bank Term Loans The Bank Term Loans include a Revolving Credit Facility with borrowing capacity of $325,000 for ADS, Inc., a Revolving Credit Facility for ADS Mexicana with borrowing capacity of $12,000 (“the Revolving Credit Facilities”) and a $100,000 term note (“Term Note”). The Revolving Credit Facilities expire and the Term Note is due in June 2018. Principal payments of $2,500 per quarter are due on the Term Note throughout the remaining term. The Revolving Credit Facilities and the Term Note have a variable interest rate that depends upon the Company’s “pricing ratio” as defined in the agreements for the Revolving Credit Facilities. The interest rate is derived from the London Inter-Bank Offered Rate (“LIBOR”) or alternate base rate (“Prime Rate”) at the Company’s option. The average rates were 2.70%, 2.64%, and 2.30% at March 31, 2016, 2015 and 2014, respectively. Letters of credit outstanding at March 31, 2016 amounted to $10,952 and reduce the availability of the Revolving Credit Facilities. The amount available for borrowing for ADS, Inc. and ADS Mexicana was $148,048 and $12,000, respectively at March 31, 2016. Per the terms of the agreements for the Revolving Credit Facilities, ADS is not required to hedge its interest exposure using interest rate swaps; however, it has been the objective of ADS to manage its exposure to variable rate debt. On July 18, 2013, ADS executed two Forward Interest Rate Swaps on the 30-Day Senior Notes Payable In December 2009, we signed an agreement with Prudential Investment Management, Inc. for the issuance of senior promissory notes (“Senior Notes”), for an aggregate amount of up to $100,000. During fiscal 2010, we issued $75,000 of Senior Notes with interest fixed at 5.6% and payable quarterly. The rate is subject to an additional 200 basis point excess leverage fee if our calculated leverage ratio exceeds 3 to 1 at the end of a fiscal quarter. A principal payment of $25,000 is due in each of fiscal years 2017, 2018, and 2019. In July 2013, ADS issued an additional $25,000 of Senior Notes. Interest for the additional $25,000 is payable quarterly and is fixed at 4.05%. The rate is subject to an additional 200 basis point excess leverage fee if calculated leverage ratio exceeds 3 to 1 at the end of a fiscal quarter. A principal payment of $25,000 is due in September of fiscal year 2020. Industrial Revenue Bonds Between 1996 and 2007, ADS issued industrial revenue bonds for the construction of four production facilities. Two of the bonds were retired during fiscal 2011 and one of the bonds was retired in fiscal 2015. The remaining bond requires quarterly principal payments until it matures in February 2019 and has a variable interest rate based on the Securities Industry and Financial Markets Association (SIFMA) municipal swap index rate which is computed weekly. The rate on this bond at March 31, 2016, was 4.27%, including a letter of credit fee of 3.75%. Land and buildings with a net book value of approximately $9,706 at March 31, 2016, collateralize the bonds. These bonds are not considered auction rate securities. 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 March 31, 2016, there was no outstanding principal drawn on the 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. Debt Covenants and Dividend Restrictions The Bank Term Loans and the Senior Notes require, among other provisions, that we (1) maintain a 1.25 to 1 minimum fixed charge coverage ratio; (2) maintain a maximum leverage ratio of 4 to 1; and (3) establish certain limits on permitted transactions, principally related to indebtedness, capital distributions, loans and investments, and acquisitions and dispositions of assets. Capital distributions, including dividends, are prohibited if we are not in compliance with our debt covenants. In any fiscal year, if we are in compliance with all debt covenants and the pro-forma In addition, according to the terms of the ADS Mexicana Revolving Credit Facility, ADS Mexicana is not permitted to make loans to ADS, Inc. Principal Maturities Maturities of long-term debt (excluding interest) as of March 31, 2016 are summarized below: Fiscal Years Ending March 31, (Amounts in thousands) 2017 2018 2019 2020 2021 Thereafter Total Principal maturities $ 35,870 $ 35,905 $ 254,440 $ 25,000 $ — $ — $ 351,215 Fiscal Year 2016 Amendments and Consents Related to the Bank Term Loans and Senior Notes From July 2015 through February 2016, the Company amended the Bank Term Loans and Senior Notes and also obtained various consents from those lenders. These amendments and consents had the effect of: i) extending the time for delivery of our fiscal 2015 audited financial statements and first, second and third quarter fiscal 2016 quarterly financial information to April 1, 2016, whereby an event of default was waived as long as those items were delivered by that date without regard to any grace period, 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, as well as the annual dividend of $0.0195 per share to be paid on shares of preferred stock in March 2016. Subsequent Event Related to the Bank Term Loans and Senior Notes In July 2016, the Company obtained additional consents from the lenders of the Bank Term Loans and Senior Notes. These consents had the effect of extending the time for delivery of our fiscal 2016 audited financial statements to August 31, 2016, and first quarter fiscal 2017 quarterly financial information to October 15, 2016, whereby an event of default was waived as long as those items are delivered within a 15 day grace period after those dates. In addition, the consents also permitted the Company’s payment of quarterly dividends of $0.06 per share on common shares in each of June and September 2016, as well as the annual dividend of $0.0195 per share to be paid on shares of preferred stock in March 2017.

Derivative Transactions

Derivative Transactions	12 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Derivative Transactions	13. DERIVATIVE TRANSACTIONS The Company uses interest rate swaps, commodity options in the form of collars and swaps, and foreign currency forward contracts to manage its various exposures to interest rate, commodity price, and foreign currency exchange rate fluctuations. For interest rate swaps, gains and losses resulting from the difference between the spot rate and applicable base rate is recorded in interest expense. For collars, commodity swaps and foreign exchange forward contracts, contract settlement gains and losses are recorded in the Consolidated Statements of Operations in Derivative (gains) losses and other expense (income), net. Gains and losses related to mark-to-market A summary of the fair values for the various derivatives at March 31, 2016 and 2015 is presented below: 2016 Assets Liabilities (Amounts in thousands) Receivables Other assets Other accrued Other Interest rate swaps $ — $ — $ (252 ) $ — Foreign exchange forward contracts — — — — Diesel fuel option collars and swaps — 11 (2,609 ) (6 ) Propylene swaps — — (8,027 ) — 2015 Assets Liabilities (Amounts in thousands) Receivables Other assets 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 ) The Company recorded losses and (gains) on mark-to-market Unrealized Mark to Market Losses (Gains) (Amounts in thousands) 2016 2015 2014 Interest rate swaps $ (513 ) $ (236 ) $ (81 ) Foreign exchange forward contracts 28 (28 ) — Diesel fuel option collars (237 ) 2,841 55 Propylene swaps 2,885 5,169 (27 ) $ 2,163 $ 7,746 $ (53 ) Realized Losses (Gains) (Amounts in thousands) 2016 2015 2014 Foreign exchange forward contracts $ (150 ) $ 5,636 $ — Diesel fuel option collars 3,142 736 — Propylene swaps 11,742 1,333 (84 ) $ 14,734 $ 7,705 $ (84 ) Total realized and unrealized losses (gains) included in Derivative losses (gains) and other expense (income), net (1) $ 16,897 $ 15,451 $ (137 ) (1) The total balance in Derivative losses (gains) and other expense (income), net in the Consolidated Statements of Operations also includes other income items of ($322), ($1,081), and ($1,040) at March 31, 2016, 2015 and 2014, respectively.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	14. COMMITMENTS AND CONTINGENCIES Purchase Commitments We secure supplies of resin raw material by agreeing to purchase quantities during a future given period at a fixed price. These purchase contracts range from 1 to 12 months and occur in the ordinary course of business. Under such purchase contracts in place at March 31, 2016, we have agreed to purchase resin over the period April 2016 through December 2016 at a committed purchase cost of $18,715. 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), 10b-5 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.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Mar. 31, 2016
Postemployment Benefits [Abstract]
Employee Benefit Plans	15. EMPLOYEE BENEFIT PLANS Employee Stock Ownership Plan (ESOP) We established the Advanced Drainage Systems, Inc. ESOP (the “ESOP” or the “Plan”) effective April 1, 1993. The Plan was funded through a transfer of assets from our tax-qualified 30-year tax-qualified tax-qualified We are obligated to make contributions to the Plan, which, when aggregated with the Plan’s dividends, equal the amount necessary to enable the Plan to make its regularly scheduled payments of principal and interest due on its term loan to ADS. As the Plan makes annual payments of principal and interest, an appropriate percentage of preferred stock is allocated to ESOP participants’ accounts in accordance with plan terms that are compliant with applicable Internal Revenue Code and regulatory provisions. The value of Redeemable convertible preferred stock held by the ESOP trust, but not yet earned by the ESOP participants or used for dividends, is reported as Deferred compensation — unearned ESOP shares within the mezzanine equity section of our Consolidated Balance Sheets. Compensation expense and related dividends paid with ESOP shares are recognized based upon the average annual fair value of the shares allocated. The shares allocated are for services rendered throughout the period and, therefore, a simple average is used to calculate the average annual fair value. Deferred compensation — unearned ESOP shares is relieved at fair value, with any difference between the annual average fair value and the carrying value of shares when allocated being added to Additional paid in capital. The fair value of the shares allocated was $16.35, $22.05, and $11.16 per share of Redeemable convertible preferred stock at March 31, 2016, 2015 and 2014, respectively, resulting in an average annual fair value per share of $19.20, $16.61, and $10.90 per share for the fiscal years ended March 31, 2016, 2015 and 2014, respectively. During the fiscal years ended March 31, 2016, 2015 and 2014, we recognized compensation expense of $10,250, $12,144, and $7,891, respectively, related to allocation of ESOP shares to participants. Required dividends on allocated shares are generally passed through and paid in cash to the participants and required dividends on unallocated shares are paid in cash to the Plan and generally used to service the Plan’s debt. On January 6, 2014, the Board of Directors declared a cash dividend of $1.59 (the “Special Dividend”) per share for a total amount of approximately $108,101, on all outstanding shares of our common stock and Redeemable convertible preferred stock. We paid the Special Dividend on January 15, 2014 to all stockholders of record on January 2, 2014. The payment of the Special Dividend was financed through the Company’s Revolving Credit Facilities. For additional details on the Revolving Credit Facilities, please refer to Note 12. Debt. The Special Dividend on the ESOP’s allocated shares was paid in cash (i.e., passed through) to participants, and the Special Dividend on the ESOP’s unallocated shares was retained by the ESOP and allocated among the participants’ ESOP cash accounts. The allocation of cash among the participants’ ESOP cash accounts related to dividends paid on unallocated shares resulted in additional compensation expense for the fiscal year ended March 31, 2014 of $25,134, of which $13,896 was included in Cost of goods sold, $4,550 was included in Selling expenses, and $6,688 was included in General and administrative expenses in the Consolidated Statements of Operations. In the fiscal years ended March 31, 2016 and 2015, the ESOP committee directed the Plan trustee to retain $2,531 and $824, respectively, in dividends on unallocated ADS shares rather than to service the Plan’s debt. These dividends were allocated to participants based on the total shares in their account in relation to total shares allocated at March 31, 2016 and 2015. In the fiscal years ended March 31, 2016 and 2015, 542 and 737 shares of Redeemable convertible preferred stock, respectively, were allocated to the ESOP participants, including, in addition to the cash dividends, 8 and 6 preferred shares allocated as dividends, respectively. See Note 17. Mezzanine Equity for further details on the shares of Redeemable convertible preferred stock held by our ESOP. Executive Termination Payments ADS has employment agreements with certain executives that include potential payments to be made to those executives upon termination. The terms of the termination payments vary by executive, but are generally based on current base salary and bonus levels at the time of termination. The contractual termination payments vest upon either (1) certain contingent occurrences terminating employment such as death, disability, layoff, the executive voluntarily quitting due to a breach of covenants by the Company or for other “good reason” or (2) the executive reaching a specified retirement age while still working for the Company, as defined in the individual employee agreement. The Company accrues a liability from the effective date of the executive’s employment agreement to the date the executive reaches the required retirement age while working for the Company, which is considered the service period for this obligation. The liability is estimated based on each executive’s current base salary and bonus levels. Because the executives vest in the termination payments equally over the relevant service period, the Company recognizes the related compensation expense based on the straight-line method over the service period. If an executive terminates their employment prior to reaching the required retirement age, no payment is required and the previously-recorded compensation expense for that executive is reversed and recorded as a benefit to compensation expense in the period the executive terminates employment. The compensation expense (benefit) recorded related to the executive termination payments for the fiscal years ended March 31, 2016, 2015 and 2014 was ($294), $328 and $737, respectively, and is included in General and administrative expenses in the Consolidated Statements of Operations. As of March 31, 2016 and 2015, the executive termination payment obligation was $4,005 and $4,299, respectively, and is included in Other liabilities in the Consolidated Balance Sheets. Profit-Sharing Plan We have a tax-qualified

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Stockholders' Equity	16. STOCKHOLDERS’ EQUITY The Board of Directors approved a dividend of $0.05 per share of common stock during each quarter of fiscal 2016. In fiscal 2015 the Board of Directors approved a dividend of $0.04 per share of common stock in each of the third and fourth quarters, while no dividends were declared in the first or second quarters. In fiscal 2014, the Board of Directors approved the Special Dividend during the fourth quarter, as well as quarterly cash dividends of $0.029 per share during each of the first three quarters. Total cash dividends paid on common stock during the fiscal years ended March 31, 2016, 2015 and 2014 were $10,815, $4,270, and $77,592, respectively. During the fiscal year ended March 31, 2016, there were no purchases of common stock. During the fiscal year ended March 31, 2015, we purchased a negligible amount of fractional shares subsequent to the IPO at a price of $17.21 per share. In fiscal year ended March 31, 2014, we purchased 80 shares from certain stockholders at a purchase price of $13.64 per share. See Note 12. Debt for a description of restrictions on the payment of dividends imposed under our Bank Term Loans and Senior Notes agreements. Executive Stock Repurchase Agreements In fiscal 2007, the Company entered into stock repurchase agreements with certain executives, whereby the Company was required to repurchase shares of the Company’s common stock held by the executive at the current fair market value upon the executive’s death or certain events of termination, as defined. The amount of shares required to be repurchased by the Company from the executive and which the executive or the executive’s heir or estate was obligated to sell to the Company, was limited to the anticipated proceeds from life insurance policies held by the Company (referred to as a mandatorily redeemable obligation). In the case where shares were not repurchased due to the fair value of the shares exceeding the life insurance proceeds, the executive or the executive’s heir or estate had a put right up to a set dollar amount allowing the common stock to be put to the Company at the current fair market value (referred to as an executive’s put right). The stock repurchase agreements included termination clauses such that they would automatically terminate if a change in control event or an IPO occurred prior to the executive’s death. Prior to the termination of the stock repurchase agreements upon the IPO in July 2014, the Company classified all shares subject to the mandatorily redeemable obligation as liabilities and all shares subject to an executive’s put rights as mezzanine equity. For those shares classified as liabilities, changes in the fair value of the shares were recognized as compensation expense. The related compensation expense for the fiscal years ended March 31, 2015 and 2014 was $1,011 and $2,579, respectively, and is included in General and administrative expenses in the Consolidated Statements of Operations. For those shares classified as mezzanine equity, the balance was recorded in Redeemable common stock and changes in the fair value of the shares were recorded as adjustments to Retained earnings (deficit) and Paid-in capital. The changes in fair value recorded as adjustments to Retained earnings (deficit) were $(1,254) and $(240) for the fiscal years ended March 31, 2015 and 2014, respectively. After the termination of the stock repurchase agreements upon the IPO in July 2014, the Company reclassified the carrying amount of the mandatorily redeemable obligation portion of the shares of $18,236 and the executive put right portion of the shares of $1,493 to Paid-in Subsequent Events Related to Stockholders’ Equity During each of the first and second quarters of fiscal 2017, the Company declared a quarterly cash dividend of $0.06 per share of common stock. The first quarter dividend was payable on June 30, 2016 to stockholders of record at the close of business on June 16, 2016, and the second quarter dividend was payable on September 15, 2016 to stockholders of record at the close of business on September 1, 2016.

Mezzanine Equity

Mezzanine Equity	12 Months Ended
	Mar. 31, 2016
Text Block [Abstract]
Mezzanine Equity	17. MEZZANINE EQUITY Redeemable Common Stock Prior to the July 2014 IPO , one of our minority equity owners along with other shareholders who hold ownership in ADS of at least 15% (referred to as “Major Shareholders”) entered into an agreement which provided the Major Shareholders the right to put their common stock to the Company at fair value if, following the fifth anniversary of the recapitalization that occurred during 2010, a Major Shareholder demands that the Company effect an IPO covering the registration of at least $50,000 of securities, and either the Company advises the Major Shareholder that ADS will not begin preparations for an IPO within 180 days after delivery, or after such preparations have begun they are discontinued (the “Major Shareholders’ Put Right”). As the Major Shareholders’ Put Right was a redemption right which prior to the IPO was outside the control of ADS, we classified common stock held by the Major Shareholders in the mezzanine equity section of our Consolidated Balance Sheets at its fair value, and changes in fair value were recorded in Retained earnings. 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, became unenforceable upon effectiveness of the IPO on July 25, 2014. As a result, the Redeemable common stock was recorded 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. As a result of the IPO, there are 10,101 shares of common stock held by Major Shareholders, which are now classified in stockholders’ equity. In addition, stock repurchase agreements with certain executives provided the executive or the executive’s heir or estate with put rights up to a set dollar amount allowing their common stock to be put to the Company. Prior to the termination of the stock repurchase agreements upon the IPO in July 2014, the Company classified all shares subject to the executive’s put rights as Redeemable common stock. After the termination of the stock repurchase agreements upon the IPO, the Company reclassified the carrying amount of the shares subject to the executive put rights to Paid-in Redeemable Convertible Preferred Stock The Trustee of the Company’s ESOP has the ability to put shares of our Redeemable convertible preferred stock to the Company. The Redeemable convertible preferred stock has a required cumulative 2.5% dividend (based on the issue price of $0.781 per share) and is convertible at a rate of 0.7692 shares of common stock for each share of Redeemable convertible preferred stock. We guarantee the value of the Redeemable convertible preferred stock at $0.781 per share. The put option requirements of the Internal Revenue Code apply in the event that the Company’s common stock is not a registration type class of security or its trading has been restricted. Therefore, the holders of Redeemable convertible preferred stock have a put right to require us to repurchase such shares in the event that our common stock is not listed for trading or otherwise quoted on the NYSE, AMEX, NASDAQ, or any other market more senior than the OTC Bulletin Board. As of March 31, 2016, the applicable redemption value was $0.781 per share as there were no unpaid cumulative dividends. Given that the event that may trigger redemption of the Redeemable convertible preferred stock (the listing or quotation on a market more senior than the OTC Bulletin Board) is not solely within our control, our Redeemable convertible preferred stock is presented in the mezzanine equity section of our Consolidated Balance Sheets. As of March 31, 2016, we did not adjust the carrying value of the Redeemable convertible preferred stock to its redemption value or recognize any changes in fair value as we did not consider it probable that the Redeemable convertible preferred stock would become redeemable. The Board of Directors approved the 2.5% annual dividend to be paid March 31 of each fiscal year to the stockholders of record as of March 15, 2016, 2015 and 2014. The annual dividend was paid in cash and stock on the allocated shares. During the first quarter of 2017, the Board of Directors approved the 2.5% annual dividend to be paid on March 31, 2017 to stockholders of record as of March 1, 2017. In addition, the Board of Directors approved a quarterly discretionary cash dividends of $0.0221 per share during the first three quarters of the fiscal year ended March 31, 2014. As noted above, the Redeemable convertible preferred stockholders also received the Special Dividend during the fourth quarter of fiscal 2014. The Special Dividend and the discretionary dividends on unallocated shares of Redeemable convertible preferred stock were allocated to participants rather than being used to service the Plan’s debt as described in Note 15. Employee Benefit Plans. Cash and stock dividends on allocated Redeemable convertible preferred stock for the fiscal years ended March 31, 2016 and 2015, respectively, are summarized in the following table. For additional information on dividends paid to the unallocated Redeemable convertible preferred stock, please refer to Note 15. Employee Benefit Plans. (Amounts in thousands) 2016 2015 Quarterly cash dividends $ 1,272 $ 507 Annual cash dividends 21 27 Total cash dividends $ 1,293 $ 534 Annual stock dividend 132 127 Annual cash dividend 21 27 Total ESOP required dividends $ 153 $ 154 Allocated shares 7,831 7,914 Required dividend per share 0.0195 0.0195 Required dividends $ 153 $ 154 Redeemable Noncontrolling Interest in Subsidiaries On July 17, 2015, the Company acquired an additional 10% of the issued and outstanding membership interests in BaySaver’s issued and outstanding membership interests, increasing the Company’s total ownership to 65%. Concurrent with our purchase of the additional membership investment, the BaySaver joint venture agreement was amended to change 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 and BaySaver is consolidated into our financial statements after July 17, 2015. The membership interests held by the joint venture partner are presented in Redeemable noncontrolling interest in subsidiaries in our Consolidated Balance Sheets, which is classified as mezzanine equity, 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 in subsidiaries balance will be accreted to the redemption value using the effective interest method until April 1, 2017. See Note 3. Acquisitions for further discussion of the BaySaver transaction.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	18. STOCK-BASED COMPENSATION ADS has several programs for stock-based payments to employees and directors, including stock options and restricted stock. Equity-classified stock option and restricted stock awards are measured based on the grant-date estimated fair value of each award. Liability-classified stock option and restricted stock awards are re-measured pro-rata Compensation expense for stock options and restricted stock is recognized on a straight-line basis over the employee’s requisite service period, which is generally the vesting period of the grant. The fair value of stock options is estimated using the Black-Scholes option pricing model. The fair value of restricted stock is based on the fair value of the Company’s common stock. Stock-based compensation expense is recorded in General and administrative expenses, Selling expenses and Cost of goods sold in the Consolidated Statements of Operations. The stock-based compensation liability associated with stock options and restricted stock expected to vest within the next twelve months is recorded in Current portion of liability-classified stock-based awards, with the portion related to those expected to vest beyond twelve months recorded in Other liabilities in the Consolidated Balance Sheets. The Company recognized stock-based compensation expense (benefit) in the following line items on the Consolidated Statements of Operations for the fiscal years ended March 31, 2016, 2015 and 2014: (Amounts in thousands) 2016 2015 2014 Component of income before income taxes: Cost of goods sold $ (300 ) $ 1,100 $ — Selling expenses (500 ) 1,500 — General and administrative expenses (5,068 ) 21,647 4,338 Total stock-based compensation expense (5,868 ) 24,247 4,338 Stock Options Our 2000 stock option plan (“2000 Plan”) provides for the issuance of statutory and non-statutory Our 2013 stock option plan (“2013 Plan”) provides for the issuance of non-statutory Both the 2000 Plan and the 2013 Plan permit the employees to satisfy their personal tax liability associated with the exercise of the stock options through the net settlement of shares in excess of the minimum tax withholding required by law. In addition, prior to the Company’s initial public offering in fiscal 2015, the Company had periodically repurchased shares resulting from option exercises within six months of the exercise date. As such, the Company accounts for all 2000 Plan and 2013 Plan awards as liability-classified awards. The Company determines the fair value of the options based on the Black-Scholes option pricing model. This methodology requires significant inputs including the price of our common stock, risk-free interest rate, dividend yield and expiration date. During the fiscal years ended March 31, 2016, 2015 and 2014, we recognized total stock-based compensation expense (benefit) under both stock option plans of $(6,784), $21,666, and $2,312, respectively. As of March 31, 2016, there was a total of $7,738 of unrecognized compensation expense related to unvested stock option awards that will be recognized as an expense as the awards vest over the remaining weighted average service period of 2.4 years. We estimate the fair value of stock options using a Black-Scholes option-pricing model, with assumptions as summarized in the following table. For the periods prior to our IPO in fiscal 2015, the price of our common stock, as a private company, was based on an estimate of its fair value. 2016 2015 2014 Common stock price $18.34 - $33.03 $14.33 - $29.94 $13.64 - $14.33 Expected stock price volatility 31.1% - 39.3% 28.2% - 51.0% 26.7% - 53.7% Risk-free interest rate 0.5% - 1.5% 0.1% - 1.8% <0.1% - 2.4% Weighted-average expected option life (years) 0.5 – 6.2 0.5 - 7.2 0.1 – 7.2 Dividend yield 0.9% 0.5% 0.8% In May 2014, the Board of Directors approved the increase of shares available for granting under the 2013 plan to 1,412 shares. We had approximately 1,123 and 1,412 shares available for granting under the 2000 and 2013 plans, respectively, as of March 31, 2016. 2000 Plan The stock option activity for the fiscal year ended March 31, 2016 is summarized as follows: Number Weighted Weighted Outstanding at beginning of year 746 $ 10.75 4.1 Granted — — — Exercised (215 ) 8.31 — Forfeited (16 ) 8.81 — Outstanding at end of year 515 11.82 4.2 Vested at end of year 439 11.14 3.5 Unvested at end of year 76 15.74 8.4 Fair value of options granted during the year $ — All outstanding options are expected to vest. The following table summarizes information about the unvested stock option grants as of the fiscal year ended March 31, 2016: Number of Weighted Unvested at beginning of year 78 $ 6.76 Granted — — Vested — — Forfeitures (2 ) 6.76 Unvested at end of year 76 $ 6.76 The total fair value of options that vested during the fiscal years ended March 31, 2015 and 2014 were $8,052 and $1,212, respectively (no options vested in fiscal 2016). The weighted average grant date fair value of stock options granted during the fiscal years ended March 31, 2015 and 2014 were $6.76 and $6.38, respectively (no options were granted in fiscal 2016). The aggregate intrinsic value for options outstanding and currently exercisable as of March 31, 2016 was $4,888 and $4,283, respectively. The total intrinsic value of options exercised during the fiscal years ended March 31, 2016, 2015 and 2014 were $3,702, $3,427 and $3,951, respectively. 2013 Plan The stock option activity for the fiscal year ended March 31, 2016 is summarized as follows: Number Weighted Weighted Outstanding at beginning of year 1,911 $ 13.64 8.42 Issued — — — Exercised — — — Forfeited — — — Outstanding at end of year 1,911 13.64 7.42 Vested at end of year 816 13.64 7.42 Unvested at end of year 1,095 13.64 7.42 Fair value of options granted during the year $ — All outstanding options are expected to vest. The following table summarizes information about the unvested stock option grants as of the fiscal year ended March 31, 2016: Number of Weighted Unvested at beginning of year 1,503 $ 6.22 Vested (408 ) 6.22 Unvested at end of year 1,095 $ 6.22 The weighted average grant fair value of stock options granted during the fiscal years ended March 31, 2016, 2015 and 2014 were $0, $0, and $6.22, respectively. The aggregate intrinsic value for options outstanding and currently exercisable as of March 31, 2016 was $15,924 and $7,168, respectively. The total fair value of options that vested during the fiscal years ended March 31, 2016, 2015 and 2014 were $3,584, $7,177, and $0, respectively. There were no options exercised during the fiscal years ended March 31, 2016, 2015 and 2014. Restricted Stock On September 16, 2008, the Board of Directors adopted the restricted stock plan, which provides for the issuance of restricted stock awards to certain key employees. The restricted stock generally vest ratably over a five-year period from the original restricted stock grant date, contingent on the employee’s continuous employment by ADS. In certain instances, however, a portion of the grants vested immediately or for accounting purposes were deemed to have vested immediately, including the grants to the Chief Executive Officer, which do not have a substantial risk of forfeiture as a result of different vesting provisions. Under the restricted stock plan, vested shares are considered issued and outstanding. Employees with restricted stock have the right to dividends on the shares awarded (vested and unvested) in addition to voting rights on non-forfeited Prior to the Company’s initial public offering in fiscal 2015, the Company periodically repurchased shares from employees within six months of the shares vesting. As such, for the periods prior to the Company’s initial public offering, the restricted stock awards were accounted for as liability-classified awards. In the periods subsequent to the initial public offering, the Company discontinued repurchasing employee held restricted shares due to the existence of a public market for the shares. Accordingly, upon the initial public offering the Company has modified the restricted stock awards from being accounted for as liability-classified to equity-classified awards and reclassified the carrying amount of the awards of $4,762 to Paid-in The Company recognized compensation expense of $916, $1,681, and $2,026 in the fiscal years ended March 31, 2016, 2015 and 2014, respectively, relating to the issuance of these shares; of these amounts, $0, $0, and $385 relate to restricted shares that vested immediately. We had approximately 346 shares available for grant under this plan as of March 31, 2016. The information about the unvested restricted stock grants as of March 31, 2016 is as follows: Number Weighted Unvested at beginning of year 183 $ 12.65 Granted — — Vested (69 ) 12.20 Forfeited (2 ) 12.12 Unvested at end of year 112 $ 12.97 We expect all restricted stock grants to vest. At March 31, 2016, there was approximately $1,070 of unrecognized compensation expense related to the restricted stock that will be recognized over the weighted average remaining service period of 1.6 years. During the fiscal year ended March 31, 2014 the weighted average grant date fair value of restricted stock granted was $13.64 (no restricted stock was granted in fiscal years 2016 and 2015). During the fiscal years ended March 31, 2016, 2015 and 2014 the total fair value of restricted stock that vested was $1,119, $1,926 and $1,573, respectively. Awards to Be Issued During fiscal 2016, in conjunction with the hiring of key employees, the Company became obligated to issue restricted stock and options with a fair value at the date of issuance of $487. The expense associated with this restricted stock and options will be amortized over the vesting period and has been recorded as compensation expense. Once the restricted stock and stock options are issued, they will be included in the appropriate tables above. During fiscal 2016, the Company recorded $61 of stock compensation expense related to this obligation. Non-Employee On June 18, 2014, the Company amended its then-existing Stockholders’ Agreement to authorize 282 shares of restricted stock to be granted to non-employee Non-employee The Company has determined that the restricted stock granted to directors should be accounted for as equity-classified awards. The Company recognized compensation expense of $0 and $900 for the fiscal years ended March 31, 2016 and 2015, respectively, relating to the issuance of these shares. We had approximately 234 shares available for grant under this plan as of both March 31, 2016 and 2015. The following table summarizes information about the unvested Non-Employee 2016 2015 Number of Weighted Number of Weighted Unvested at beginning of year — $ — — $ — Granted — — 48 18.88 Vested — — (48 ) 18.88 Unvested at end of year — $ — — $ — As of March 31, 2016 and 2015, there was no unrecognized compensation expense related to this restricted stock. No grants were issued under this Plan in fiscal year 2016.

Income Taxes

Income Taxes	12 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	19. INCOME TAXES The components of Income before income taxes for the fiscal years ended March 31 are as follows: (Amounts in thousands) 2016 2015 2014 United States $ 45,159 $ (4,381 ) $ 17,841 Foreign 14,140 9,304 12,856 Total $ 59,299 $ 4,923 $ 30,697 The components of Income tax expense for the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 2014 Current: Federal $ 6,889 $ 20,592 $ 21,476 State and local 2,126 3,655 3,857 Foreign 3,791 831 1,126 Total current tax expense 12,806 25,078 26,459 Deferred: Federal 10,019 (16,270 ) (5,034 ) State and local 1,431 (2,626 ) (2,687 ) Foreign (758 ) 102 899 Total deferred tax expense (benefit) 10,692 (18,794 ) (6,822 ) Total Income tax expense $ 23,498 $ 6,284 $ 19,637 For the fiscal years ended March 31, our effective tax rate varied from the statutory Federal income tax rate as a result of the following factors: 2016 2015 2014 Federal statutory rate 35.0 % 35.0 % 35.0 % Redeemable convertible preferred stock dividend (0.8 ) (3.8 ) (11.4 ) ESOP stock appreciation 5.8 82.3 8.4 ESOP compensation for Special Dividend on unallocated shares — 0.2 25.8 Effect of tax rate of foreign subsidiaries 0.8 (9.3 ) (3.0 ) State and local taxes—net of federal income tax benefit 4.3 19.7 1.2 Stock-based compensation (1.8 ) 64.7 1.2 Uncertain tax position change (3.6 ) (35.2 ) 6.8 Qualified production activity credit (0.9 ) (37.1 ) (5.6 ) Cumulative adjustments to deferred taxes — — (0.7 ) Executive repurchase agreement — 7.2 2.3 Other 0.8 3.9 4.0 Effective rate 39.6 % 127.6 % 64.0 % The Company’s effective tax rate will vary based on factors, including but not limited to, overall profitability, the geographical mix of income before taxes and discrete events. The fiscal year 2015 effective tax rate exceeded the federal statutory rate due in part to the significant permanent differences associated with non-deductible pre-tax non-deductible As discussed in Note 23. Restatement of Previously Issued Financial Statements, the Company restated its consolidated financial statements for the fiscal years ended March 31, 2016, 2015 and 2014 related to the accounting for stock-based compensation awards, as well as the compensation expense associated with certain executive employment agreements. The restatement adjustments related to the executive stock repurchase agreements and incentive stock options resulted in permanent add-backs for tax purposes. All other changes as a result of the restatement are temporary in nature with no impact to the effective tax rate, with the primary impact on the deferred tax accounts being increases to the current and non-current deferred tax assets associated with non-qualified stock options and the executive termination payments. The tax effect of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at March 31 were comprised of: (Amounts in thousands) 2016 2015 Deferred tax assets: State income taxes $ 1,927 $ 1,526 ESOP loan repayment 1,390 1,421 Receivable and other allowances 2,150 2,534 Derivatives 4,397 3,533 Inventory 1,433 11,271 Non-Qualified 4,309 6,478 Bonus accrual 1,852 1,736 Accrued rebates 1,378 1,378 Worker’s compensation 1,390 667 Contingent consideration 533 247 Purchase card accrual 232 232 Foreign NOL’s 1,507 1,504 Other 2,259 1,039 Total deferred tax assets 24,757 33,566 Less: valuation allowance (1,507 ) (1,504 ) Total net deferred tax assets 23,250 32,062 Deferred tax liabilities: Intangible assets 8,882 10,983 Property, plant and equipment 52,115 51,440 Leases 6,059 4,035 Capitalized software costs 2,935 3,159 Goodwill 3,643 2,735 Other 1,867 1,486 Total deferred tax liabilities 75,501 73,838 Net deferred tax liability $ 52,251 $ 41,776 Net deferred tax assets are included in Deferred income taxes and other current assets and Other assets on the Consolidated Balance Sheets. The related balances at March 31 were as follows: (Amounts in thousands) 2016 2015 Net current deferred tax assets $ 11,701 $ 21,056 Net non-current 63,952 62,832 The Company has not provided for U.S. federal income taxes or foreign withholding taxes on approximately $30,228 of undistributed earnings of its foreign subsidiaries at March 31, 2016 because such earnings are intended to be reinvested indefinitely with the exception of cash dividends paid by our ADS Mexicana joint venture. It is not practicable to estimate the amount of U.S. tax that might be payable on the eventual remittance of such earnings. Accounting for Uncertain Tax Positions As of March 31, 2016, the Company had unrecognized tax benefit of $7,998, which if resolved favorably, would reduce income tax expense by $7,998. A reconciliation of the beginning and ending amounts of unrecognized tax benefits for the years ended March 31, 2016, March 31, 2015 and 2014 is as follows: (Amounts in thousands) Balance as of March 31, 2013 $ 10,668 Tax positions taken in current year 2,954 Decreases in tax positions for prior years (47 ) Increases in tax positions for prior years 825 Settlements — Lapse of statute of limitations (1,545 ) Balance as of March 31, 2014 12,855 Decreases in tax positions for prior years (672 ) Increases in tax positions for prior years 336 Settlements — Lapse of statute of limitations (2,067 ) Balance as of March 31, 2015 $ 10,452 Tax positions taken in current year 917 Decreases in tax positions for prior years (599 ) Increases in tax positions for prior years 358 Settlements — Lapse of statute of limitations (3,130 ) Balance as of March 31, 2016 $ 7,998 The unrecognized tax benefits are primarily recorded in Other liabilities, and to a lesser degree in Other accrued liabilities and Deferred income taxes and other current assets, in the Company’s Consolidated Balance Sheets. These amounts include potential accrued interest and penalties of $2,689 and $460 at March 31, 2016 and 2015, respectively. It is reasonably possible that there could be a change in the amount of unrecognized tax benefits within the next twelve months due to activities of the IRS or other taxing authorities, including proposed assessments of additional tax, possible settlement of audit issues, or the expiration of applicable statutes of limitation. The Company is currently open to audit under the statute of limitations by the IRS for the fiscal years ended March 31, 2013 through March 31, 2016. The majority of the Company’s state income tax returns are open to audit under the statute of limitations for the years ended March 31, 2013 through March 31, 2016. The foreign income tax returns are open to audit under the statute of limitations for the years ended March 31, 2012 through March 31, 2016.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	12 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	20. NET INCOME (LOSS) PER SHARE Basic net income (loss) per share is calculated by dividing the Net income (loss) available 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 (loss) available to common stockholders by the weighted-average number of common stock equivalents outstanding for the period. Holders of unvested restricted stock have non-forfeitable as-converted two-class two-class 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 The Company’s Redeemable common stock is included in the weighted-average number of common shares outstanding for calculating basic and diluted net income per share. The following table presents information necessary to calculate net income (loss) per share for the fiscal years ended March 31, 2016, 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: (Amounts in thousands, except per share data) 2016 2015 2014 NET INCOME (LOSS) PER SHARE — BASIC: Net income attributable to ADS $ 25,052 $ (7,827 ) $ 4,381 Adjustment for: Change in fair value of Redeemable convertible preferred stock — (11,054 ) (3,979 ) Accretion of Redeemable noncontrolling interest in subsidiaries (932 ) — — Dividends paid to Redeemable convertible preferred stockholders (1,425 ) (661 ) (10,139 ) Dividends paid to unvested restricted stockholders (24 ) (11 ) (25 ) Net income (loss) available to common stockholders and participating securities 22,671 (19,553 ) (9,762 ) Undistributed income allocated to participating securities (1,270 ) — — Net income (loss) available to common stockholders — Basic 21,401 (19,553 ) (9,762 ) Weighted average number of common shares outstanding — Basic 53,978 51,344 47,277 Net income (loss) per common share — Basic $ 0.40 $ (0.38 ) $ (0.21 ) NET INCOME (LOSS) PER SHARE — DILUTED: Net income (loss) available to common stockholders — Diluted 21,401 (19,553 ) (9,762 ) Weighted average number of common shares outstanding — Basic 53,978 51,344 47,277 Assumed exercise of stock options 1,198 — — Weighted average number of common shares outstanding — Diluted 55,176 51,344 47,277 Net income (loss) per common share — Diluted $ 0.39 $ (0.38 ) $ (0.21 ) Potentially dilutive securities excluded as anti-dilutive 6,383 5,395 185

Business Segment Information

Business Segment Information	12 Months Ended
	Mar. 31, 2016
Segment Reporting [Abstract]
Business Segment Information	21. BUSINESS SEGMENT 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. We calculate Segment Adjusted EBITDA as net income or loss before interest, income taxes, depreciation and amortization, stock-based compensation expense, non-cash Domestic Our Domestic segment manufactures and markets products throughout the United States. We maintain and serve these markets through 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 co-ops N-12 International Our International segment manufactures and markets products in certain 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 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 (ADS Mexicana) primarily serves the Mexican markets, while our South American Joint Venture (Tigre-ADS) N-12 The following table sets forth reportable segment information with respect to the amount of Net sales contributed by each class of similar products in each of the fiscal years ended March 31: (Amounts in thousands) 2016 2015 2014 Domestic Pipe $ 812,071 $ 771,214 $ 700,270 Allied Products 301,725 256,719 235,022 Total domestic 1,113,796 1,027,933 935,292 International Pipe 139,731 125,407 107,078 Allied Products 37,151 26,733 25,410 Total international 176,882 152,140 132,488 Total Net sales $ 1,290,678 $ 1,180,073 $ 1,067,780 The following sets forth certain additional financial information attributable to our reportable segments for the fiscal years ended March 31: (Amounts in thousands) 2016 2015 2014 Gross Profit Domestic $ 249,817 $ 179,470 $ 164,693 International 35,535 25,643 27,855 Total $ 285,352 $ 205,113 $ 192,548 Segment Adjusted EBITDA Domestic $ 162,875 $ 128,973 $ 132,504 International 24,465 14,904 18,829 Total $ 187,340 $ 143,877 $ 151,333 Interest expense Domestic $ 17,908 $ 19,308 $ 18,659 International 552 60 148 Total $ 18,460 $ 19,368 $ 18,807 Income tax expense Domestic $ 20,465 $ 5,351 $ 17,612 International 3,033 933 2,025 Total $ 23,498 $ 6,284 $ 19,637 Depreciation and amortization Domestic $ 62,625 $ 59,397 $ 57,834 International 8,384 6,075 5,840 Total $ 71,009 $ 65,472 $ 63,674 Equity in net (loss) income of unconsolidated affiliates Domestic $ 181 $ 289 $ 417 International (5,415 ) (2,624 ) (3,503 ) Total $ (5,234 ) $ (2,335 ) $ (3,086 ) Capital expenditures Domestic $ 37,242 $ 29,345 $ 37,095 International 7,700 2,735 3,838 Total $ 44,942 $ 32,080 $ 40,933 The following sets forth certain additional financial information attributable to our reportable segments as of March 31: 2016 2015 2014 Investments in unconsolidated affiliates Domestic $ 2,932 $ 7,957 $ 5,202 International 10,256 17,081 18,422 Total $ 13,188 $ 25,038 $ 23,624 Total identifiable assets Domestic $ 952,417 $ 938,996 $ 883,327 International 147,814 168,320 113,114 Eliminations (59,784 ) (69,192 ) (13,308 ) Total $ 1,040,447 $ 1,038,124 $ 983,133 Reconciliation of Segment Adjusted EBITDA to Net income 2016 2015 2014 (Amounts in thousands) Domestic International Domestic International Domestic International Net income (loss) $ 24,875 $ 5,692 $ (9,443 ) $ 5,747 $ 646 $ 7,328 Depreciation and amortization 62,625 8,384 59,397 6,075 57,834 5,840 Interest expense 17,908 552 19,308 60 18,659 148 Income tax expense 20,465 3,033 5,351 933 17,612 2,025 Segment EBITDA 125,873 17,661 74,613 12,815 94,751 15,341 Derivative fair value adjustments 2,139 24 7,774 (28 ) (53 ) — Foreign currency transaction losses (gains) — 697 5,636 (232 ) — 845 Loss (gain) on sale of business or disposal of assets 892 (80 ) 257 105 (2,817 ) (46 ) Unconsolidated affiliates interest, taxes, depreciation and amortization (a) 1,052 2,163 1,341 2,244 156 2,689 Special Dividend compensation — — — — 25,134 — Contingent consideration remeasurement 371 — 174 — 738 — Stock-based compensation expense (benefit) (5,868 ) — 24,247 — 4,338 — ESOP deferred stock-based compensation 10,250 — 12,144 — 7,891 — Expense (benefit) related to executive termination payments (294 ) — 328 — 737 — Expense related to executive stock repurchase agreements — — 1,011 — 69 — Loss related to BaySaver step acquisition 490 — — — — — Restatement costs (b) 27,970 — — — — — Impairment on investment in unconsolidated affiliate — 4,000 — — — — Transaction costs (c) — — 1,448 — 1,560 — Segment Adjusted EBITDA $ 162,875 $ 24,465 $ 128,973 $ 14,904 $ 132,504 $ 18,829 (a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture and our Tigre-ADS (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 year 2015 Form 10-K. (c) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our debt refinancing, the IPO and secondary public offering and asset acquisitions and dispositions. Geographic Sales and Assets Information Net sales are attributed to the geographic location based on the location of the customer. The table below represents the Net sales and long-lived asset information by geographic location for each of the fiscal years ended March 31: (Amounts in thousands) 2016 2015 2014 Net Sales North America $ 1,274,700 $ 1,161,909 $ 1,046,595 Other 15,978 18,164 21,185 Total $ 1,290,678 $ 1,180,073 $ 1,067,780 (Amounts in thousands) 2016 2015 Long-Lived Assets (a) North America $ 395,716 $ 385,878 Other 10,256 17,081 Total $ 405,972 $ 402,959 (a) For segment reporting purposes, long-lived assets include Investments in unconsolidated affiliates, Central parts and Property, plant and equipment.

Supplemental Disclosures of Cas

Supplemental Disclosures of Cash Flow Information	12 Months Ended
	Mar. 31, 2016
Supplemental Cash Flow Elements [Abstract]
Supplemental Disclosures of Cash Flow Information	22. SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION The increase (decrease) in cash due to the changes in working capital accounts for the fiscal years ended March 31, were as follows: (Amounts in thousands) 2016 2015 2014 Changes in working capital: Receivables $ (37,788 ) $ (10,351 ) $ (5,876 ) Inventories 28,330 (7,663 ) (37,595 ) Prepaid expenses and other current assets 646 1,953 (3,298 ) Accounts payable, accrued expenses, and other liabilities 10,156 (767 ) 10,371 Total $ 1,344 $ (16,828 ) $ (36,398 ) Supplemental disclosures of cash flow information for the fiscal years ended March 31 were as follows: (Amounts in thousands) 2016 2015 2014 Supplemental disclosures of cash flow information — cash paid during years: Interest $ 18,352 $ 18,709 $ 17,267 Income taxes 32,175 28,503 23,701 (Amounts in thousands) 2016 2015 2014 Supplemental schedule of noncash investing and financing activities: Redeemable convertible preferred stock dividend $ 132 $ 127 $ 118 Redemption of common stock to exercise stock options — 93 1,187 Receivable recorded to exercise stock options — — 76 Purchases of plant, property, and equipment included in accounts payable 1,165 124 682 Receivable recorded for sale of businesses 150 600 1,241 ESOP distributions in common stock 10,250 6,133 — Inventory contributed for Investment in unconsolidated affiliate — — 1,285 Assets acquired and obligation incurred under capital lease 34,207 24,047 24,902 Lease obligation retired upon disposition of leased assets 134 779 3,708 Reclassification of liability-classified stock options and restricted stock to equity 3,702 12,141 1,733 Reclassification of stock repurchase agreement liability and mezzanine equity to equity — 19,729 — Accretion of stock repurchase agreement mezzanine equity recorded to retained earnings — — 240 Reclassification of deferred public offering cost asset upon initial public offering — 456 —

Restatement of Previously Issue

Restatement of Previously Issued Financial Statements	12 Months Ended
	Mar. 31, 2016
Accounting Changes and Error Corrections [Abstract]
Restatement of Previously Issued Financial Statements	23. RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS Revisions Reported in the Fiscal Year 2016 Form 10-K Prior to the filing of the Original Form 10-K, Form 10-K. The column in the tables below labeled “Effect of Revision” reflects the impact of these adjustments. Stock-Based Compensation Restatement Subsequent to the issuance of the Original Form 10-K, Due to these errors, and based upon the recommendation of management, the Audit Committee of the Company’s Board of Directors (the “Audit Committee”) determined that the Company’s previously issued financial statements should no longer be relied upon. As a result, the Company has restated its consolidated financial statements for the fiscal years ended March 31, 2016, 2015 and 2014. The restatement also affects periods prior to fiscal year 2014, with the cumulative effect of the errors reflected as an adjustment to the fiscal year 2014 opening stockholders’ equity (deficit) balance. The column in the tables below labeled “Stock-Based Compensation Restatement” reflects the impact of these adjustments. The column in the tables below labeled “As Previously Reported” for fiscal years 2015 and 2014 reflects the financial information reported as part of the Fiscal 2015 Form 10-K, 10-K. The following sections provide additional information relating to the accounting adjustments that were made to the Company’s historical consolidated financial statements. For the fiscal years ended March 31, 2016, 2015 and 2014, the impact of the adjustments on the consolidated statements of comprehensive income (loss) was limited to the change in net income (loss). Accounting Adjustments – Stock-Based Compensation The Company has several programs for stock-based payments to employees, including stock options and restricted stock awards. Historically, the Company has classified stock-based awards as equity awards, and recorded the associated compensation expense based on the award’s grant date fair value. Based upon an internal review of our stock-based award agreements and related administrative procedures, the Company concluded that these awards should have been accounted for as liability-classified instead of equity-classified. Specifically, the Company determined that certain tax withholding provisions were added to stock option agreements beginning in fiscal 2009 that permit the employee to satisfy the tax liability associated with the exercise of the stock options through the withholding of shares that exceeds the minimum tax withholding required by law. In addition, prior to the Company’s initial public offering in fiscal 2015, the Company had periodically repurchased shares within six months of the exercise date with respect to stock option exercises and within six months of the vesting date with respect to restricted stock. As such, the Company has concluded that for all periods presented that it should account for its stock options as liability-classified awards for purposes of calculating stock-based compensation expense, and restricted stock granted to employees should be accounted for as liability-classified awards prior to the Company’s initial public offering in fiscal 2015. The errors in stock-based compensation award classification have been corrected in the restated consolidated financial statements, whereby the fair value of the liability-classified awards has been remeasured at each relevant reporting date with the corresponding impact of the remeasurement resulting in an increase or a decrease in the amount of stock-based compensation expense included in General and administrative expenses, Selling expenses and Cost of goods sold in the Consolidated Statements of Operations. In addition, the carrying value of all liability-classified awards has been reclassified from Paid-in Accounting Adjustments – Executive Stock Repurchase Agreements In fiscal 2007, the Company entered into stock repurchase agreements with certain executives, whereby the Company was required to repurchase shares of the Company’s common stock held by the executive at the current fair market value upon the executive’s death or certain events of termination, as defined. The amount of shares required to be repurchased by the Company from the executive and which the executive or the executive’s heir or estate was obligated to sell to the Company, was limited to the anticipated proceeds from life insurance policies held by the Company (referred to as a mandatorily redeemable obligation). In the case where shares were not repurchased due to the fair value of the shares exceeding the life insurance proceeds, the executive or the executive’s heir or estate had a put right up to a set dollar amount allowing the common stock to be put to the Company at the current fair market value (referred to as an executive’s put right). The stock repurchase agreements included termination clauses such that they would automatically terminate if a change in control event or an IPO occurred prior to the executive’s death. While the Company did not historically take into account the impact of these stock repurchase agreements on the accounting for the shares subject to the stock repurchase agreements, the Company has now determined that it is necessary to account for the contingent obligation to repurchase those shares. As such, the errors in measurement and classification of these amounts have been corrected in the restated consolidated financial statements. Specifically, prior to the termination of the stock repurchase agreements upon the IPO in July 2014, the Company has reclassified all shares subject to the mandatorily redeemable obligation as liabilities and all shares subject to an executive’s put rights as Redeemable common stock in mezzanine equity. For those shares classified as liabilities, changes in the fair value of the shares have been recognized as compensation expense included in General and administrative expenses in the Consolidated Statements of Operations, and dividends paid on those awards have been reclassified from Retained earnings (deficit) to stock-based compensation expense. For those shares classified as Redeemable common stock, changes in the fair value of the shares were recorded as adjustments to Retained earnings (deficit) and Paid-in capital. After the termination of the stock repurchase agreements upon the IPO in July 2014, the Company has reclassified the carrying amount of the shares to Paid-in Accounting Adjustments – Executive Termination Payments ADS has employment agreements with certain executives that include potential payments to be made to those executives upon termination. The terms of the termination payments vary by executive, but are generally based on current base salary and bonus levels at the time of termination. The contractual termination payments vest upon either (1) certain contingent occurrences terminating employment such as death, disability, layoff, the executive voluntarily quitting due to a breach of covenants by the Company or for other “good reason” or (2) the executive reaching a certain age while still working for the Company, as defined in the individual employee agreement. While the Company did not historically accrue a liability in advance for these executive termination payments, the Company has now determined that it is necessary to account for the contingent obligation to make these payments. As such, the associated errors have been corrected in the restated consolidated financial statements. Specifically, the Company has accrued a liability from the effective date of the executive’s employment agreement to the date the executive reaches the required retirement age while working for the Company, which is considered the service period for this obligation. The liability is estimated based on each executive’s current base salary and bonus levels. The associated expense has been recognized as compensation expense included in General and administrative expenses in the Consolidated Statements of Operations. Accounting Adjustments – Income Taxes The Company recorded adjustments to income taxes to reflect the impact of the restatement adjustments. Impact on Consolidated Statements of Operations The effect of the revision and the restatement described above on the Company’s previously reported Consolidated Statements of Operations for the fiscal years ended March 31, 2016, 2015 and 2014 is as follows: For the Year Ended March 31, 2016 (Amounts in thousands, except As Previously Effect of Revision Stock-Based As Restated Net sales $ 1,290,678 $ — $ — $ 1,290,678 Cost of goods sold 1,005,626 — (300 ) (a) 1,005,326 Gross profit 285,052 — 300 285,352 Operating expenses: — Selling 88,978 — (500 ) (a) 88,478 General and administrative 101,445 — (8,941 ) (b) 92,504 Loss on disposal of assets or businesses 812 — — 812 Intangible amortization 9,224 — — 9,224 Income from operations 84,593 — 9,741 94,334 Other expense: — Interest expense 18,460 — — 18,460 Derivative losses and other expense, net 16,575 — — 16,575 Income before income taxes 49,558 — 9,741 59,299 Income tax expense 20,855 — 2,643 23,498 Equity in net loss of unconsolidated affiliates 5,234 — — 5,234 Net income 23,469 — 7,098 30,567 Less net income attributable to noncontrolling interest 5,515 — — 5,515 Net income attributable to ADS 17,954 — 7,098 25,052 Accretion of Redeemable noncontrolling interest (932 ) — — (932 ) Dividends to redeemable convertible preferred stockholders (1,425 ) — — (1,425 ) Dividends paid to unvested restricted stockholders (24 ) — — (24 ) Net income available to common stockholders and participating securities 15,573 — 7,098 22,671 Undistributed income allocated to participating securities (511 ) — (759 ) (1,270 ) Net income available to common stockholders $ 15,062 $ — $ 6,339 $ 21,401 Weighted average common shares outstanding: Basic 53,978 — — 53,978 Diluted 55,052 — 124 55,176 Net income per share: Basic $ 0.28 — $ 0.12 $ 0.40 Diluted $ 0.27 — $ 0.12 $ 0.39 Cash dividends declared per share $ 0.20 $ 0.20 (a) This entire amount relates to the adjustments for stock-based compensation. (b) This amount consists of ($8,647) and ($294) related to the adjustments for stock-based compensation and the executive termination payments, respectively. For the Year Ended March 31, 2015 (Amounts in thousands, except As Previously Effect of Revision Stock-Based As Restated Net sales $ 1,180,073 $ — $ — $ 1,180,073 Cost of goods sold 973,960 (100 ) 1,100 (a) 974,960 Gross profit 206,113 100 (1,100 ) 205,113 Operating expenses: Selling 78,981 — 1,500 (a) 80,481 General and administrative 58,749 — 17,106 (b) 75,855 Gain on disposal of assets or businesses 362 — — 362 Intangible amortization 9,754 — — 9,754 Income from operations 58,267 100 (19,706 ) 38,661 Other expense: Interest expense 19,368 — — 19,368 Derivative losses and other expense, net 14,370 — — 14,370 Income before income taxes 24,529 100 (19,706 ) 4,923 Income tax expense 9,443 40 (3,199 ) 6,284 Equity in net loss of unconsolidated affiliates 2,335 — — 2,335 Net income (loss) 12,751 60 (16,507 ) (3,696 ) Less net income attributable to noncontrolling interest 4,131 — — 4,131 Net income (loss) attributable to ADS 8,620 60 (16,507 ) (7,827 ) Change in fair value of redeemable convertible preferred stock (11,054 ) — — (11,054 ) Dividends to redeemable convertible preferred stockholders (661 ) — — (661 ) Dividends paid to unvested restricted stockholders (11 ) — — (11 ) Net loss available to common stockholders and participating securities (3,106 ) 60 (16,507 ) (19,553 ) Net loss available to common stockholders $ (3,106 ) $ 60 $ (16,507 ) $ (19,553 ) Weighted average common shares outstanding: Basic 51,344 — — 51,344 Diluted 51,344 — — 51,344 Net loss per share: Basic $ (0.06 ) $ (0.00 ) $ (0.32 ) $ (0.38 ) Diluted $ (0.06 ) $ (0.00 ) $ (0.32 ) $ (0.38 ) Cash dividends declared per share $ 0.08 $ 0.08 (a) This entire amount relates to the adjustments for stock-based compensation. (b) This amount consists $15,767, $1,011 and $328 related to the adjustments for stock-based compensation, the executive stock repurchase agreements and the executive termination payments, respectively. For the Year Ended March 31, 2014 (Amounts in thousands, except As Previously Effect of Revision Stock-Based As Restated Net sales $ 1,067,780 $ — $ — $ 1,067,780 Cost of goods sold 873,810 1,422 — 875,232 Gross profit 193,970 (1,422 ) — 192,548 Operating expenses: Selling 74,042 — — 74,042 General and administrative 59,761 — 3,136 (a) 62,897 Gain on disposal of assets or businesses (2,863 ) — — (2,863 ) Intangible amortization 10,145 — — 10,145 Income from operations 52,885 (1,422 ) (3,136 ) 48,327 Other expense: Interest expense 18,807 — — 18,807 Derivative losses (gains) and other expense (income), net (1,177 ) — — (1,177 ) Income before income taxes 35,255 (1,422 ) (3,136 ) 30,697 Income tax expense 19,949 (527 ) 215 19,637 Equity in net loss of unconsolidated affiliates 3,086 — — 3,086 Net income 12,220 (895 ) (3,351 ) 7,974 Less net income attributable to noncontrolling interest 3,593 — — 3,593 Net income attributable to ADS 8,627 (895 ) (3,351 ) 4,381 Change in fair value of redeemable convertible preferred stock (3,979 ) — — (3,979 ) Dividends to redeemable convertible preferred stockholders (10,139 ) — — (10,139 ) Dividends paid to unvested restricted stockholders (418 ) — 393 (25 ) Net loss available to common stockholders and participating securities (5,909 ) (895 ) (2,958 ) (9,762 ) Net loss available to common stockholders $ (5,909 ) $ (895 ) $ (2,958 ) $ (9,762 ) Weighted average common shares outstanding: Basic 47,277 — — 47,277 Diluted 47,277 — — 47,277 Net loss per share: Basic $ (0.12 ) $ (0.02 ) $ (0.07 ) $ (0.21 ) Diluted $ (0.12 ) $ (0.02 ) $ (0.07 ) $ (0.21 ) Cash dividends declared per share $ 1.68 $ 1.68 (a) This amount consists of ($180), $2,579 and $737 related to the adjustments for stock-based compensation, the executive stock repurchase agreements and the executive termination payments, respectively. Impact on Consolidated Balance Sheets The effect of the revision and the restatement described above on the Company’s previously reported Consolidated Balance Sheets as of March 31, 2016 and 2015 is as follows: March 31, 2016 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Restated ASSETS Cash $ 6,555 $ — $ — $ 6,555 Receivables, net 186,883 — — 186,883 Inventories 230,466 — — 230,466 Deferred income taxes and other current assets 12,859 — 2,799 15,658 Property, plant and equipment, net 391,744 — — 391,744 Goodwill 100,885 — — 100,885 Intangible assets, net 59,869 — — 59,869 Other assets 48,387 — — 48,387 Total assets $ 1,037,648 $ — $ 2,799 $ 1,040,447 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY Current maturities of debt obligations $ 35,870 $ — $ — $ 35,870 Current maturities of capital lease obligations 19,231 — — 19,231 Accounts payable 119,606 — — 119,606 Current portion of liability-classified stock-based awards — — 10,118 10,118 Other accrued liabilities 65,099 — — 65,099 Accrued income taxes 1,822 — 438 2,260 Long-term debt obligation 315,345 — — 315,345 Long-term capital lease obligation 56,809 — — 56,809 Deferred tax liabilities 63,683 — 269 63,952 Other liabilities 30,803 — 7,118 37,921 Total liabilities 708,268 — 17,943 726,211 Mezzanine equity 111,747 — — 111,747 Common stock 12,393 — — 12,393 Paid-in 715,859 — 23,238 739,097 Common stock in treasury, at cost (440,995 ) — — (440,995 ) Accumulated other comprehensive loss (21,261 ) — — (21,261 ) Retained earnings (deficit) (63,396 ) — (38,382 ) (101,778 ) Noncontrolling interest in subsidiaries 15,033 — — 15,033 Total liabilities, mezzanine equity and stockholders’ equity $ 1,037,648 $ — $ 2,799 $ 1,040,447 March 31, 2015 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Restated ASSETS Cash $ 3,623 $ — $ — $ 3,623 Receivables, net 154,294 — — 154,294 March 31, 2015 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Restated Inventories 269,842 (9,292 ) — 260,550 Deferred income taxes and other current assets 18,972 3,532 3,439 25,943 Property, plant and equipment, net 377,067 (1,254 ) — 375,813 Goodwill 98,679 — — 98,679 Intangible assets, net 58,055 — — 58,055 Other assets 61,167 — — 61,167 Total assets $ 1,041,699 $ (7,014 ) $ 3,439 $ 1,038,124 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY Current maturities of debt obligations $ 9,580 $ — $ — $ 9,580 Current maturities of capital lease obligations 15,731 — — 15,731 Accounts payable 111,893 — — 111,893 Current portion of liability-classified stock-based awards — — 17,611 17,611 Other accrued liabilities 54,349 — — 54,349 Accrued income taxes 6,041 11 247 6,299 Long-term debt obligation 390,315 — — 390,315 Long-term capital lease obligation 45,503 — — 45,503 Deferred tax liabilities 65,088 (492 ) (1,764 ) 62,832 Other liabilities 28,602 (44 ) 10,307 38,865 Total liabilities 727,102 (525 ) 26,401 752,978 Mezzanine equity 108,021 — — 108,021 Common stock 12,393 — — 12,393 Paid-in 700,977 — 22,518 723,495 Common stock in treasury, at cost (445,065 ) — — (445,065 ) Accumulated other comprehensive loss (15,521 ) — — (15,521 ) Retained earnings (deficit) (62,621 ) (6,489 ) (45,480 ) (114,590 ) Noncontrolling interest in subsidiaries 16,413 — — 16,413 Total liabilities, mezzanine equity and stockholders’ equity $ 1,041,699 $ (7,014 ) $ 3,439 $ 1,038,124 Cumulative Effect of Prior Period Adjustments The following table presents the impact of the revision and the restatement described above to the Company’s beginning stockholders’ equity (deficit) balances, cumulatively to reflect adjustments booked to all periods prior to April 1, 2013: (Amounts in thousands) Common Paid in Common Accumulated Retained Total ADS Non-controlling Total Stockholders’ equity (deficit), March 31, 2013 (as previously reported) $ 11,957 $ 40,026 $ (448,571 ) $ (1,081 ) $ 79,202 $ (318,467 ) $ 18,544 $ (299,923 ) Adjustments from: Effect of Revision — — — — (5,654 ) (5,654 ) — (5,654 ) Stock-Based Compensation Restatement — (155 ) — — (26,638 ) (26,793 ) — (26,793 ) Total adjustments — (155 ) — — (32,292 ) (32,447 ) — (32,447 ) Stockholders’ equity (deficit), March 31, 2013 (As Restated) $ 11,957 $ 39,871 $ (448,571 ) $ (1,081 ) $ 46,910 $ (350,914 ) $ 18,544 $ (332,370 ) Impact on Consolidated Statements of Cash Flows The effect of the revision and the restatement on the Company’s previously reported Consolidated Statements of Cash Flows for the fiscal years ended March 31, 2016, 2015 and 2014 is as follows: For the Year Ended March 31, 2016 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Cash Flows from Operating Activities Net income $ 23,469 $ — $ 7,098 $ 30,567 ESOP, stock repurchase agreement and stock-based compensation 13,829 — (9,447 ) 4,382 All other adjustments to reconcile net income to net cash provided by operating activities 98,044 — 2,349 100,393 Net cash provided by operating activities 135,342 — — 135,342 Cash Flows from Investing Activities Net cash used in investing activities (49,018 ) — — (49,018 ) Cash Flows from Financing Activities Net cash used in financing activities (82,964 ) — — (82,964 ) Effect of exchange rate changes on cash (428 ) — — (428 ) Net change in cash 2,932 — — 2,932 Cash at beginning of year 3,623 — — 3,623 Cash at end of year $ 6,555 $ — $ — $ 6,555 For the Year Ended March 31, 2015 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Cash Flows from Operating Activities Net income $ 12,751 $ 60 $ (16,507 ) $ (3,696 ) ESOP, stock repurchase agreement and stock-based compensation 18,024 — 19,378 37,402 All other adjustments to reconcile net income to net cash provided by operating activities 43,604 (60 ) (2,871 ) 40,673 Net cash provided by operating activities 74,379 — — 74,379 Cash Flows from Investing Activities Net cash used in investing activities (76,093 ) — — (76,093 ) Cash Flows from Financing Activities Net cash provided by financing activities 1,791 — — 1,791 Effect of exchange rate changes on cash (385 ) — — (385 ) Net change in cash (308 ) — — (308 ) Cash at beginning of year 3,931 — — 3,931 Cash at end of year $ 3,623 $ — $ — $ 3,623 For the Year Ended March 31, 2014 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Cash Flows from Operating Activities Net income $ 12,220 $ (895 ) $ (3,351 ) $ 7,974 ESOP, stock repurchase agreement and stock-based compensation 35,033 — 2,399 37,432 All other adjustments to reconcile net income to net cash provided by operating activities 25,157 895 952 27,004 Net cash provided by operating activities 72,410 — — 72,410 Cash Flows from Investing Activities Net cash used in investing activities (38,712 ) — — (38,712 ) Cash Flows from Financing Activities Net cash used in financing activities (31,109 ) — — (31,109 ) Effect of exchange rate changes on cash (19 ) — — (19 ) Net change in cash 2,570 — — 2,570 Cash at beginning of year 1,361 — — 1,361 Cash at end of year $ 3,931 $ — $ — $ 3,931 Additional Subsequent Events Subsequent Events Related to the Bank Term Loans and Senior Notes In October 2016, the Company obtained additional consents from the lenders of the Bank Term Loans and Senior Notes. These consents had the effect of extending the time for delivery of our first quarter fiscal 2017 quarterly financial information to November 30, 2016 and our second quarter fiscal 2017 quarterly financial information to December 31, 2016, whereby an event of default was waived as long as those items are delivered within a 30 day grace period after those dates. In addition, the consents also permitted the Company’s payment of a quarterly dividend of $0.06 per share on common shares in December 2016, as well as the annual dividend of $0.0195 per share to be paid on shares of preferred stock in March 2017. In December 2016, the Company obtained additional consents from the lenders of the Bank Term Loans and Senior Notes. These consents had the effect of extending the time for delivery of our first quarter fiscal 2017 quarterly financial information to January 31, 2017. Subsequent Event Related to the ADS Mexicana Revolving Credit Facility During the period from November 3, 2014 to November 11, 2015, our joint venture, ADS Mexicana, made intercompany revolving loans to ADS, Inc. The maximum aggregate amount of the intercompany loans outstanding at any time was $6,900. Since November 11, 2015, there have been no other intercompany loans made, and no balance remains outstanding. According to the terms of the ADS Mexicana Revolving Credit Facility, ADS Mexicana was not permitted to make such loans, triggering an Event of Default. ADS Mexicana had an obligation to report such Event of Default and the Company had not previously disclosed the related restriction on its ability to enter into such loans. These events together were characterized as a Specified Default. On December 13, 2016, ADS Mexicana obtained a covenant waiver on the ADS Mexicana Revolving Credit Facility for the Specified Default from the lenders.

Quarterly Financial Information

Quarterly Financial Information (Unaudited)	12 Months Ended
	Mar. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	24. QUARTERLY FINANCIAL INFORMATION (UNAUDITED) The following tables set forth certain historical unaudited consolidated condensed quarterly financial information for each of the quarters during the years ended March 31, 2016 and 2015. This unaudited information, revised and restated to reflect the effect of the adjustments more fully described in Note 23. Restatement of Previously Issued Financial Statements, has been prepared on a basis consistent with our annual financial statements, and includes all adjustments necessary for the fair presentation of the unaudited quarterly data. The results of operations for any quarter are not necessarily indicative of results that we may achieve for any subsequent period. The column in the tables below labeled “As Reported” reflects the quarterly financial information for fiscal year 2015 reported as part of the Fiscal 2015 Form 10-K 10-K. The quarterly results are affected by the seasonal nature of our business with the first two quarters of each year generally having higher revenue and gross profit. During the second quarter of fiscal 2016, we completed the step acquisition of BaySaver and began to consolidate the BaySaver operations as described in Note 3. Acquisitions. As such, BaySaver revenue and gross profit are included in the quarterly information subsequent to the July 17, 2015 acquisition date. Additionally, during the fourth quarter of fiscal 2016, we recorded an impairment of our equity method investment in the South American Joint Venture as described in Note 10. Investment in Unconsolidated Affilates. Fiscal Year 2016 For the Three Months Ended March 31, 2016 December 31, 2015 September 30, 2015 June 30, 2015 (in thousands, except per share amounts) (As (As (As (As (As (As (As (As Net sales $ 245,398 $ 245,398 $ 312,827 $ 312,827 $ 383,329 $ 383,329 $ 349,124 $ 349,124 Gross profit 49,404 49,504 74,642 74,842 86,529 86,529 74,477 74,477 Net (loss) income (14,057 ) (11,085 ) 8,443 12,942 16,171 15,928 12,912 12,782 Net (loss) income attributable to ADS (15,091 ) (12,119 ) 8,632 13,131 12,589 12,346 11,824 11,694 Net (loss) income per share Basic $ (0.29 ) $ (0.24 ) $ 0.14 $ 0.21 $ 0.20 $ 0.20 $ 0.20 $ 0.19 Diluted $ (0.29 ) $ (0.24 ) $ 0.13 $ 0.21 $ 0.20 $ 0.19 $ 0.19 $ 0.19 Fiscal Year 2015 For the Three Months Ended March 31, 2015 December 31, 2014 September 30, 2014 June 30, 2014 (in thousands, except (As (As (As (As (As (As (As (As Net sales $ 207,054 $ 207,054 $ 279,871 $ 279,871 $ 366,714 $ 366,714 $ 326,434 $ 326,434 Gross profit 26,314 24,384 49,178 49,287 69,763 70,137 60,858 61,305 Net (loss) income (13,734 ) (24,909 ) (1,953 ) (3,269 ) 18,997 18,081 9,441 6,401 Net (loss) income attributable to ADS (13,465 ) (24,640 ) (3,325 ) (4,641 ) 16,844 15,928 8,566 5,526 Net (loss) income per share Basic $ (0.26 ) $ (0.47 ) $ (0.07 ) $ (0.09 ) $ 0.41 $ 0.40 $ (0.21 ) $ (0.27 ) Diluted $ (0.26 ) $ (0.47 ) $ (0.07 ) $ (0.09 ) $ 0.41 $ 0.40 $ (0.21 ) $ (0.27 )

Schedule II - Consolidated Valu

Schedule II - Consolidated Valuation and Qualifying Accounts	12 Months Ended
	Mar. 31, 2016
Valuation and Qualifying Accounts [Abstract]
Schedule II - Consolidated Valuation and Qualifying Accounts	SCHEDULE II ADVANCED DRAINAGE SYSTEMS, INC. AND SUBSIDIARIES Consolidated Valuation and Qualifying Accounts for the Fiscal Years Ended March 31, 2016, 2015 and 2014 (in thousands): Allowance for Doubtful Accounts: Year ended March 31, Balance at Charged Charged to (1) Deductions Balance at 2016 $ 5,423 $ 3,542 $ (81 ) $ (928 ) $ 7,956 2015 4,490 1,914 (291 ) (690 ) 5,423 2014 6,145 (71 ) (67 ) (1,517 ) 4,490 (1) Amounts represent the impact of foreign currency translation.

Background and Summary of Sig34

Background and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation Our consolidated financial statements include the Company, our wholly owned subsidiaries, our majority owned subsidiaries, 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 Consolidated Balance Sheets and the related equity in earnings from these investments are included in Equity in net loss of unconsolidated affiliates in our Consolidated Statements of Operations. All intercompany balances and transactions have been eliminated in consolidation.
Estimates	Estimates The preparation of our consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingencies and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Significant estimates include, but are not limited to, our allowance for doubtful accounts, valuation of inventory, useful lives of our property, plant and equipment and amortizing intangible assets, determination of the proper accounting for leases, valuation of equity method investments, goodwill, intangible assets and other long-lived assets for impairment, accounting for stock-based compensation and our ESOP, valuation of our Redeemable common stock and Redeemable convertible preferred stock, determination of allowances for sales returns, rebates and discounts, determination of the valuation allowance, if any, on deferred tax assets, and reserves for uncertain tax positions. Management’s estimates and assumptions are evaluated on an ongoing basis and are based on historical experience, current conditions and available information. Management believes the accounting estimates are appropriate and reasonably determined; however, due to the inherent uncertainties in making these estimates, actual results could differ from those estimates.
Receivables and Allowance for Doubtful Accounts	Receivables and Allowance for Doubtful Accounts Receivables include trade receivables, refundable income taxes and other miscellaneous receivables, net of an allowance for doubtful accounts. Receivables at March 31, 2016 and 2015 are as follows: (Amounts in thousands) 2016 2015 Trade receivables $ 158,664 $ 141,528 Refundable income taxes 19,783 1,895 Other miscellaneous receivables 8,436 10,871 Total Receivables $ 186,883 $ 154,294 Credit is extended to customers based on an evaluation of their financial condition and collateral is generally not required. The evaluation of the customer’s financial condition is performed to reduce the risk of loss. Accounts receivable are evaluated for collectability based on numerous factors, including the length of time individual receivables are past due, past transaction history with customers, their credit worthiness and the economic environment. This estimate is periodically adjusted when management becomes aware of a specific customer’s inability to meet its financial obligations (e.g., bankruptcy filing) or as a result of changes in historical collection patterns.
Inventories	Inventories Inventories are stated at the lower of cost or market value. The Company’s inventories are maintained on the first-in, first-out in-bound Market value of inventory is established based on the lower of cost or estimated net realizable value, with consideration given to deterioration, obsolescence, and other factors. The Company periodically evaluates the carrying value of inventories and adjustments are made whenever necessary to reduce the carrying value to net realizable value.
Property, Plant and Equipment and Depreciation Method	Property, Plant and Equipment and Depreciation Method Property, plant and equipment are recorded at cost less accumulated depreciation, with the exception of assets acquired through acquisitions, which are initially recorded at fair value. Equipment acquired under capital lease is recorded at the lower of fair market value or the present value of the future minimum lease payments. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings 40 — 45 Machinery and equipment 3 — 18 Leasehold improvements Shorter of useful Costs of additions and major improvements are capitalized, whereas maintenance and repairs that do not improve or extend the life of the asset are charged to expense as incurred. When assets are retired or disposed, the cost and related accumulated depreciation are removed from the asset accounts and any resulting gain or loss is reflected in Loss (gain) on disposal of assets or businesses in our Consolidated Statements of Operations. Construction in progress is also recorded at cost and includes capitalized interest, capitalized payroll costs and related costs such as taxes and other fringe benefits. Interest capitalized was $411, $518, and $611 during the fiscal years ended March 31, 2016, 2015, and 2014, respectively.
Goodwill	Goodwill The Company records acquisitions resulting in the consolidation of an enterprise using the acquisition method of accounting. Under this method, we record the assets acquired, including intangible assets that can be identified, and liabilities assumed based on their estimated fair values at the date of acquisition. The purchase price in excess of the fair value of the identifiable assets acquired and liabilities assumed is recorded as goodwill. Goodwill is reviewed annually for impairment as of March 31 or whenever events or changes in circumstances indicate the carrying value may be greater than fair value. The goodwill impairment analysis is comprised of two steps. The first step requires the comparison of the fair value of the applicable reporting unit to its respective carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that unit, goodwill is not considered impaired and the Company is not required to perform further testing. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the Company must perform the second step of the impairment test in order to determine the implied fair value of the reporting unit’s goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then we would record an impairment loss equal to the difference. With respect to this testing, a reporting unit is a component of the Company for which discrete financial information is available and regularly reviewed by management. Implied fair value of goodwill is determined by considering both the income and market approach. Determining the fair value of a reporting unit is judgmental in nature and involves the use of significant estimates and assumptions. These estimates and assumptions include revenue growth rates and operating margins used to calculate projected future cash flows, risk-adjusted discount rates, future economic and market conditions, and determination of appropriate market comparables. The fair value estimates are based on assumptions management believes to be reasonable, but are inherently uncertain. The Company did not incur any impairment charges for Goodwill in the fiscal years ended March 31, 2016, 2015, or 2014.
Intangible Assets - Definite-Lived	Intangible Assets — Definite-Lived Definite-lived intangible assets are amortized using the straight-line method over their estimated useful lives, and are tested for recoverability whenever events or changes in circumstances indicate that carrying amounts of the asset group may not be recoverable. Asset groups are established primarily by determining the lowest level of cash flows available. If the estimated undiscounted future cash flows are less than the carrying amounts of such assets, an impairment loss is recognized to the extent the fair value of the asset less any costs of disposition is less than the carrying amount of the asset. Determining the fair value of these assets is judgmental in nature and involves the use of significant estimates and assumptions.
Intangible Assets - Indefinite-Lived	Intangible Assets — Indefinite-Lived 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. Determining the fair value of these assets is judgmental in nature and involves the use of significant estimates and assumptions. The Company bases its fair value estimates on assumptions it believes to be reasonable, but that are inherently uncertain. To estimate the fair value of these indefinite-lived intangible assets, the Company uses an income approach, which utilizes a market derived rate of return to discount anticipated performance. An impairment loss is recognized when the estimated fair value of the intangible asset is less than the carrying value. The Company did not incur any impairment charges for Intangible assets in the fiscal years ended March 31, 2016, 2015 or 2014.
Other Assets	Other Assets Other assets include investments in unconsolidated affiliates accounted for under the equity method, cash surrender value of officer life insurance on key senior management executives, capitalized software development costs, deposits, deferred financing costs, Central parts, and other miscellaneous assets. The Company capitalizes development costs for internal use software. Capitalization of software development costs begins in the application development stage and ends when the asset is placed into service. The Company amortizes such costs using the straight-line method over estimated useful lives of 2 to 10 years, which is included in General and administrative expense, Selling expense or Cost of goods sold within our Consolidated Statements of Operations depending on the nature of the asset and its intended use. Amortization expense related to deferred financing costs is included in Interest expense within our Consolidated Statements of Operations. Central parts represent spare production equipment items which are used to replace worn or broken production equipment parts and help reduce the risk of prolonged equipment outages. The cost of Central parts is amortized on a straight line basis over estimated useful lives of 8 to 30 years. The Company evaluates its investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying amount might not be recoverable, and recognizes an impairment loss when a decline in value below carrying value is determined to be other-than-temporary. Under these circumstances, we would adjust the investment down to its estimated fair value, which then becomes its new carrying value. For the fiscal year ended March 31, 2016, the Company recorded an impairment charge of $4,000 related to its investment in the South American Joint Venture. See Note 10. Investment in Unconsolidated Affiliates. Other assets as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Investments in unconsolidated affiliates $ 13,188 $ 25,038 Cash surrender value of officer life insurance 10,739 9,953 Capitalized software development costs, net 7,264 7,276 Deposits 4,553 4,947 Deferred financing costs 3,131 4,543 Central parts 1,040 2,108 Other 8,472 7,302 Total other assets $ 48,387 $ 61,167 The following table sets forth amortization expense related to Other assets in each of the fiscal years ending March 31: (Amounts in thousands) 2016 2015 2014 Capitalized software development costs $ 3,872 $ 3,550 $ 3,270 Deferred financing costs 1,412 1,410 1,591 Central parts 362 55 43 Other 1,898 1,977 1,986
Leases	Leases Leases are reviewed for capital or operating classification at their inception. The Company uses the lower of the rate implicit in the lease or its incremental borrowing rate in the assessment of lease classification and assumes the initial lease term includes cancellable and renewal periods that are reasonably assured. For leases classified as capital leases at lease inception, we record a capital lease asset and lease financing obligation equal to the lesser of the present value of the minimum lease payments or the fair market value of the leased asset. The capital lease asset is recorded in Property, plant and equipment, net and amortized to its expected residual value at the end of the lease term using the straight-line method, and the lease financing obligation is amortized using the interest method over the lease term with the rental payments being allocated to principal and interest. For leases classified as operating leases, we record rent expense over the lease term using the straight-line method.
Foreign Currency Translation	Foreign Currency Translation Assets and liabilities of foreign subsidiaries with a functional currency other than the U.S. dollar are translated into U.S. dollars at the current rate of exchange on the last day of the reporting period. Revenues and expenses are translated at a monthly average exchange rate and equity transactions are translated using either the actual exchange rate on the day of the transaction or a monthly average historical exchange rate. For the fiscal years ended March 31, 2016, 2015 and 2014, the Company’s Accumulated other comprehensive loss (“AOCL”) consisted entirely of foreign currency translation gains and losses.
Net Sales	Net Sales The Company sells pipe products and related water management products. ADS ships products to customers predominantly by internal fleet and to a lesser extent by third-party carriers. The Company does not provide any additional revenue generating services after product delivery. Sales, net of sales tax and allowances for returns, rebates and discounts are recognized from product sales when persuasive evidence of an arrangement exists, delivery has occurred, the price to the buyer is fixed or determinable and collectability is reasonably assured. ADS does not ship an order until a customer purchase order or sales order has been received that includes the pricing and quantity of the products in the order, which establishes both persuasive evidence of an arrangement and that the price is fixed or determinable. Title to the products and risk of loss generally passes to the customer upon delivery. ADS performs credit check procedures on all new customers, establishes credit limits accordingly, and monitors the creditworthiness of existing customers, which is the basis for concluding that collectability is reasonably assured.
Shipping Costs	Shipping Costs Shipping costs are incurred to physically move our raw materials, tooling and products between manufacturing and distribution facilities and from our production or distribution facilities to our customers. Shipping costs for the fiscal years ended March 31, 2016, 2015 and 2014 were $120,487, $120,993, and $111,862, respectively, and are included in Cost of goods sold. In certain instances, we bill shipping costs to our customers. Shipping costs billed to customers were $7,026, $9,282, and $8,864 during 2016, 2015 and 2014, respectively, and are included in Net sales.
Stock-Based Compensation	Stock-Based Compensation See Note 18. Stock-Based Compensation for information about our stock-based compensation award programs and related accounting policies.
Advertising	Advertising We expense advertising costs as incurred. Advertising costs are recorded in Selling expenses in the Consolidated Statements of Operations. The total advertising costs were $3,150, $2,477, and $2,335 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively.
Self-Insurance	Self-Insurance The Company is self-insured for short term disability and medical coverage it provides for substantially all eligible employees. The Company is self-insured for medical claims up to the individual and aggregate stop-loss coverage limits. Management accrues for claims incurred but not reported based on our estimate of future claims related to events that occurred prior to our fiscal year end if we have not met the aggregate stop-loss coverage limit. Amounts contributed totaled $37,509, $32,002, and $29,484 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively, of which employees contributed $4,511, $4,067, and $4,032, respectively. ADS is also self-insured for various other general insurance programs to the extent of the applicable deductible limits on the Company’s insurance coverage. These programs include primarily automobile, general liability and employment practices coverage with deductibles ranging from $250 to $500 per occurrence or claim incurred. Amounts expensed during the period, including an estimate for claims incurred but not reported at year end, were $2,133, $569, and $447, for the years ended March 31, 2016, 2015 and 2014, respectively. ADS is also self-insured for workers’ compensation insurance with stop-loss coverage for claims that exceed $250 per incident up to the respective state statutory limits. Amounts expensed, including an estimate for claims incurred but not reported, were $3,873, $1,369, and $1,395 for the fiscal years ended March 31, 2016, 2015 and 2014, respectively.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized and represent the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. They are measured using the enacted tax rates expected to apply to taxable income in the years in which the related temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The deferred income tax provision represents the change during the reporting period in the deferred tax assets and deferred tax liabilities. Penalties and interest recorded on income taxes payable are recorded as part of Income tax expense. The Company determines whether an uncertain tax position of the Company is more likely than not to be sustained upon examination, including resolution of any related appeals or litigation process, based upon the technical merits of the position. For tax positions meeting the more likely than not threshold, the tax amount recognized in the financial statements is the largest amount of tax benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant taxing authority.
Fair Values	Fair Values The fair value framework requires the categorization of assets and liabilities into three levels based upon assumptions (inputs) used to price the assets or liabilities. Level 1 provides the most reliable measure of fair value, whereas Level 3 generally requires significant management judgment. The three levels are defined as follows: Level 1 — Unadjusted quoted prices in active markets for identical assets and liabilities. Level 2 — Observable inputs other than those included in Level 1. For example, quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets. Level 3 — Unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability. Our policy for determining when transfers between levels have occurred is to use the actual date of the event or change in circumstances that caused the transfer. The carrying amounts of current financial assets and liabilities approximate fair value because of the immediate or short-term maturity of these items, or in the case of derivative instruments, because they are recorded at fair value. The carrying and fair value of the Company’s Senior Notes (discussed in Note 12. Debt) were $100,000 and $101,175, respectively, as of March 31, 2016 and $100,000 and $103,590, respectively, at March 31, 2015. The fair value of the Senior Notes was determined based on a comparison of the interest rate and terms of such borrowings to the rates and terms of similar debt available for the period. Management believes the carrying amount on the remaining long-term debt, including the Bank Term Loans, is not materially different from its fair value as the interest rates and terms of the borrowings are similar to currently available borrowings. The categorization of the framework used to evaluate this debt is considered Level 2. See also Note 8. Fair Value Measurement to these financial statements.
Concentrations of Risk	Concentrations of Risk We have a large, active customer base of approximately twenty thousand customers with two customers each representing more than 10% of annual net sales. Such customers accounted for 21.1%, 20.3%, and 20.5% of fiscal year 2016, 2015 and 2014 net sales, respectively. Our customer base is diversified across the range of end markets that we serve. Financial instruments that potentially subject the Company to a concentration of credit risk consist principally of Receivables. The Company provides its products to customers based on an evaluation of the customers’ financial condition, generally without requiring collateral. Exposure to losses on Receivables is principally dependent on each customer’s financial condition. The Company performs ongoing credit evaluations of its customers. The Company monitors the exposure for credit losses and maintains allowances for anticipated losses. Concentrations of credit risk with respect to Receivables are limited due to the large number of customers comprising the Company’s customer base and their dispersion across many different geographies. One customer accounted for approximately 14% of our Receivables at March 31, 2016.
Derivatives	Derivatives We recognize derivative instruments as either assets or liabilities and measure those instruments at fair value. We use interest rate swaps, commodity options in the form of collars and swaps, and foreign currency forward contracts to manage our various exposures to interest rate, commodity price, and exchange rate fluctuations. These instruments do not qualify for hedge accounting treatment and therefore, gains and losses from contract settlements and changes in fair value of the derivative instruments are recognized in Derivative losses (gains) and other expense (income), net in the Consolidated Statements of Operations. Our policy is to present all derivative balances on a gross basis. The Company also has forward purchase agreements in place with certain resin suppliers for virgin polyethylene resin. The agreements specify a fixed amount of virgin resin material to be purchased at a fixed price for a given period of time in quantities the Company will use in the normal course of business, and therefore, are not subject to the guidance provided in ASC 810-15.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Revenue Recognition Consolidation Debt Issuance Costs line-of-credit line-of-credit Measurement of Inventory Deferred Tax Assets and Liabilities non-current, non-current Leases right-of-use Stock-Based Compensation paid-in net-share Measurement of Credit Losses Cash Flow Classification With the exception of pronouncements described above, there have been no new accounting pronouncements that have significance, or potential significance, to our consolidated financial statements.

Background and Summary of Sig35

Background and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Summary of Receivables	Receivables and Allowance for Doubtful Accounts Receivables include trade receivables, refundable income taxes and other miscellaneous receivables, net of an allowance for doubtful accounts. Receivables at March 31, 2016 and 2015 are as follows: (Amounts in thousands) 2016 2015 Trade receivables $ 158,664 $ 141,528 Refundable income taxes 19,783 1,895 Other miscellaneous receivables 8,436 10,871 Total Receivables $ 186,883 $ 154,294
Estimated Useful Lives of Related Assets	Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the related assets or the lease term, if shorter, as follows: Years Buildings 40 — 45 Machinery and equipment 3 — 18 Leasehold improvements Shorter of useful
Other Assets	Other assets as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Investments in unconsolidated affiliates $ 13,188 $ 25,038 Cash surrender value of officer life insurance 10,739 9,953 Capitalized software development costs, net 7,264 7,276 Deposits 4,553 4,947 Deferred financing costs 3,131 4,543 Central parts 1,040 2,108 Other 8,472 7,302 Total other assets $ 48,387 $ 61,167
Amortization Expense Related to Other Assets	The following table sets forth amortization expense related to Other assets in each of the fiscal years ending March 31: (Amounts in thousands) 2016 2015 2014 Capitalized software development costs $ 3,872 $ 3,550 $ 3,270 Deferred financing costs 1,412 1,410 1,591 Central parts 362 55 43 Other 1,898 1,977 1,986

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Mar. 31, 2016
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
BaySaver [Member]
Summary of Purchase Price Allocation	The 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
Effect of Acquisitions for Unaudited Pro Forma Consolidated Statements of Operations	This unaudited 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. Proforma (Amounts in thousands) 2016 2015 Net sales $ 1,294,277 $ 1,190,749 Net income (loss) attributable to ADS 25,090 (7,799 )
Ideal Pipe [Member]
Summary of Purchase Price Allocation	The purchase price allocation is as follows: (Amounts in thousands) Cash $ 7,443 Other current assets 9,036 Property, plant and equipment 27,258 Goodwill and intangible assets 18,890 Current liabilities (12,721 ) Non-current (6,078 ) Total purchase price $ 43,828
Effect of Acquisitions for Unaudited Pro Forma Consolidated Statements of Operations	This unaudited 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, 2013 or of future results. In addition, 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. Proforma (Amounts in thousands) 2015 2014 Net sales $ 1,217,431 $ 1,102,477 Net (loss) income attributable to ADS (6,118 ) 4,783

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant, Equipment	Property, plant and equipment, net as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Land, buildings and improvements $ 178,189 $ 177,073 Machinery and equipment 730,791 690,079 Construction in progress 14,902 5,991 Total cost 923,882 873,143 Less accumulated depreciation (532,138 ) (497,330 ) Property, plant and equipment, net $ 391,744 $ 375,813
Depreciation Expense Related to Property, Plant and Equipment	The following table sets forth depreciation expense related to Property, plant and equipment in each of the fiscal years ending March 31: (Amounts in thousands) 2016 2015 2014 Depreciation expense (inclusive of leased assets depreciation) $ 55,650 $ 50,136 $ 48,230

Leases (Tables)

Leases (Tables)	12 Months Ended
	Mar. 31, 2016
Leases [Abstract]
Summary of Leased Assets Included in Property, Plant and Equipment	Leased assets included in Property, plant and equipment consisted of the following: (Amounts in thousands) 2016 2015 Buildings and improvements $ 6,131 $ 7,163 Machinery and equipment 186,258 168,437 Total cost 192,389 175,600 Less accumulated depreciation (102,572 ) (102,263 ) Leased assets in Property, plant and equipment, net $ 89,817 $ 73,337
Schedule of Interest and Depreciation Expense Related to Capital Leases	The following sets forth the interest and depreciation expense related to capital leases recorded in each fiscal year ended March 31: (Amounts in thousands) 2016 2015 2014 Lease interest expense $ 3,367 $ 2,249 $ 2,666 Depreciation of leased assets 15,782 13,943 12,644
Schedule of Future Minimum Lease Payments under Capital Leases and Present Value	The following is a schedule by year of future minimum lease payments under capital leases and the present value of the net minimum lease payments as of March 31, 2016: (Amounts in thousands) 2017 $ 22,077 2018 19,065 2019 14,961 2020 11,603 2021 8,975 Thereafter 7,317 Total minimum lease payments (a) $ 83,998 Less: amount representing interest (b) 7,958 Present value of net minimum lease payments $ 76,040 Lease obligation — Current 19,231 Lease obligation — Long-term 56,809 Total lease obligation $ 76,040 (a) Excludes contingent rentals which may be paid. Contingent rentals amounted to $137 and $844 for the years ended March 31, 2016 and 2015, respectively. (b) Amount necessary to reduce minimum lease payments to present value calculated at the lower of the rate implicit in the lease or the Company’s incremental borrowing rate at lease inception.
Summary of Future Minimum Rental Commitments under Operating Leases	Future minimum rental commitments under operating leases as of March 31, 2016, are summarized below (amounts in thousands): 2017 2018 2019 2020 2021 Thereafter Future operating lease payments $ 2,224 $ 1,304 $ 898 $ 480 $ 258 $ 2,172

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Mar. 31, 2016
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Raw materials $ 46,604 $ 50,198 Finished goods 183,862 210,352 Total Inventories $ 230,466 $ 260,550

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill by Reportable Segment	The carrying amount of goodwill by reportable segment is as follows: (Amounts in thousands) Domestic International Total Balance at April 1, 2014 $ 87,507 $ 510 $ 88,017 Acquisition — 10,660 10,660 Currency translation — 2 2 Balance at March 31, 2015 $ 87,507 $ 11,172 $ 98,679 Acquisition 2,495 — 2,495 Currency translation — (289 ) (289 ) Balance at March 31, 2016 $ 90,002 $ 10,883 $ 100,885
Summary of Intangible Assets	Intangible assets as of March 31, 2016 and 2015 consisted of the following: 2016 2015 (Amounts in thousands) Gross Accumulated Net Gross Accumulated Net Definite-lived intangible assets Developed technology $ 44,579 $ (29,371 ) $ 15,208 $ 40,579 $ (26,405 ) $ 14,174 Customer relationships 40,732 (22,646 ) 18,086 43,167 (26,113 ) 17,054 Patents 7,048 (4,167 ) 2,881 6,547 (3,550 ) 2,997 Non-compete 1,242 (842 ) 400 1,365 (691 ) 674 Trademarks and tradenames 15,563 (4,195 ) 11,368 14,248 (3,051 ) 11,197 Total definite-lived intangible assets 109,164 (61,221 ) 47,943 105,906 (59,810 ) 46,096 Indefinite-lived intangible assets Trademarks 11,926 — 11,926 11,959 — 11,959 Total Intangible assets $ 121,090 $ (61,221 ) $ 59,869 $ 117,865 $ (59,810 ) $ 58,055
Weighted Average Amortization Period for Definite-Lived Intangible assets	The following table presents the weighted average amortization period for definite-lived intangible assets at March 31, 2016: Weighted Average Developed technology 11.0 Customer relationships 8.5 Patents 8.3 Non-compete 5.1 Trademarks and tradenames 13.5
Future Intangible Asset Amortization Expense	The following table presents the future intangible asset amortization expense based on existing intangible assets at March 31, 2016: Fiscal Year (Amounts in thousands) 2017 2018 2019 2020 2021 Thereafter Total Amortization expense $ 8,359 $ 7,826 $ 7,669 $ 5,984 $ 5,843 $ 12,262 $ 47,943

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	12 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Carried at Fair Value	Recurring Fair Value Measurements The assets, liabilities and mezzanine equity carried at fair value as of the fiscal years ended March 31 were as follows: March 31, 2016 (Amounts in thousands) Total Level 1 Level 2 Level 3 Assets: Derivative assets — diesel fuel contracts $ 11 $ — $ 11 $ — Total assets at fair value on a recurring basis $ 11 $ — $ 11 $ — Liabilities: Derivative liability — interest rate swaps $ 252 $ — $ 252 $ — Derivative liability — diesel fuel contracts 2,615 — 2,615 — Derivative liability — propylene swaps 8,027 — 8,027 — Contingent consideration for acquisitions 2,858 — — 2,858 Total liabilities at fair value on a recurring basis $ 13,752 $ — $ 10,894 $ 2,858 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 Quantitative Information about Level 3 Fair Value Measurements	Amounts recorded in the Consolidated Statements of Operations for Level 3 items amounted to $123 and $283 during 2016 and 2015, respectively. Quantitative Information about Level 3 Fair Value Measurements (Amounts in thousands) Liabilities & Mezzanine Equity Fair Value Valuation Unobservable Input Quantifiable Contingent consideration for acquisitions $2,858 Discounted cash flow Weighted Average Cost of Capital (“WACC”) (a) 9.75%-10 % Liabilities & Mezzanine Equity Fair Value Valuation Unobservable Input Quantifiable Contingent consideration for acquisitions $2,444 Discounted cash flow Weighted Average Cost of Capital (“WACC”) (a) 10 % (a) Represents discount rates or rates of return estimates and assumptions that we believe would be used by market participants when valuing these liabilities.
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 fiscal years ended March 31, 2016 and 2015 were as follows: Contingent Executive stock Redeemable Redeemable Deferred Total Balance at March 31, 2014 $ 2,898 $ 16,934 $ 549,359 $ 291,720 $ (197,888 ) $ 663,023 Allocation of ESOP shares to participants — — — — 4,391 4,391 Change in fair value 174 1,302 65,921 34,903 (23,849 ) 78,451 Payments of contingent consideration liability (628 ) — — — — (628 ) Transfer out of Level 3 — (18,236 ) (615,280 ) (326,623 ) 217,346 (742,793 ) Balance at March 31, 2015 $ 2,444 $ — $ — $ — $ — $ 2,444 Acquisition 750 — — — — 750 Change in fair value 371 — — — — 371 Payments of contingent consideration liability (707 ) — — — — (707 ) Balance at March 31, 2016 $ 2,858 $ — $ — $ — $ — $ 2,858

Investment in Affiliates (Table

Investment in Affiliates (Tables)	12 Months Ended
	Mar. 31, 2016
BaySaver [Member]
Assets and Liabilities of Joint Ventures	The table below includes the assets and liabilities of BaySaver that are consolidated as of March 31, 2016. The balances exclude intercompany transactions that are eliminated upon consolidation. (Amounts in thousands) 2016 Assets Current assets $ 3,121 Property, plant and equipment, net 140 Other noncurrent assets 12,668 Total assets $ 15,929 Liabilities Current liabilities $ 1,696 Total liabilities $ 1,696
Tigre-ADS USA [Member]
Summarized Financial Data of Joint Ventures	Summarized financial data as of the fiscal years ended March 31 for the Tigre-ADS (Amounts in thousands) 2016 2015 Investment in Tigre-ADS $ 2,932 $ 3,051 Receivable from Tigre-ADS 45 27
ADS Mexicana [Member]
Assets and Liabilities of Joint Ventures	The table below includes the assets and liabilities of ADS Mexicana that are consolidated as of March 31, 2016 and 2015. The balances exclude intercompany transactions that are eliminated upon consolidation. (Amounts in thousands) 2016 2015 Assets Current assets $ 27,650 $ 24,822 Property, plant and equipment, net 17,461 18,556 Other noncurrent assets 1,742 2,523 Total assets $ 46,853 $ 45,901 Liabilities Current liabilities $ 10,769 $ 11,134 Noncurrent liabilities 5,390 5,259 Total liabilities $ 16,159 $ 16,393
South American Joint Venture [Member]
Summarized Financial Data of Joint Ventures	Summarized financial data as of the fiscal years ended March 31 for the South American Joint Venture is as follows: (Amounts in thousands) 2016 2015 Investment in South American Joint Venture (a) $ 10,256 $ 17,081 Receivable from South American Joint Venture 3,201 5,607 (a) Includes capital contributions of $4,000 during the fiscal year ended March 31, 2015.
BaySaver [Member]
Summarized Financial Data of Joint Ventures	Summarized financial data for the fiscal year ended March 31, 2015 for the BaySaver joint venture is as follows: (Amounts in thousands) 2015 Investment in BaySaver $ 4,906 Receivable from BaySaver 59

Debt (Tables)

Debt (Tables)	12 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Long-Term Debt	Long-term debt as of the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 Bank Term Loans Revolving Credit Facility — ADS $ 166,000 $ 205,100 Revolving Credit Facility — ADS Mexicana — — Term Note 82,500 91,250 Senior Notes payable 100,000 100,000 Industrial revenue bonds 2,715 3,545 ADS Mexicana Scotia bank revolving credit facility — — Total 351,215 399,895 Current maturities (35,870 ) (9,580 ) Long-term debt obligation $ 315,345 $ 390,315
Maturities of Long-term Debt (Excluding Interest)	Maturities of long-term debt (excluding interest) as of March 31, 2016 are summarized below: Fiscal Years Ending March 31, (Amounts in thousands) 2017 2018 2019 2020 2021 Thereafter Total Principal maturities $ 35,870 $ 35,905 $ 254,440 $ 25,000 $ — $ — $ 351,215

Derivative Transactions (Tables

Derivative Transactions (Tables)	12 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Fair Values for Various Derivatives	A summary of the fair values for the various derivatives at March 31, 2016 and 2015 is presented below: 2016 Assets Liabilities (Amounts in thousands) Receivables Other assets Other accrued Other Interest rate swaps $ — $ — $ (252 ) $ — Foreign exchange forward contracts — — — — Diesel fuel option collars and swaps — 11 (2,609 ) (6 ) Propylene swaps — — (8,027 ) — 2015 Assets Liabilities (Amounts in thousands) Receivables Other assets 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 )
Schedule of Cash Settlements and Losses and (Gains) on Mark-to-Market Adjustments for Changes in Fair Value of Derivative Contracts	The Company recorded losses and (gains) on mark-to-market Unrealized Mark to Market Losses (Gains) (Amounts in thousands) 2016 2015 2014 Interest rate swaps $ (513 ) $ (236 ) $ (81 ) Foreign exchange forward contracts 28 (28 ) — Diesel fuel option collars (237 ) 2,841 55 Propylene swaps 2,885 5,169 (27 ) $ 2,163 $ 7,746 $ (53 ) Realized Losses (Gains) (Amounts in thousands) 2016 2015 2014 Foreign exchange forward contracts $ (150 ) $ 5,636 $ — Diesel fuel option collars 3,142 736 — Propylene swaps 11,742 1,333 (84 ) $ 14,734 $ 7,705 $ (84 ) Total realized and unrealized losses (gains) included in Derivative losses (gains) and other expense (income), net (1) $ 16,897 $ 15,451 $ (137 ) (1) The total balance in Derivative losses (gains) and other expense (income), net in the Consolidated Statements of Operations also includes other income items of ($322), ($1,081), and ($1,040) at March 31, 2016, 2015 and 2014, respectively.

Mezzanine Equity (Tables)

Mezzanine Equity (Tables)	12 Months Ended
	Mar. 31, 2016
Text Block [Abstract]
Schedule of Redeemable Preferred Stock	(Amounts in thousands) 2016 2015 Quarterly cash dividends $ 1,272 $ 507 Annual cash dividends 21 27 Total cash dividends $ 1,293 $ 534 Annual stock dividend 132 127 Annual cash dividend 21 27 Total ESOP required dividends $ 153 $ 154 Allocated shares 7,831 7,914 Required dividend per share 0.0195 0.0195 Required dividends $ 153 $ 154

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Mar. 31, 2016
Stock-based Compensation Expense (Benefit) Recognized in Condensed Consolidated Statements of Operations	The Company recognized stock-based compensation expense (benefit) in the following line items on the Consolidated Statements of Operations for the fiscal years ended March 31, 2016, 2015 and 2014: (Amounts in thousands) 2016 2015 2014 Component of income before income taxes: Cost of goods sold $ (300 ) $ 1,100 $ — Selling expenses (500 ) 1,500 — General and administrative expenses (5,068 ) 21,647 4,338 Total stock-based compensation expense (5,868 ) 24,247 4,338
Schedule of Estimate Fair Value of Stock Options Granted	We estimate the fair value of stock options using a Black-Scholes option-pricing model, with assumptions as summarized in the following table. For the periods prior to our IPO in fiscal 2015, the price of our common stock, as a private company, was based on an estimate of its fair value. 2016 2015 2014 Common stock price $18.34 - $33.03 $14.33 - $29.94 $13.64 - $14.33 Expected stock price volatility 31.1% - 39.3% 28.2% - 51.0% 26.7% - 53.7% Risk-free interest rate 0.5% - 1.5% 0.1% - 1.8% <0.1% - 2.4% Weighted-average expected option life (years) 0.5 – 6.2 0.5 - 7.2 0.1 – 7.2 Dividend yield 0.9% 0.5% 0.8%
Summary of Unvested Restricted Stock Grants	The information about the unvested restricted stock grants as of March 31, 2016 is as follows: Number Weighted Unvested at beginning of year 183 $ 12.65 Granted — — Vested (69 ) 12.20 Forfeited (2 ) 12.12 Unvested at end of year 112 $ 12.97
2000 Stock Option Plan [Member]
Schedule of Stock Option Activity	The stock option activity for the fiscal year ended March 31, 2016 is summarized as follows: Number Weighted Weighted Outstanding at beginning of year 746 $ 10.75 4.1 Granted — — — Exercised (215 ) 8.31 — Forfeited (16 ) 8.81 — Outstanding at end of year 515 11.82 4.2 Vested at end of year 439 11.14 3.5 Unvested at end of year 76 15.74 8.4 Fair value of options granted during the year $ —
Schedule of Unvested Stock Option Grants	The following table summarizes information about the unvested stock option grants as of the fiscal year ended March 31, 2016: Number of Weighted Unvested at beginning of year 78 $ 6.76 Granted — — Vested — — Forfeitures (2 ) 6.76 Unvested at end of year 76 $ 6.76
2013 Stock Option Plan [Member]
Schedule of Stock Option Activity	The stock option activity for the fiscal year ended March 31, 2016 is summarized as follows: Number Weighted Weighted Outstanding at beginning of year 1,911 $ 13.64 8.42 Issued — — — Exercised — — — Forfeited — — — Outstanding at end of year 1,911 13.64 7.42 Vested at end of year 816 13.64 7.42 Unvested at end of year 1,095 13.64 7.42 Fair value of options granted during the year $ —
Schedule of Unvested Stock Option Grants	The following table summarizes information about the unvested stock option grants as of the fiscal year ended March 31, 2016: Number of Weighted Unvested at beginning of year 1,503 $ 6.22 Vested (408 ) 6.22 Unvested at end of year 1,095 $ 6.22
Non Employee Director Compensation Plan [Member]
Schedule of Unvested Stock Option Grants	The following table summarizes information about the unvested Non-Employee 2016 2015 Number of Weighted Number of Weighted Unvested at beginning of year — $ — — $ — Granted — — 48 18.88 Vested — — (48 ) 18.88 Unvested at end of year — $ — — $ —

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Before Income Taxes of Domestic and Foreign Operations	The components of Income before income taxes for the fiscal years ended March 31 are as follows: (Amounts in thousands) 2016 2015 2014 United States $ 45,159 $ (4,381 ) $ 17,841 Foreign 14,140 9,304 12,856 Total $ 59,299 $ 4,923 $ 30,697
Schedule of Income Tax Expense	The components of Income tax expense for the fiscal years ended March 31 consisted of the following: (Amounts in thousands) 2016 2015 2014 Current: Federal $ 6,889 $ 20,592 $ 21,476 State and local 2,126 3,655 3,857 Foreign 3,791 831 1,126 Total current tax expense 12,806 25,078 26,459 Deferred: Federal 10,019 (16,270 ) (5,034 ) State and local 1,431 (2,626 ) (2,687 ) Foreign (758 ) 102 899 Total deferred tax expense (benefit) 10,692 (18,794 ) (6,822 ) Total Income tax expense $ 23,498 $ 6,284 $ 19,637
Effective Tax Rate Varied from Statutory Federal Income Tax Rate	For the fiscal years ended March 31, our effective tax rate varied from the statutory Federal income tax rate as a result of the following factors: 2016 2015 2014 Federal statutory rate 35.0 % 35.0 % 35.0 % Redeemable convertible preferred stock dividend (0.8 ) (3.8 ) (11.4 ) ESOP stock appreciation 5.8 82.3 8.4 ESOP compensation for Special Dividend on unallocated shares — 0.2 25.8 Effect of tax rate of foreign subsidiaries 0.8 (9.3 ) (3.0 ) State and local taxes—net of federal income tax benefit 4.3 19.7 1.2 Stock-based compensation (1.8 ) 64.7 1.2 Uncertain tax position change (3.6 ) (35.2 ) 6.8 Qualified production activity credit (0.9 ) (37.1 ) (5.6 ) Cumulative adjustments to deferred taxes — — (0.7 ) Executive repurchase agreement — 7.2 2.3 Other 0.8 3.9 4.0 Effective rate 39.6 % 127.6 % 64.0 %
Schedule of Deferred Tax Assets and Liabilities	The tax effect of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at March 31 were comprised of: (Amounts in thousands) 2016 2015 Deferred tax assets: State income taxes $ 1,927 $ 1,526 ESOP loan repayment 1,390 1,421 Receivable and other allowances 2,150 2,534 Derivatives 4,397 3,533 Inventory 1,433 11,271 Non-Qualified 4,309 6,478 Bonus accrual 1,852 1,736 Accrued rebates 1,378 1,378 Worker’s compensation 1,390 667 Contingent consideration 533 247 Purchase card accrual 232 232 Foreign NOL’s 1,507 1,504 Other 2,259 1,039 Total deferred tax assets 24,757 33,566 Less: valuation allowance (1,507 ) (1,504 ) Total net deferred tax assets 23,250 32,062 Deferred tax liabilities: Intangible assets 8,882 10,983 Property, plant and equipment 52,115 51,440 Leases 6,059 4,035 Capitalized software costs 2,935 3,159 Goodwill 3,643 2,735 Other 1,867 1,486 Total deferred tax liabilities 75,501 73,838 Net deferred tax liability $ 52,251 $ 41,776 Net deferred tax assets are included in Deferred income taxes and other current assets and Other assets on the Consolidated Balance Sheets. The related balances at March 31 were as follows: (Amounts in thousands) 2016 2015 Net current deferred tax assets $ 11,701 $ 21,056 Net non-current 63,952 62,832
Reconciliation of Beginning and Ending Balance of Unrecognized Tax Benefits	if resolved favorably, would reduce income tax expense by $7,998. A reconciliation of the beginning and ending amounts of unrecognized tax benefits for the years ended March 31, 2016, March 31, 2015 and 2014 is as follows: (Amounts in thousands) Balance as of March 31, 2013 $ 10,668 Tax positions taken in current year 2,954 Decreases in tax positions for prior years (47 ) Increases in tax positions for prior years 825 Settlements — Lapse of statute of limitations (1,545 ) Balance as of March 31, 2014 12,855 Decreases in tax positions for prior years (672 ) Increases in tax positions for prior years 336 Settlements — Lapse of statute of limitations (2,067 ) Balance as of March 31, 2015 $ 10,452 Tax positions taken in current year 917 Decreases in tax positions for prior years (599 ) Increases in tax positions for prior years 358 Settlements — Lapse of statute of limitations (3,130 ) Balance as of March 31, 2016 $ 7,998

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	12 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Summary of Net Income (Loss) Per Share	The following table presents information necessary to calculate net income (loss) per share for the fiscal years ended March 31, 2016, 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: (Amounts in thousands, except per share data) 2016 2015 2014 NET INCOME (LOSS) PER SHARE — BASIC: Net income attributable to ADS $ 25,052 $ (7,827 ) $ 4,381 Adjustment for: Change in fair value of Redeemable convertible preferred stock — (11,054 ) (3,979 ) Accretion of Redeemable noncontrolling interest in subsidiaries (932 ) — — Dividends paid to Redeemable convertible preferred stockholders (1,425 ) (661 ) (10,139 ) Dividends paid to unvested restricted stockholders (24 ) (11 ) (25 ) Net income (loss) available to common stockholders and participating securities 22,671 (19,553 ) (9,762 ) Undistributed income allocated to participating securities (1,270 ) — — Net income (loss) available to common stockholders — Basic 21,401 (19,553 ) (9,762 ) Weighted average number of common shares outstanding — Basic 53,978 51,344 47,277 Net income (loss) per common share — Basic $ 0.40 $ (0.38 ) $ (0.21 ) NET INCOME (LOSS) PER SHARE — DILUTED: Net income (loss) available to common stockholders — Diluted 21,401 (19,553 ) (9,762 ) Weighted average number of common shares outstanding — Basic 53,978 51,344 47,277 Assumed exercise of stock options 1,198 — — Weighted average number of common shares outstanding — Diluted 55,176 51,344 47,277 Net income (loss) per common share — Diluted $ 0.39 $ (0.38 ) $ (0.21 ) Potentially dilutive securities excluded as anti-dilutive 6,383 5,395 185

Business Segment Information (T

Business Segment Information (Tables)	12 Months Ended
	Mar. 31, 2016
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 in each of the fiscal years ended March 31: (Amounts in thousands) 2016 2015 2014 Domestic Pipe $ 812,071 $ 771,214 $ 700,270 Allied Products 301,725 256,719 235,022 Total domestic 1,113,796 1,027,933 935,292 International Pipe 139,731 125,407 107,078 Allied Products 37,151 26,733 25,410 Total international 176,882 152,140 132,488 Total Net sales $ 1,290,678 $ 1,180,073 $ 1,067,780
Schedule of Additional Financial Information Attributable to Reportable Segments	The following sets forth certain additional financial information attributable to our reportable segments for the fiscal years ended March 31: (Amounts in thousands) 2016 2015 2014 Gross Profit Domestic $ 249,817 $ 179,470 $ 164,693 International 35,535 25,643 27,855 Total $ 285,352 $ 205,113 $ 192,548 Segment Adjusted EBITDA Domestic $ 162,875 $ 128,973 $ 132,504 International 24,465 14,904 18,829 Total $ 187,340 $ 143,877 $ 151,333 Interest expense Domestic $ 17,908 $ 19,308 $ 18,659 International 552 60 148 Total $ 18,460 $ 19,368 $ 18,807 Income tax expense Domestic $ 20,465 $ 5,351 $ 17,612 International 3,033 933 2,025 Total $ 23,498 $ 6,284 $ 19,637 Depreciation and amortization Domestic $ 62,625 $ 59,397 $ 57,834 International 8,384 6,075 5,840 Total $ 71,009 $ 65,472 $ 63,674 Equity in net (loss) income of unconsolidated affiliates Domestic $ 181 $ 289 $ 417 International (5,415 ) (2,624 ) (3,503 ) Total $ (5,234 ) $ (2,335 ) $ (3,086 ) Capital expenditures Domestic $ 37,242 $ 29,345 $ 37,095 International 7,700 2,735 3,838 Total $ 44,942 $ 32,080 $ 40,933 The following sets forth certain additional financial information attributable to our reportable segments as of March 31: 2016 2015 2014 Investments in unconsolidated affiliates Domestic $ 2,932 $ 7,957 $ 5,202 International 10,256 17,081 18,422 Total $ 13,188 $ 25,038 $ 23,624 Total identifiable assets Domestic $ 952,417 $ 938,996 $ 883,327 International 147,814 168,320 113,114 Eliminations (59,784 ) (69,192 ) (13,308 ) Total $ 1,040,447 $ 1,038,124 $ 983,133
Schedule of Reconciliation of Segment Adjusted EBITDA to Net Income	Reconciliation of Segment Adjusted EBITDA to Net income 2016 2015 2014 (Amounts in thousands) Domestic International Domestic International Domestic International Net income (loss) $ 24,875 $ 5,692 $ (9,443 ) $ 5,747 $ 646 $ 7,328 Depreciation and amortization 62,625 8,384 59,397 6,075 57,834 5,840 Interest expense 17,908 552 19,308 60 18,659 148 Income tax expense 20,465 3,033 5,351 933 17,612 2,025 Segment EBITDA 125,873 17,661 74,613 12,815 94,751 15,341 Derivative fair value adjustments 2,139 24 7,774 (28 ) (53 ) — Foreign currency transaction losses (gains) — 697 5,636 (232 ) — 845 Loss (gain) on sale of business or disposal of assets 892 (80 ) 257 105 (2,817 ) (46 ) Unconsolidated affiliates interest, taxes, depreciation and amortization (a) 1,052 2,163 1,341 2,244 156 2,689 Special Dividend compensation — — — — 25,134 — Contingent consideration remeasurement 371 — 174 — 738 — Stock-based compensation expense (benefit) (5,868 ) — 24,247 — 4,338 — ESOP deferred stock-based compensation 10,250 — 12,144 — 7,891 — Expense (benefit) related to executive termination payments (294 ) — 328 — 737 — Expense related to executive stock repurchase agreements — — 1,011 — 69 — Loss related to BaySaver step acquisition 490 — — — — — Restatement costs (b) 27,970 — — — — — Impairment on investment in unconsolidated affiliate — 4,000 — — — — Transaction costs (c) — — 1,448 — 1,560 — Segment Adjusted EBITDA $ 162,875 $ 24,465 $ 128,973 $ 14,904 $ 132,504 $ 18,829 (a) Includes our proportional share of interest, income taxes, depreciation and amortization related to our South American Joint Venture and our Tigre-ADS (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 year 2015 Form 10-K. (c) Represents expenses recorded related to legal, accounting and other professional fees incurred in connection with our debt refinancing, the IPO and secondary public offering and asset acquisitions and dispositions.
Net Sales and Long-Lived Asset by Geographic Location	Geographic Sales and Assets Information Net sales are attributed to the geographic location based on the location of the customer. The table below represents the Net sales and long-lived asset information by geographic location for each of the fiscal years ended March 31: (Amounts in thousands) 2016 2015 2014 Net Sales North America $ 1,274,700 $ 1,161,909 $ 1,046,595 Other 15,978 18,164 21,185 Total $ 1,290,678 $ 1,180,073 $ 1,067,780 (Amounts in thousands) 2016 2015 Long-Lived Assets (a) North America $ 395,716 $ 385,878 Other 10,256 17,081 Total $ 405,972 $ 402,959 (a) For segment reporting purposes, long-lived assets include Investments in unconsolidated affiliates, Central parts and Property, plant and equipment.

Supplemental Disclosures of C50

Supplemental Disclosures of Cash Flow Information (Tables)	12 Months Ended
	Mar. 31, 2016
Supplemental Cash Flow Elements [Abstract]
Increase (Decrease) in Cash Due to Changes Working Capital	The increase (decrease) in cash due to the changes in working capital accounts for the fiscal years ended March 31, were as follows: (Amounts in thousands) 2016 2015 2014 Changes in working capital: Receivables $ (37,788 ) $ (10,351 ) $ (5,876 ) Inventories 28,330 (7,663 ) (37,595 ) Prepaid expenses and other current assets 646 1,953 (3,298 ) Accounts payable, accrued expenses, and other liabilities 10,156 (767 ) 10,371 Total $ 1,344 $ (16,828 ) $ (36,398 )
Supplemental Disclosures Cash Flow Information	Supplemental disclosures of cash flow information for the fiscal years ended March 31 were as follows: (Amounts in thousands) 2016 2015 2014 Supplemental disclosures of cash flow information — cash paid during years: Interest $ 18,352 $ 18,709 $ 17,267 Income taxes 32,175 28,503 23,701 (Amounts in thousands) 2016 2015 2014 Supplemental schedule of noncash investing and financing activities: Redeemable convertible preferred stock dividend $ 132 $ 127 $ 118 Redemption of common stock to exercise stock options — 93 1,187 Receivable recorded to exercise stock options — — 76 Purchases of plant, property, and equipment included in accounts payable 1,165 124 682 Receivable recorded for sale of businesses 150 600 1,241 ESOP distributions in common stock 10,250 6,133 — Inventory contributed for Investment in unconsolidated affiliate — — 1,285 Assets acquired and obligation incurred under capital lease 34,207 24,047 24,902 Lease obligation retired upon disposition of leased assets 134 779 3,708 Reclassification of liability-classified stock options and restricted stock to equity 3,702 12,141 1,733 Reclassification of stock repurchase agreement liability and mezzanine equity to equity — 19,729 — Accretion of stock repurchase agreement mezzanine equity recorded to retained earnings — — 240 Reclassification of deferred public offering cost asset upon initial public offering — 456 —

Restatement of Previously Iss51

Restatement of Previously Issued Financial Statements (Tables)	12 Months Ended
	Mar. 31, 2016
Accounting Changes and Error Corrections [Abstract]
Schedule of Adjustments to Consolidated Financial Statements	The effect of the revision and the restatement described above on the Company’s previously reported Consolidated Statements of Operations for the fiscal years ended March 31, 2016, 2015 and 2014 is as follows: For the Year Ended March 31, 2016 (Amounts in thousands, except As Previously Effect of Revision Stock-Based As Restated Net sales $ 1,290,678 $ — $ — $ 1,290,678 Cost of goods sold 1,005,626 — (300 ) (a) 1,005,326 Gross profit 285,052 — 300 285,352 Operating expenses: — Selling 88,978 — (500 ) (a) 88,478 General and administrative 101,445 — (8,941 ) (b) 92,504 Loss on disposal of assets or businesses 812 — — 812 Intangible amortization 9,224 — — 9,224 Income from operations 84,593 — 9,741 94,334 Other expense: — Interest expense 18,460 — — 18,460 Derivative losses and other expense, net 16,575 — — 16,575 Income before income taxes 49,558 — 9,741 59,299 Income tax expense 20,855 — 2,643 23,498 Equity in net loss of unconsolidated affiliates 5,234 — — 5,234 Net income 23,469 — 7,098 30,567 Less net income attributable to noncontrolling interest 5,515 — — 5,515 Net income attributable to ADS 17,954 — 7,098 25,052 Accretion of Redeemable noncontrolling interest (932 ) — — (932 ) Dividends to redeemable convertible preferred stockholders (1,425 ) — — (1,425 ) Dividends paid to unvested restricted stockholders (24 ) — — (24 ) Net income available to common stockholders and participating securities 15,573 — 7,098 22,671 Undistributed income allocated to participating securities (511 ) — (759 ) (1,270 ) Net income available to common stockholders $ 15,062 $ — $ 6,339 $ 21,401 Weighted average common shares outstanding: Basic 53,978 — — 53,978 Diluted 55,052 — 124 55,176 Net income per share: Basic $ 0.28 — $ 0.12 $ 0.40 Diluted $ 0.27 — $ 0.12 $ 0.39 Cash dividends declared per share $ 0.20 $ 0.20 (a) This entire amount relates to the adjustments for stock-based compensation. (b) This amount consists of ($8,647) and ($294) related to the adjustments for stock-based compensation and the executive termination payments, respectively. For the Year Ended March 31, 2015 (Amounts in thousands, except As Previously Effect of Revision Stock-Based As Restated Net sales $ 1,180,073 $ — $ — $ 1,180,073 Cost of goods sold 973,960 (100 ) 1,100 (a) 974,960 Gross profit 206,113 100 (1,100 ) 205,113 Operating expenses: Selling 78,981 — 1,500 (a) 80,481 General and administrative 58,749 — 17,106 (b) 75,855 Gain on disposal of assets or businesses 362 — — 362 Intangible amortization 9,754 — — 9,754 Income from operations 58,267 100 (19,706 ) 38,661 Other expense: Interest expense 19,368 — — 19,368 Derivative losses and other expense, net 14,370 — — 14,370 Income before income taxes 24,529 100 (19,706 ) 4,923 Income tax expense 9,443 40 (3,199 ) 6,284 Equity in net loss of unconsolidated affiliates 2,335 — — 2,335 Net income (loss) 12,751 60 (16,507 ) (3,696 ) Less net income attributable to noncontrolling interest 4,131 — — 4,131 Net income (loss) attributable to ADS 8,620 60 (16,507 ) (7,827 ) Change in fair value of redeemable convertible preferred stock (11,054 ) — — (11,054 ) Dividends to redeemable convertible preferred stockholders (661 ) — — (661 ) Dividends paid to unvested restricted stockholders (11 ) — — (11 ) Net loss available to common stockholders and participating securities (3,106 ) 60 (16,507 ) (19,553 ) Net loss available to common stockholders $ (3,106 ) $ 60 $ (16,507 ) $ (19,553 ) Weighted average common shares outstanding: Basic 51,344 — — 51,344 Diluted 51,344 — — 51,344 Net loss per share: Basic $ (0.06 ) $ (0.00 ) $ (0.32 ) $ (0.38 ) Diluted $ (0.06 ) $ (0.00 ) $ (0.32 ) $ (0.38 ) Cash dividends declared per share $ 0.08 $ 0.08 (a) This entire amount relates to the adjustments for stock-based compensation. (b) This amount consists $15,767, $1,011 and $328 related to the adjustments for stock-based compensation, the executive stock repurchase agreements and the executive termination payments, respectively. For the Year Ended March 31, 2014 (Amounts in thousands, except As Previously Effect of Revision Stock-Based As Restated Net sales $ 1,067,780 $ — $ — $ 1,067,780 Cost of goods sold 873,810 1,422 — 875,232 Gross profit 193,970 (1,422 ) — 192,548 Operating expenses: Selling 74,042 — — 74,042 General and administrative 59,761 — 3,136 (a) 62,897 Gain on disposal of assets or businesses (2,863 ) — — (2,863 ) Intangible amortization 10,145 — — 10,145 Income from operations 52,885 (1,422 ) (3,136 ) 48,327 Other expense: Interest expense 18,807 — — 18,807 Derivative losses (gains) and other expense (income), net (1,177 ) — — (1,177 ) Income before income taxes 35,255 (1,422 ) (3,136 ) 30,697 Income tax expense 19,949 (527 ) 215 19,637 Equity in net loss of unconsolidated affiliates 3,086 — — 3,086 Net income 12,220 (895 ) (3,351 ) 7,974 Less net income attributable to noncontrolling interest 3,593 — — 3,593 Net income attributable to ADS 8,627 (895 ) (3,351 ) 4,381 Change in fair value of redeemable convertible preferred stock (3,979 ) — — (3,979 ) Dividends to redeemable convertible preferred stockholders (10,139 ) — — (10,139 ) Dividends paid to unvested restricted stockholders (418 ) — 393 (25 ) Net loss available to common stockholders and participating securities (5,909 ) (895 ) (2,958 ) (9,762 ) Net loss available to common stockholders $ (5,909 ) $ (895 ) $ (2,958 ) $ (9,762 ) Weighted average common shares outstanding: Basic 47,277 — — 47,277 Diluted 47,277 — — 47,277 Net loss per share: Basic $ (0.12 ) $ (0.02 ) $ (0.07 ) $ (0.21 ) Diluted $ (0.12 ) $ (0.02 ) $ (0.07 ) $ (0.21 ) Cash dividends declared per share $ 1.68 $ 1.68 (a) This amount consists of ($180), $2,579 and $737 related to the adjustments for stock-based compensation, the executive stock repurchase agreements and the executive termination payments, respectively. Impact on Consolidated Balance Sheets The effect of the revision and the restatement described above on the Company’s previously reported Consolidated Balance Sheets as of March 31, 2016 and 2015 is as follows: March 31, 2016 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Restated ASSETS Cash $ 6,555 $ — $ — $ 6,555 Receivables, net 186,883 — — 186,883 Inventories 230,466 — — 230,466 Deferred income taxes and other current assets 12,859 — 2,799 15,658 Property, plant and equipment, net 391,744 — — 391,744 Goodwill 100,885 — — 100,885 Intangible assets, net 59,869 — — 59,869 Other assets 48,387 — — 48,387 Total assets $ 1,037,648 $ — $ 2,799 $ 1,040,447 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY Current maturities of debt obligations $ 35,870 $ — $ — $ 35,870 Current maturities of capital lease obligations 19,231 — — 19,231 Accounts payable 119,606 — — 119,606 Current portion of liability-classified stock-based awards — — 10,118 10,118 Other accrued liabilities 65,099 — — 65,099 Accrued income taxes 1,822 — 438 2,260 Long-term debt obligation 315,345 — — 315,345 Long-term capital lease obligation 56,809 — — 56,809 Deferred tax liabilities 63,683 — 269 63,952 Other liabilities 30,803 — 7,118 37,921 Total liabilities 708,268 — 17,943 726,211 Mezzanine equity 111,747 — — 111,747 Common stock 12,393 — — 12,393 Paid-in 715,859 — 23,238 739,097 Common stock in treasury, at cost (440,995 ) — — (440,995 ) Accumulated other comprehensive loss (21,261 ) — — (21,261 ) Retained earnings (deficit) (63,396 ) — (38,382 ) (101,778 ) Noncontrolling interest in subsidiaries 15,033 — — 15,033 Total liabilities, mezzanine equity and stockholders’ equity $ 1,037,648 $ — $ 2,799 $ 1,040,447 March 31, 2015 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Restated ASSETS Cash $ 3,623 $ — $ — $ 3,623 Receivables, net 154,294 — — 154,294 March 31, 2015 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Restated Inventories 269,842 (9,292 ) — 260,550 Deferred income taxes and other current assets 18,972 3,532 3,439 25,943 Property, plant and equipment, net 377,067 (1,254 ) — 375,813 Goodwill 98,679 — — 98,679 Intangible assets, net 58,055 — — 58,055 Other assets 61,167 — — 61,167 Total assets $ 1,041,699 $ (7,014 ) $ 3,439 $ 1,038,124 LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY Current maturities of debt obligations $ 9,580 $ — $ — $ 9,580 Current maturities of capital lease obligations 15,731 — — 15,731 Accounts payable 111,893 — — 111,893 Current portion of liability-classified stock-based awards — — 17,611 17,611 Other accrued liabilities 54,349 — — 54,349 Accrued income taxes 6,041 11 247 6,299 Long-term debt obligation 390,315 — — 390,315 Long-term capital lease obligation 45,503 — — 45,503 Deferred tax liabilities 65,088 (492 ) (1,764 ) 62,832 Other liabilities 28,602 (44 ) 10,307 38,865 Total liabilities 727,102 (525 ) 26,401 752,978 Mezzanine equity 108,021 — — 108,021 Common stock 12,393 — — 12,393 Paid-in 700,977 — 22,518 723,495 Common stock in treasury, at cost (445,065 ) — — (445,065 ) Accumulated other comprehensive loss (15,521 ) — — (15,521 ) Retained earnings (deficit) (62,621 ) (6,489 ) (45,480 ) (114,590 ) Noncontrolling interest in subsidiaries 16,413 — — 16,413 Total liabilities, mezzanine equity and stockholders’ equity $ 1,041,699 $ (7,014 ) $ 3,439 $ 1,038,124 Cumulative Effect of Prior Period Adjustments The following table presents the impact of the revision and the restatement described above to the Company’s beginning stockholders’ equity (deficit) balances, cumulatively to reflect adjustments booked to all periods prior to April 1, 2013: (Amounts in thousands) Common Paid in Common Accumulated Retained Total ADS Non-controlling Total Stockholders’ equity (deficit), March 31, 2013 (as previously reported) $ 11,957 $ 40,026 $ (448,571 ) $ (1,081 ) $ 79,202 $ (318,467 ) $ 18,544 $ (299,923 ) Adjustments from: Effect of Revision — — — — (5,654 ) (5,654 ) — (5,654 ) Stock-Based Compensation Restatement — (155 ) — — (26,638 ) (26,793 ) — (26,793 ) Total adjustments — (155 ) — — (32,292 ) (32,447 ) — (32,447 ) Stockholders’ equity (deficit), March 31, 2013 (As Restated) $ 11,957 $ 39,871 $ (448,571 ) $ (1,081 ) $ 46,910 $ (350,914 ) $ 18,544 $ (332,370 ) Impact on Consolidated Statements of Cash Flows The effect of the revision and the restatement on the Company’s previously reported Consolidated Statements of Cash Flows for the fiscal years ended March 31, 2016, 2015 and 2014 is as follows: For the Year Ended March 31, 2016 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Cash Flows from Operating Activities Net income $ 23,469 $ — $ 7,098 $ 30,567 ESOP, stock repurchase agreement and stock-based compensation 13,829 — (9,447 ) 4,382 All other adjustments to reconcile net income to net cash provided by operating activities 98,044 — 2,349 100,393 Net cash provided by operating activities 135,342 — — 135,342 Cash Flows from Investing Activities Net cash used in investing activities (49,018 ) — — (49,018 ) Cash Flows from Financing Activities Net cash used in financing activities (82,964 ) — — (82,964 ) Effect of exchange rate changes on cash (428 ) — — (428 ) Net change in cash 2,932 — — 2,932 Cash at beginning of year 3,623 — — 3,623 Cash at end of year $ 6,555 $ — $ — $ 6,555 For the Year Ended March 31, 2015 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Cash Flows from Operating Activities Net income $ 12,751 $ 60 $ (16,507 ) $ (3,696 ) ESOP, stock repurchase agreement and stock-based compensation 18,024 — 19,378 37,402 All other adjustments to reconcile net income to net cash provided by operating activities 43,604 (60 ) (2,871 ) 40,673 Net cash provided by operating activities 74,379 — — 74,379 Cash Flows from Investing Activities Net cash used in investing activities (76,093 ) — — (76,093 ) Cash Flows from Financing Activities Net cash provided by financing activities 1,791 — — 1,791 Effect of exchange rate changes on cash (385 ) — — (385 ) Net change in cash (308 ) — — (308 ) Cash at beginning of year 3,931 — — 3,931 Cash at end of year $ 3,623 $ — $ — $ 3,623 For the Year Ended March 31, 2014 (Amounts in thousands) As Previously Effect of Revision Stock-Based Compensation Restatement As Cash Flows from Operating Activities Net income $ 12,220 $ (895 ) $ (3,351 ) $ 7,974 ESOP, stock repurchase agreement and stock-based compensation 35,033 — 2,399 37,432 All other adjustments to reconcile net income to net cash provided by operating activities 25,157 895 952 27,004 Net cash provided by operating activities 72,410 — — 72,410 Cash Flows from Investing Activities Net cash used in investing activities (38,712 ) — — (38,712 ) Cash Flows from Financing Activities Net cash used in financing activities (31,109 ) — — (31,109 ) Effect of exchange rate changes on cash (19 ) — — (19 ) Net change in cash 2,570 — — 2,570 Cash at beginning of year 1,361 — — 1,361 Cash at end of year $ 3,931 $ — $ — $ 3,931

Quarterly Financial Informati52

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Mar. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Information	The following tables set forth certain historical unaudited consolidated condensed quarterly financial information for each of the quarters during the years ended March 31, 2016 and 2015. Fiscal Year 2016 For the Three Months Ended March 31, 2016 December 31, 2015 September 30, 2015 June 30, 2015 (in thousands, except per share amounts) (As (As (As (As (As (As (As (As Net sales $ 245,398 $ 245,398 $ 312,827 $ 312,827 $ 383,329 $ 383,329 $ 349,124 $ 349,124 Gross profit 49,404 49,504 74,642 74,842 86,529 86,529 74,477 74,477 Net (loss) income (14,057 ) (11,085 ) 8,443 12,942 16,171 15,928 12,912 12,782 Net (loss) income attributable to ADS (15,091 ) (12,119 ) 8,632 13,131 12,589 12,346 11,824 11,694 Net (loss) income per share Basic $ (0.29 ) $ (0.24 ) $ 0.14 $ 0.21 $ 0.20 $ 0.20 $ 0.20 $ 0.19 Diluted $ (0.29 ) $ (0.24 ) $ 0.13 $ 0.21 $ 0.20 $ 0.19 $ 0.19 $ 0.19 Fiscal Year 2015 For the Three Months Ended March 31, 2015 December 31, 2014 September 30, 2014 June 30, 2014 (in thousands, except (As (As (As (As (As (As (As (As Net sales $ 207,054 $ 207,054 $ 279,871 $ 279,871 $ 366,714 $ 366,714 $ 326,434 $ 326,434 Gross profit 26,314 24,384 49,178 49,287 69,763 70,137 60,858 61,305 Net (loss) income (13,734 ) (24,909 ) (1,953 ) (3,269 ) 18,997 18,081 9,441 6,401 Net (loss) income attributable to ADS (13,465 ) (24,640 ) (3,325 ) (4,641 ) 16,844 15,928 8,566 5,526 Net (loss) income per share Basic $ (0.26 ) $ (0.47 ) $ (0.07 ) $ (0.09 ) $ 0.41 $ 0.40 $ (0.21 ) $ (0.27 ) Diluted $ (0.26 ) $ (0.47 ) $ (0.07 ) $ (0.09 ) $ 0.41 $ 0.40 $ (0.21 ) $ (0.27 )

Background and Summary of Sig53

Background and Summary of Significant Accounting Policies - Additional Information (Detail)		Mar. 31, 2016USD ($)$ / sharesshares	Dec. 15, 2014USD ($)$ / sharesshares	Dec. 09, 2014USD ($)$ / sharesshares	Aug. 22, 2014$ / sharesshares	Jul. 25, 2014USD ($)$ / sharesshares	Jul. 11, 2014	Mar. 31, 2016USD ($)SegmentCustomer$ / sharesshares	Mar. 31, 2015USD ($)$ / sharesshares	Mar. 31, 2014USD ($)
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | Segment								2
Net proceeds from initial public offering	[1]								$ 79,131,000
Offering price per share | $ / shares	[1]	$ 0.01						$ 0.01	$ 0.01
Common stock, shares issued | shares	[1]	153,560,000						153,560,000	153,560,000
Interest capitalized								$ 411,000	$ 518,000	$ 611,000
Shipping costs								120,487,000	120,993,000	111,862,000
Advertising costs								3,150,000	2,477,000	2,335,000
Life, accidental death and dismemberment and medical coverage		$ 37,509,000						37,509,000	32,002,000	29,484,000
Self insurance plan employees contribution								4,511,000	4,067,000	4,032,000
Total claims expense, self insurance								$ 3,873,000	1,369,000	1,395,000
Minimum likelihood percentage of tax benefit to be realized upon settlement		50.00%						50.00%
South American Joint Venture [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Other assets, impairment charges								$ 4,000,000
Sales [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Shipping costs								7,026,000	9,282,000	8,864,000
Other General Insurance Programs [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Total claims expense, self insurance								2,133,000	569,000	$ 447,000
Senior Notes Payable [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Senior notes		$ 100,000,000						100,000,000	100,000,000
Senior Notes Payable [Member] | Level 2 [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Senior notes		100,000,000						100,000,000	100,000,000
Senior notes, fair value		$ 101,175,000						$ 101,175,000	$ 103,590,000
Sales Revenue, Net [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Number of customers in the customer base | Customer								20,000
Concentration risk description								We have a large, active customer base of approximately twenty thousand customers with two customers each representing more than 10% of annual net sales.
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage								21.10%	20.30%	20.50%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage		14.00%
Minimum [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Capitalized software development costs estimated useful lives								2 years
Central parts estimated useful lives								8 years
Claims per incident										$ 250,000
Minimum [Member] | Other General Insurance Programs [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Claims per occurrence								$ 250,000
Maximum [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Capitalized software development costs estimated useful lives									10 years
Central parts estimated useful lives									30 years
Maximum [Member] | Other General Insurance Programs [Member]
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]
Claims per occurrence								$ 500,000
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
Other offering expenses						$ 6,935,000
Indebtedness under the revolving portion of credit facility						$ 72,196,000
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
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Background and Summary of Sig54

Background and Summary of Significant Accounting Policies - Summary of Receivables (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Receivables	[1]	$ 186,883	$ 154,294
Trade Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Receivables		158,664	141,528
Refundable Income Taxes [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Receivables		19,783	1,895
Other Miscellaneous Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Receivables		$ 8,436	$ 10,871
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Background and Summary of Sig55

Background and Summary of Significant Accounting Policies - Estimated Useful Lives of Related Assets (Detail)	12 Months Ended
	Mar. 31, 2016
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	45 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	18 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	Shorter of useful life or life of lease

Background and Summary of Sig56

Background and Summary of Significant Accounting Policies - Other assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Other Assets, Noncurrent [Abstract]
Investments in unconsolidated affiliates		$ 13,188	$ 25,038
Cash surrender value of officer life insurance		10,739	9,953
Capitalized software development costs, net		7,264	7,276
Deposits		4,553	4,947
Deferred financing costs		3,131	4,543
Central parts		1,040	2,108
Other		8,472	7,302
Total other assets	[1]	$ 48,387	$ 61,167
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Background and Summary of Sig57

Background and Summary of Significant Accounting Policies - Amortization Expense Related to Other Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Amortization [Abstract]
Capitalized software development costs	$ 3,872	$ 3,550	$ 3,270
Deferred financing costs	1,412	1,410	1,591
Central parts	362	55	43
Other	$ 1,898	$ 1,977	$ 1,986

Disposal of Assets or Busines58

Disposal of Assets or Businesses - Additional Information (Detail) - USD ($)		Jun. 28, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss on disposition of the equipment					$ 812,000	$ 1,112,000	$ 2,475,000
Cash proceeds from sale	[1]					538,000	9,302,000
NDS Agreement [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from sale		$ 5,877,000
Net book value of assets or businesses		1,029,000
Gain on sale		$ 4,848,000
Miscellaneous [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price			$ 750,000			750,000
Cash proceeds from sale			150,000	$ 3,030,000
Other consideration in the form of a note receivable			600,000	1,241,000
Net book value of assets or businesses			0	3,781,000		$ 0	$ 3,781,000
Gain on sale			$ 750,000	$ 490,000
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands		Jul. 17, 2015	Jan. 30, 2015	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014	Jul. 31, 2015
Business Acquisition [Line Items]
Goodwill				$ 100,885	[1]	$ 98,679	[1]	$ 88,017
Intangible assets				109,164		105,906
Depreciation and amortization	[1]			(71,009)		(65,472)		(63,674)
Ideal Pipe [Member]
Business Acquisition [Line Items]
Purchase price			$ 43,828
Goodwill			10,660
Business acquisition, purchase price			43,828
Transaction costs related to the purchase of Ideal Pipe						5,636
Pro Forma [Member] | Ideal Pipe [Member]
Business Acquisition [Line Items]
Intangible asset amortization expense, net of related income taxes						749		951
Interest expense, net of related income taxes						513		521
Depreciation and amortization						(7)
Depreciation and amortization								$ 354
BaySaver [Member]
Business Acquisition [Line Items]
Additionally acquired percentage of ownership in joint ventures		10.00%							10.00%
Purchase price		$ 3,200		14,500
Percentage of voting interests acquired		65.00%
Fair value of contingent consideration		$ 750		750
Business combination equity interest remeasurement loss		490
Goodwill				2,495
Net sales of acquired entity included in condensed consolidated statements of operations		10,190
Earnings from operations of acquired entity included in condensed consolidated statements of operations		1,242
Business acquisition, purchase price				14,500
BaySaver [Member] | Pro Forma [Member]
Business Acquisition [Line Items]
Intangible asset amortization expense, net of related income taxes				94		324
Interest expense, net of related income taxes				10		34
Equity method investments net of related income taxes				109		342
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets				40,732		43,167
Customer Relationships [Member] | Ideal Pipe [Member]
Business Acquisition [Line Items]
Intangible assets			$ 4,881
Intangible assets, useful life			7 years
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				$ 44,579		40,579
Developed Technology [Member] | BaySaver [Member]
Business Acquisition [Line Items]
Intangible assets		$ 4,000
Intangible assets, useful life		10 years
Trademarks and Tradenames [Member]
Business Acquisition [Line Items]
Intangible assets				15,563		$ 14,248
Trademarks and Tradenames [Member] | BaySaver [Member]
Business Acquisition [Line Items]
Intangible assets				$ 1,400
Intangible assets, useful life				10 years
Trade Names [Member] | Ideal Pipe [Member]
Business Acquisition [Line Items]
Intangible assets			$ 3,073
Intangible assets, useful life			10 years
Noncompete Agreements [Member] | Ideal Pipe [Member]
Business Acquisition [Line Items]
Intangible assets			$ 276
Intangible assets, useful life			3 years
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Acquisition - Schedule of Busin

Acquisition - Schedule of Business Acquisitions by Acquisition, Contingent Consideration (Detail) - BaySaver [Member] - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	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 Purch

Acquisitions - Summary of Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Mar. 31, 2016		Jul. 17, 2015	Mar. 31, 2015	[1]	Jan. 30, 2015	Mar. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 100,885	[1]		$ 98,679			$ 88,017
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
Ideal Pipe [Member]
Business Acquisition [Line Items]
Cash						$ 7,443
Other current assets						9,036
Property, plant and equipment						27,258
Goodwill						10,660
Goodwill and intangible assets						18,890
Current liabilities						(12,721)
Non-current liabilities						(6,078)
Total purchase price						$ 43,828
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Acquisitions - Effect of Acquis

Acquisitions - Effect of Acquisitions for Unaudited Pro Forma Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
BaySaver [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales	$ 1,294,277	$ 1,190,749
Net income (loss) attributable to ADS	$ 25,090	(7,799)
Ideal Pipe [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales		1,217,431	$ 1,102,477
Net income (loss) attributable to ADS		$ (6,118)	$ 4,783

Property, Plant, and Equipment

Property, Plant, and Equipment - Schedule of Property, Plant, Equipment and Depreciation Expense on Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Property, Plant and Equipment [Line Items]
Construction in progress		$ 14,902	$ 5,991
Property, plant and equipment, gross		923,882	873,143
Less accumulated depreciation		(532,138)	(497,330)
Property, plant and equipment, net	[1]	391,744	375,813
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		178,189	177,073
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		$ 730,791	$ 690,079
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Property, Plant, and Equipmen64

Property, Plant, and Equipment - Depreciation Expense Related to Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Property, Plant and Equipment [Abstract]
Depreciation expense (inclusive of leased assets depreciation)	$ 55,650	$ 50,136	$ 48,230

Leases - Summary of Leased Asse

Leases - Summary of Leased Assets Included in Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Capital Leased Assets [Line Items]
Total cost	$ 192,389	$ 175,600
Less accumulated amortization	(102,572)	(102,263)
Leased assets in Property, plant and equipment, net	89,817	73,337
Buildings and Improvements [Member]
Capital Leased Assets [Line Items]
Total cost	6,131	7,163
Machinery and Equipment [Member]
Capital Leased Assets [Line Items]
Total cost	$ 186,258	$ 168,437

Leases - Schedule of Interest a

Leases - Schedule of Interest and Depreciation Expense Related to Capital Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Leases [Abstract]
Lease interest expense	$ 3,367	$ 2,249	$ 2,666
Depreciation of leased assets	$ 15,782	$ 13,943	$ 12,644

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments under Capital Leases and Present Value (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments, Fiscal Year Maturity [Abstract]
2,017		$ 22,077
2,018		19,065
2,019		14,961
2,020		11,603
2,021		8,975
Thereafter		7,317
Total minimum lease payments		83,998
Less: amount representing interest		7,958
Present value of net minimum lease payments		76,040
Lease obligation - Current	[1]	19,231	$ 15,731
Lease obligation - Long-term	[1]	56,809	$ 45,503
Total lease obligation		$ 76,040
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Leases - Schedule of Future M68

Leases - Schedule of Future Minimum Lease Payments under Capital Leases and Present Value (Parenthetical) (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments, Fiscal Year Maturity [Abstract]
Contingent rentals amount	$ 137	$ 844

Leases - Summary of Future Mini

Leases - Summary of Future Minimum Rental Commitments under Operating Leases (Detail) $ in Thousands	Mar. 31, 2016USD ($)
Leases, Operating [Abstract]
Future operating lease payments, 2017	$ 2,224
Future operating lease payments, 2018	1,304
Future operating lease payments, 2019	898
Future operating lease payments, 2020	480
Future operating lease payments, 2021	258
Future operating lease payments, thereafter	$ 2,172

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Leases [Abstract]
Total rent expense	$ 6,316	$ 3,953	$ 3,836

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Inventory Disclosure [Abstract]
Raw materials		$ 46,604	$ 50,198
Finished goods		183,862	210,352
Total Inventories	[1]	$ 230,466	$ 260,550
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($)	Mar. 31, 2016	Mar. 31, 2015
Inventory Disclosure [Abstract]
Work-in-process inventories	$ 0	$ 0
General and administrative cost in inventory	18,041,000	17,257,000
General and administrative cost remained in inventory	$ 5,332,000	$ 4,400,000

Goodwill and Intangible Asset73

Goodwill and Intangible Assets - Carrying Amount of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016		Mar. 31, 2015
Goodwill [Line Items]
Beginning balance		$ 98,679	[1]	$ 88,017
Acquisition		2,495		10,660
Currency translation		(289)		2
Ending balance	[1]	100,885		98,679
Domestic [Member]
Goodwill [Line Items]
Beginning balance		87,507		87,507
Acquisition		2,495
Ending balance		90,002		87,507
International [Member]
Goodwill [Line Items]
Beginning balance		11,172		510
Acquisition				10,660
Currency translation		(289)		2
Ending balance		$ 10,883		$ 11,172
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Goodwill and Intangible Asset74

Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		$ 109,164	$ 105,906
Intangible Assets, Gross		121,090	117,865
Accumulated Amortization		(61,221)	(59,810)
Amortization expense, Total		47,943	46,096
Intangible assets, net	[1]	59,869	58,055
Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets		11,926	11,959
Developed Technology [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		44,579	40,579
Accumulated Amortization		(29,371)	(26,405)
Amortization expense, Total		15,208	14,174
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		40,732	43,167
Accumulated Amortization		(22,646)	(26,113)
Amortization expense, Total		18,086	17,054
Patents [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		7,048	6,547
Accumulated Amortization		(4,167)	(3,550)
Amortization expense, Total		2,881	2,997
Non-compete and Other Contractual Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		1,242	1,365
Accumulated Amortization		(842)	(691)
Amortization expense, Total		400	674
Trademarks and Tradenames [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible		15,563	14,248
Accumulated Amortization		(4,195)	(3,051)
Amortization expense, Total		$ 11,368	$ 11,197
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Goodwill and Intangible Asset75

Goodwill and Intangible Assets - Weighted Average Amortization Period for Definite-Lived Intangible Assets (Detail)	12 Months Ended
	Mar. 31, 2016
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period	11 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period	8 years 6 months
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period	8 years 3 months 18 days
Non-compete and Other Contractual Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period	5 years 1 month 6 days
Trademarks and Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period	13 years 6 months

Goodwill and Intangible Asset76

Goodwill and Intangible Assets - Future Intangible Asset Amortization Expense (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense, 2017	$ 8,359
Amortization expense, 2018	7,826
Amortization expense, 2019	7,669
Amortization expense, 2020	5,984
Amortization expense, 2021	5,843
Amortization expense, Thereafter	12,262
Amortization expense, Total	$ 47,943	$ 46,096

Fair Value Measurement - Summar

Fair Value Measurement - Summary of Assets and Liabilities Carried at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015	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	$ 2,858	$ 2,444	$ 663,023
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	11	28
Contingent consideration for acquisitions	2,858	2,444
Total liabilities & mezzanine equity at fair value on a recurring basis	13,752	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	11	28
Total liabilities & mezzanine equity at fair value on a recurring basis	10,894	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	2,858	2,444
Total liabilities & mezzanine equity at fair value on a recurring basis	2,858	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 assets	11
Derivative liability	2,615	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 assets	11
Derivative liability	2,615	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	252	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	252	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		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		28
Fair Value, Measurements, Recurring [Member] | Propylene Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	8,027	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	$ 8,027	$ 5,142

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets and liabilities, additional transfers	$ 0	$ 0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value asset liability measured on recurring basis gain loss included in earnings	$ 123,000	$ 283,000
Level 3 [Member] | South American Joint Venture [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount the future cash flow rates	9.30%
Level 3 [Member] | South American Joint Venture [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount the future cash flow rates	15.50%

Fair Value Measurement - Summ79

Fair Value Measurement - Summary of Quantitative Information about Level 3 Fair Value Measurements (Detail) - Contingent Consideration for Acquisitions [Member] - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Liabilities & Mezzanine Equity	$ 2,858	$ 2,444
Discounted Cash Flow [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Valuation Technique(s)	Discounted cash flow
Discounted Cash Flow [Member] | Weighted Average Cost Of Capital [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Unobservable Input	Unobservable Input Weighted Average Cost of Capital ("WACC")(a)
Quantifiable Input		10.00%
Discounted Cash Flow [Member] | Weighted Average Cost Of Capital [Member] | Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Quantifiable Input	9.75%
Discounted Cash Flow [Member] | Weighted Average Cost Of Capital [Member] | Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Quantifiable Input	10.00%

Fair Value Measurement - Summ80

Fair Value Measurement - Summary of Changes in Fair Value of Recurring Fair Value Measurements Using Unobservable Inputs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Allocation of ESOP shares to participants	$ 3,577	$ 3,003	$ (203)
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	6,673	9,141	8,093
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning	2,444	663,023
Acquisition	750
Allocation of ESOP shares to participants		4,391
Change in fair value	371	78,451
Payments of contingent consideration liability	(707)	(628)
Transfer out of Level 3		(742,793)
Balance ending	2,858	2,444	663,023
Level 3 [Member] | Executive Stock Repurchase Agreements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning		16,934
Change in fair value		1,302
Transfer out of Level 3		(18,236)
Balance ending			16,934
Level 3 [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning	2,444	2,898
Acquisition	750
Change in fair value	371	174
Payments of contingent consideration liability	(707)	(628)
Balance ending	$ 2,858	2,444	2,898
Level 3 [Member] | Redeemable Common Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance beginning		549,359
Change in fair value		65,921
Transfer out of Level 3		(615,280)
Balance ending			549,359
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 out of Level 3		(326,623)
Balance ending			291,720
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 out of Level 3		$ 217,346
Balance ending			$ (197,888)

Investment in Consolidated Affi

Investment in Consolidated Affiliates - Additional Information (Detail) $ in Thousands	Mar. 31, 2013	Apr. 30, 2013USD ($)	Mar. 31, 2016JointVenture	Jul. 31, 2015	Jul. 17, 2015	Jul. 31, 2013
Investments in and Advances to Affiliates [Line Items]
Number of unconsolidated joint venture participated			2
BaySaver [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership in joint ventures			65.00%
Additionally acquired percentage of ownership in joint ventures				10.00%	10.00%
Subsidiaries [Member]
Investments in and Advances to Affiliates [Line Items]
Number of unconsolidated joint venture participated			2
Subsidiaries [Member] | ADS Worldwide, Inc [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership in joint ventures			51.00%
Subsidiaries [Member] | ADS Mexicana [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Investments in and Advances to Affiliates [Line Items]
Company's ownership percentage	50.00%	1.00%	51.00%
Additional equity interest in its consolidated subsidiary, payment | $		$ 520
Subsidiaries [Member] | BaySaver [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership in joint ventures			65.00%			55.00%
Percentage of voting interest			50.00%
Additionally acquired percentage of ownership in joint ventures					10.00%

Investment in Consolidated Af82

Investment in Consolidated Affiliates - Assets and Liabilities of Joint Ventures (Detail) - USD ($) $ in Thousands		Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Assets
Current assets	[1]	$ 439,562		$ 444,410
Property, plant and equipment, net	[1]	391,744		375,813
Other noncurrent assets	[1]	48,387		61,167
Total assets		1,040,447	[1]	1,038,124	[1]	$ 983,133
Liabilities
Current liabilities	[1]	252,184		215,463
Total liabilities	[1]	726,211		752,978
ADS Mexicana [Member]
Assets
Current assets		27,650		24,822
Property, plant and equipment, net		17,461		18,556
Other noncurrent assets		1,742		2,523
Total assets		46,853		45,901
Liabilities
Current liabilities		10,769		11,134
Noncurrent liabilities		5,390		5,259
Total liabilities		16,159		$ 16,393
BaySaver [Member]
Assets
Current assets		3,121
Property, plant and equipment, net		140
Other noncurrent assets		12,668
Total assets		15,929
Liabilities
Current liabilities		1,696
Total liabilities		$ 1,696
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Investment in Unconsolidated Af

Investment in Unconsolidated Affiliates - Additional Information (Detail) $ in Thousands	12 Months Ended
	Mar. 31, 2016USD ($)JointVenture	Jul. 31, 2015	Jul. 17, 2015	Apr. 07, 2014USD ($)
Investments in and Advances to Affiliates [Line Items]
Number of unconsolidated joint venture participated | JointVenture	2
South American Joint Venture [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership in joint ventures	50.00%
Other assets, impairment charges	$ 4,000
Tigre-ADS USA [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership in joint ventures	49.00%			49.00%
Amount paid for acquiring shares				$ 3,566
BaySaver [Member]
Investments in and Advances to Affiliates [Line Items]
Percentage of ownership in joint ventures	65.00%
Additionally acquired percentage of ownership in joint ventures		10.00%	10.00%

Investment in Unconsolidated 84

Investment in Unconsolidated Affiliates - Summarized Financial Data of Joint Ventures (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	$ 13,188	$ 25,038	$ 23,624
South American Joint Venture [Member]
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	10,256	17,081
Receivable from unconsolidated joint venture	3,201	5,607
BaySaver [Member]
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates		4,906
Receivable from unconsolidated joint venture		59
Tigre-ADS USA [Member]
Investments in and Advances to Affiliates [Line Items]
Investment in unconsolidated affiliates	2,932	3,051
Receivable from unconsolidated joint venture	$ 45	$ 27

Investment in Unconsolidated 85

Investment in Unconsolidated Affiliates - Summarized Financial Data of Joint Ventures (Parenthetical) (Detail) $ in Thousands	Mar. 31, 2015USD ($)
South American Joint Venture [Member]
Investments in and Advances to Affiliates [Line Items]
Capital contribution	$ 4,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 28, 2015	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Nov. 11, 2015	Jun. 30, 2015	Apr. 30, 2015
Related Party Transaction [Line Items]
Outstanding letters of credit		$ 10,952,000
Pipe Sales Joint Venture Agreement [Member]
Related Party Transaction [Line Items]
Proceeds from sales		0	$ 3,783,000	$ 6,687,000
Outstanding receivables from related party		344,000	1,005,000
South American Joint Venture [Member]
Related Party Transaction [Line Items]
Maximum borrowings permitted under credit facility		19,000,000
Maximum potential payment under guarantee		11,000,000
Outstanding letters of credit		$ 16,681,000	13,600,000
Debt, expiration date		Jul. 31, 2017
Percentage of debt guarantee		50.00%
Sales with related parties		$ 1,207,000	902,000
Percentage of ownership		50.00%
South American Joint Venture [Member] | US Dollar Denominated Loans [Member]
Related Party Transaction [Line Items]
Weighted average interest rate		3.45%
South American Joint Venture [Member] | Chilean Peso Denominated Loans [Member]
Related Party Transaction [Line Items]
Weighted average interest rate		7.41%
BaySaver [Member]
Related Party Transaction [Line Items]
Percentage of ownership		65.00%
Borrowings outstanding			500,000
Distributions received from member		$ 975,000	$ 1,100,000
ADS Mexicana [Member]
Related Party Transaction [Line Items]
Amount loaned to related party	$ 5,000,000
Interest rate for the loaned amount	2.35%
Outstanding letters of credit		$ 0			$ 6,900,000
ADS Mexicana [Member] | Credit Facility Arrangement with Scotia Bank [Member]
Related Party Transaction [Line Items]
Interest rate for the loaned amount						4.81%
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%	51.00%
Cash payments for consulting services related to the operations of the business and a noncompete arrangement		$ 242,000	$ 459,000	$ 817,000
Guarantee percentage on credit facility		100.00%
Maximum potential guarantee payments		$ 12,000,000
Guarantee description		We are the guarantor of 100% of the ADS Mexicana Revolving Credit Facility

Debt - Long-Term Debt (Detail)

Debt - Long-Term Debt (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Debt Instrument [Line Items]
Revolving credit facility		$ 10,952
Total		351,215	$ 399,895
Total		351,215	399,895
Current maturities	[1]	(35,870)	(9,580)
Long-term debt obligation	[1]	315,345	390,315
ADS [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility		166,000	205,100
Term Note [Member]
Debt Instrument [Line Items]
Term Note		82,500	91,250
Senior Notes Payable [Member]
Debt Instrument [Line Items]
Senior notes		100,000	100,000
Industrial Revenue Bonds [Member]
Debt Instrument [Line Items]
Industrial revenue bonds		$ 2,715	$ 3,545
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Debt (Bank Term Loans) - Additi

Debt (Bank Term Loans) - Additional Information (Detail)	12 Months Ended
	Mar. 31, 2016USD ($)Derivative	Nov. 11, 2015USD ($)	Mar. 31, 2015USD ($)	Mar. 31, 2014
Debt Instrument [Line Items]
Revolving credit facility interest rate	2.70%		2.64%	2.30%
Outstanding letters of credit	$ 10,952,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility expiration date	2018-06
Borrowing under line of credit facility	$ 148,048,000
Revolving Credit Facility [Member] | Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Number of interest rate derivative | Derivative	2
Revolving Credit Facility [Member] | Forward Stating Interest Rate Swap [Member]
Debt Instrument [Line Items]
Derivative, type of interest rate paid on swap	30-Day LIBOR interest rate
Derivative instrument notional amount	$ 50,000,000
Rate of fixed interest swap	0.86%
Maturity period of interest rate derivative	3 years
Revolving Credit Facility [Member] | Forward Second Interest Rate Swap [Member]
Debt Instrument [Line Items]
Derivative instrument notional amount	$ 50,000,000
Rate of fixed interest swap	1.08%
Maturity period of interest rate derivative	2 years
ADS Mexicana [Member]
Debt Instrument [Line Items]
Outstanding letters of credit	$ 0	$ 6,900,000
Borrowing under line of credit facility	12,000,000
ADS Mexicana [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility outstanding	12,000,000
ADS [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility outstanding	325,000,000
Outstanding letters of credit	166,000,000		$ 205,100,000
Term Loan Facility [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility outstanding	$ 100,000,000
Term loan maturity date	2018-06
Frequency of periodic payment	Quarterly
Principal payment due	$ 2,500,000

Debt (Senior Notes Payable) - A

Debt (Senior Notes Payable) - Additional Information (Detail) - Senior Notes Payable [Member] - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Jul. 31, 2013	Dec. 31, 2009	Mar. 31, 2016
Debt Instrument [Line Items]
Quarterly interest payable		5.60%
Senior notes		$ 75,000
Principal payment		25,000
ADS [Member]
Debt Instrument [Line Items]
Senior Notes	$ 25,000	$ 100,000
Quarterly interest payable	4.05%
Principal payment	$ 25,000
Debt instrument leverage fee			The rate is subject to an additional 200 basis point excess leverage fee if calculated leverage ratio exceeds 3 to 1 at the end of a fiscal quarter.

Debt (Industrial Revenue Bonds)

Debt (Industrial Revenue Bonds) - Additional Information (Detail) - Industrial Revenue Bonds [Member] $ in Thousands	12 Months Ended
	Mar. 31, 2016USD ($)Facility	Mar. 31, 2015Bonds	Mar. 31, 2011Bonds
Debt Instrument [Line Items]
Number of production facilities | Facility	4
Letter of Credit [Member]
Debt Instrument [Line Items]
Debt instrument fee percentage	3.75%
Nontaxable Municipal Bonds [Member]
Debt Instrument [Line Items]
Number of bonds retired | Bonds		1	2
Average interest rate	4.27%
Collateral amount | $	$ 9,706

Debt (ADS Mexicana Scotia Bank

Debt (ADS Mexicana Scotia Bank Revolving Credit Facility ) - Additional Information (Detail) - USD ($)	Dec. 11, 2014	Mar. 31, 2016	Nov. 11, 2015
Debt Instrument [Line Items]
Outstanding letters of credit		$ 10,952,000
ADS Mexicana [Member]
Debt Instrument [Line Items]
Outstanding letters of credit		$ 0	$ 6,900,000
ADS Mexicana [Member] | Scotia Bank Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit maturity date	Dec. 11, 2017
Current borrowing capacity	$ 5,000,000
Outstanding letters of credit	$ 0

Debt (Debt Covenants and Divide

Debt (Debt Covenants and Dividend Restrictions) - Additional Information (Detail)		12 Months Ended
		Mar. 31, 2016USD ($)	Mar. 31, 2015USD ($)	Mar. 31, 2014USD ($)
Debt Instrument [Line Items]
Maximum capital distributions	[1]	$ 16,240,000	$ 7,869,000	$ 115,058,000
Debt Covenants [Member] | Maximum [Member]
Debt Instrument [Line Items]
Maximum capital distributions		$ 50,000,000
Leverage ratio		4
Debt Covenants [Member] | Minimum [Member]
Debt Instrument [Line Items]
Leverage ratio, minimum		3
Fixed charge coverage ratio		125.00%
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Debt - Maturities of Long-term

Debt - Maturities of Long-term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Debt Disclosure [Abstract]
2,017	$ 35,870
2,018	35,905
2,019	254,440
2,020	25,000
2,021	0
Thereafter	0
Total	$ 351,215	$ 399,895

Debt (Fiscal Year 2016 Amendmen

Debt (Fiscal Year 2016 Amendments and Consents Related to the Bank Loans and Senior Notes) - Additional Information (Detail)	Mar. 31, 2016$ / shares
Debt Disclosure [Abstract]
Cash dividends declared per share	$ 0.0195

Debt (Subsequent Event Related

Debt (Subsequent Event Related to the Bank Term Loans and Senior Notes) - Additional Information (Detail) - $ / shares	Oct. 31, 2016	Sep. 30, 2016	Jul. 31, 2016	Jun. 30, 2016	Mar. 31, 2016
Debt Instrument [Line Items]
Cash dividends declared per share					$ 0.0195
Subsequent Event [Member]
Debt Instrument [Line Items]
Cash dividends declared per share		$ 0.06		$ 0.06
Common Stock [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Cash dividends declared per share	$ 0.06		$ 0.06
Preferred Stock [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Cash dividends declared per share	$ 0.0195		$ 0.0195

Derivative Transactions - Summa

Derivative Transactions - Summary of Fair Values for Various Derivatives (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Interest Rate Swaps [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	$ (252)	$ (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		28
Diesel Fuel Option Collars and Swaps [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset	11
Diesel Fuel Option Collars and Swaps [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	(2,609)	(1,883)
Diesel Fuel Option Collars and Swaps [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	(6)	(958)
Propylene Swaps [Member] | Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)	$ (8,027)	(4,412)
Propylene Swaps [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
(Liability)		$ (730)

Derivative Transactions - Sched

Derivative Transactions - Schedule of Cash Settlements and Losses and (Gains) on Mark-to-Market Adjustments for Changes in Fair Value of Derivative Contracts (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Derivatives, Fair Value [Line Items]
Total derivative unrealized fair value gains and losses	[1]	$ 2,163	$ 7,746	$ (53)
Total realized gains and losses on derivatives		14,734	7,705	(84)
Total realized and unrealized losses (gains) included in Derivative losses (gains) and other expense (income), net		16,897	15,451	(137)
Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Total derivative unrealized fair value gains and losses		(513)	(236)	(81)
Foreign Exchange Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Total derivative unrealized fair value gains and losses		28	(28)
Total realized gains and losses on derivatives		(150)	5,636
Diesel Fuel Option Collars [Member]
Derivatives, Fair Value [Line Items]
Total derivative unrealized fair value gains and losses		(237)	2,841	55
Total realized gains and losses on derivatives		3,142	736
Propylene Swaps [Member]
Derivatives, Fair Value [Line Items]
Total derivative unrealized fair value gains and losses		2,885	5,169	(27)
Total realized gains and losses on derivatives		$ 11,742	$ 1,333	$ (84)
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Derivative Transactions - Sch98

Derivative Transactions - Schedule of Cash Settlements and Losses and (Gains) on Mark-to-Market Adjustments for Changes in Fair Value of Derivative Contracts (Parenthetical) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative losses (gains) and other expense (income), net	[1]	$ (16,575)	$ (14,370)	$ 1,177
Derivatives Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative losses (gains) and other expense (income), net		$ (322)	$ (1,081)	$ (1,040)
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Commitments and Contingencies (

Commitments and Contingencies (Purchase Commitments) - Additional Information (Detail) - Inventory [Member]	12 Months Ended
	Mar. 31, 2016USD ($)
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Total purchase commitment	$ 18,715,000
Purchase contracts period range, start	1 month
Purchase contracts period range, end	12 months

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands	Jan. 06, 2014	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Average fair value of shares allocated under ESOP, per share													$ 19.20		$ 16.61		$ 10.90
Compensation expense related to allocation of ESOP shares													$ 10,250,000		$ 12,144,000		$ 7,891,000
Dividend per share declared		$ 0.050	$ 0.050	$ 0.050	$ 0.050	$ 0.040	$ 0.040	$ 0	$ 0	$ 0.029	$ 0.029	$ 0.029	$ 0.20	[1]	$ 0.08	[1]	$ 1.68	[1]
ESOP directed to the Plan trustee		$ 2,531,000				$ 824,000							$ 2,531,000		$ 824,000
Other Liabilities [Member] | Executive Termination Payments [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Executive termination payment obligation		$ 4,005,000				$ 4,299,000							$ 4,005,000		$ 4,299,000
Redeemable Convertible Preferred Stock [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Fair value of shares allocated under ESOP, per share		$ 16.35				$ 22.05							$ 16.35		$ 22.05		$ 11.16
Employee stock ownership plan number of shares approved by the board of directors to the plan		542				737							542		737
Employee stock ownership plan allocated as shares		7,831				7,914							7,831		7,914
General and Administrative Expenses [Member] | Executive Termination Payments [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Compensation expense (benefit)													$ (294,000)		$ 328,000		$ 737,000
Special Dividend [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Compensation expense related to allocation of ESOP shares																	25,134,000
Dividend per share declared	$ 1.59
Dividend, total amount	$ 108,101,000
Special Dividend [Member] | Cost of Goods Sold [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Compensation expense related to allocation of ESOP shares																	13,896,000
Special Dividend [Member] | Selling Expenses [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Compensation expense related to allocation of ESOP shares																	4,550,000
Special Dividend [Member] | General and Administrative Expenses [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Compensation expense related to allocation of ESOP shares																	6,688,000
Dividend Declared [Member] | Redeemable Convertible Preferred Stock [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Employee stock ownership plan allocated as shares		8				6							8		6
Profit-Sharing Plan [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Contribution to the profit sharing plan													$ 0		$ 0		$ 0
Employee Stock Ownership Plan E S O P Plan [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Employee stock ownership plan participation description													Employees of ADS who have reached the age of 18 are generally eligible to participate in the Plan on March 31 after six months of service.
Employee stock ownership plan stock ownership description													Upon attainment of age 50 and seven years of participation in the Plan, a participant may elect to diversify specified percentages of the number of shares of ADS stock credited to the participant's ESOP stock account in compliance with applicable law.
Employee Stock Ownership Plan E S O P Plan [Member] | ADS [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Debt instrument, term													30 years
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended												12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014		Sep. 30, 2016	Jun. 30, 2016
Class of Stock [Line Items]
Common stock dividend per share		$ 0.050	$ 0.050	$ 0.050	$ 0.050	$ 0.040	$ 0.040	$ 0	$ 0		$ 0.029	$ 0.029	$ 0.029	$ 0.20	[1]	$ 0.08	[1]	$ 1.68	[1]
Total Cash Dividends Paid on Common Stock														$ 10,815		$ 4,270		$ 77,592
Purchase of common stock		0								80,000
Price per share purchased										$ 13.64
Price of shares purchased subsequent to IPO						$ 17.21										$ 17.21
Stock-based compensation expense														61
Adjustments to redeemable common stock fair value measurement																$ 18,256		(240)
Paid-in capital	[1]	$ 739,097				$ 723,495								$ 739,097		723,495
Cash dividend declared		$ 0.0195												$ 0.0195
IPO [Member]
Class of Stock [Line Items]
Mandatorily redeemable obligation		$ 18,236												$ 18,236
Paid-in capital		$ 1,493												$ 1,493
IPO [Member] | General and Administrative Expenses [Member]
Class of Stock [Line Items]
Stock-based compensation expense																1,011		2,579
Adjustments to redeemable common stock fair value measurement																$ (1,254)		$ (240)
First Quarter [Member]
Class of Stock [Line Items]
Dividend payable date														Jun. 30, 2016
Dividend payable, date of record														Jun. 16, 2016
Second Quarter [Member]
Class of Stock [Line Items]
Dividend payable date														Sep. 15, 2016
Dividend payable, date of record														Sep. 1, 2016
Subsequent Event [Member]
Class of Stock [Line Items]
Cash dividend declared																				$ 0.06	$ 0.06
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Mezzanine Equity (Redeemable Co

Mezzanine Equity (Redeemable Common Stock) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2014
Temporary Equity [Line Items]
Percentage of minority equity owners		15.00%
Classified in permanent equity as a result of the IPO		$ 240
Redeemable Common Stock [Member]
Temporary Equity [Line Items]
Classified in permanent equity as a result of the IPO	$ 10,101
IPO [Member]
Temporary Equity [Line Items]
Major share holders equity securities amount		$ 50,000

Mezzanine Equity (Redeemable103

Mezzanine Equity (Redeemable Convertible Preferred Stock) - Additional Information (Detail) - Redeemable Convertible Preferred Stock [Member] - $ / shares	3 Months Ended			12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Temporary Equity [Line Items]
Preferred stock conversion basis				Convertible at a rate of 0.7692 shares of common stock for each share of Redeemable convertible preferred stock.
Redeemable convertible preferred stock, per share				$ 0.781
Preferred stock, issue price, per share				$ 0.781
Preferred stock, number of shares issuable upon conversion				0.7692
Preferred stock, dividend rate, percentage				2.50%	2.50%	2.50%
Annual dividend record date				Mar. 15, 2016	Mar. 15, 2015	Mar. 15, 2014
Dividend per share	$ 0.0221	$ 0.0221	$ 0.0221
Dividend to be paid				Mar. 31, 2017

Mezzanine Equity - Schedule of

Mezzanine Equity - Schedule of Dividends Allocation (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Dividends Payable [Line Items]
Required dividend per share	$ 0.0195
Redeemable Convertible Preferred Stock [Member]
Dividends Payable [Line Items]
Total cash dividends	$ 1,293	$ 534
Total cash dividends	1,293	534
Total ESOP required dividends	$ 153	$ 154
Allocated shares	7,831	7,914
Required dividend per share	$ 0.0195	$ 0.0195
Redeemable Convertible Preferred Stock [Member] | Quarterly Cash Dividends [Member]
Dividends Payable [Line Items]
Total cash dividends	$ 1,272	$ 507
Total cash dividends	1,272	507
Redeemable Convertible Preferred Stock [Member] | Annual Cash Dividends [Member]
Dividends Payable [Line Items]
Total cash dividends	21	27
Dividend	132	127
Total cash dividends	$ 21	$ 27

Mezzanine Equity (Redeemable No

Mezzanine Equity (Redeemable Noncontrolling Interest in Subsidiaries ) - Additional Information (Detail) - BaySaver [Member]	Jul. 31, 2015	Jul. 17, 2015
Temporary Equity [Line Items]
Additionally acquired percentage of ownership in joint ventures	10.00%	10.00%
Percentage of voting interests acquired		65.00%

Stock Based Compensation - Stoc

Stock Based Compensation - Stock-based Compensation Expense (Benefit) Recognized in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ (5,868)	$ 24,247	$ 4,338
Cost of Goods Sold [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	(300)	1,100
Selling Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	(500)	1,500
General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ (5,068)	$ 21,647	$ 4,338

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock Options) - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Mar. 31, 2016USD ($)Installmentshares	Mar. 31, 2016USD ($)Installment$ / sharesshares	Mar. 31, 2015USD ($)$ / shares	Mar. 31, 2014USD ($)$ / shares	May 31, 2014shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, unrecognized compensation expense	$ 7,738,000	$ 7,738,000
Unrecognized compensation cost, weighted average service period for recognition		2 years 4 months 24 days
2000 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based awards, shares available for grant | shares	1,123,000	1,123,000
Fair value of option vested	$ 0	$ 0	$ 8,052,000	$ 1,212,000
Weighted average fair value of options granted | $ / shares		$ 0	$ 6.76	$ 6.38
Aggregate intrinsic value of options outstanding	4,888,000	$ 4,888,000
Aggregate intrinsic value of options exercisable	$ 4,283,000	4,283,000
Intrinsic value of options exercised		$ 3,702,000	$ 3,427,000	$ 3,951,000
2000 Stock Option Plan [Member] | Employee Stock Options [Member] | Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, expiration period		10 years
Stock awards, number of annual installments for vesting | Installment		3
2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, number of shares authorized for grant | shares					1,412,000
Stock based awards, shares available for grant | shares	1,412,000	1,412,000
Weighted average fair value of options granted | $ / shares		$ 0	$ 0	$ 6.22
Aggregate intrinsic value of options outstanding	$ 15,924,000	$ 15,924,000
Aggregate intrinsic value of options exercisable	$ 7,168,000	7,168,000
Intrinsic value of options exercised		0	$ 0	$ 0
Intrinsic value of options vested		3,584,000	7,177,000	0
2013 Stock Option Plan [Member] | Employee Stock Options [Member] | Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, expiration period	10 years
Stock awards, number of annual installments for vesting | Installment	5
2013 Stock Option Plan [Member] | Employee Stock Options [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, expiration period	10 years
Stock-based awards, vesting period	4 years
2000 and 2013 Stock Option Plan [Member] | Employee Stock Options [Member] | General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (benefit)		$ (6,784,000)	$ 21,666,000	$ 2,312,000

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Estimate Fair Value of Stock Options Granted (Detail) - $ / shares	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price		$ 17.21
Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.90%	0.50%	0.80%
Employee Stock Options [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price	$ 18.34	$ 14.33	$ 13.64
Expected stock price volatility	31.10%	28.20%	26.70%
Risk-free interest rate	0.50%	0.10%	0.10%
Weighted-average expected option life (years)	6 months	6 months	1 month 6 days
Employee Stock Options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price	$ 33.03	$ 29.94	$ 14.33
Expected stock price volatility	39.30%	51.00%	53.70%
Risk-free interest rate	1.50%	1.80%	2.40%
Weighted-average expected option life (years)	6 years 2 months 12 days	7 years 2 months 12 days	7 years 2 months 12 days

Stock-Based Compensation - S109

Stock-Based Compensation - Schedule of Stock Option Activity (Detail) - $ / shares shares in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
2000 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance	746
Number of Shares, Granted	0
Number of Shares, Exercised	(215)
Number of Shares, Forfeited	(16)
Number of Shares, Outstanding, Ending Balance	515	746
Number of Shares, Vested at end of year	439
Number of Shares, Unvested at end of year	76	78
Number of Shares, Vested and expected to vest at end of year	0
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 10.75
Weighted Average Exercise Price, Granted	0
Weighted Average Exercise Price, Exercised	8.31
Weighted Average Exercise Price, Forfeited	8.81
Weighted Average Exercise Price, Outstanding, Ending Balance	11.82	$ 10.75
Weighted Average Exercise Price, Vested at end of period	11.14
Weighted Average Exercise Price, Unvested at end of year	15.74
Weighted Average Exercise Price, Fair value of options granted during the year	$ 0
Weighted Average Remaining Contractual Term, Outstanding	4 years 2 months 12 days	4 years 1 month 6 days
Weighted Average Remaining Contractual Term, Vested at end of year	3 years 6 months
Weighted Average Remaining Contractual Term, Unvested at end of year	8 years 4 months 24 days
2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, Beginning Balance	1,911
Number of Shares, Granted	0
Number of Shares, Outstanding, Ending Balance	1,911	1,911
Number of Shares, Vested at end of year	816
Number of Shares, Unvested at end of year	1,095	1,503
Weighted Average Exercise Price, Outstanding, Beginning Balance	$ 13.64
Weighted Average Exercise Price, Granted	0
Weighted Average Exercise Price, Outstanding, Ending Balance	13.64	$ 13.64
Weighted Average Exercise Price, Vested at end of period	13.64
Weighted Average Exercise Price, Unvested at end of year	13.64
Weighted Average Exercise Price, Fair value of options granted during the year	$ 0
Weighted Average Remaining Contractual Term, Outstanding	7 years 5 months 1 day	8 years 5 months 1 day
Weighted Average Remaining Contractual Term, Vested at end of year	7 years 5 months 1 day
Weighted Average Remaining Contractual Term, Unvested at end of year	7 years 5 months 1 day

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Unvested Stock Option Grants (Detail) - $ / shares	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
2000 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested at beginning of year	78,000
Number of Shares, Granted	0
Number of Shares, Forfeitures	(2,000)
Number of Shares, Unvested at end of year	76,000	78,000
Weighted Average Grant Date Fair Value, Unvested at beginning of year	$ 6.76
Weighted Average Grant Date Fair Value, Granted	0	$ 6.76	$ 6.38
Weighted Average Grant Date Fair Value, Forfeitures	6.76
Weighted Average Grant Date Fair Value, Unvested at end of year	$ 6.76	$ 6.76
2013 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested at beginning of year	1,503,000
Number of Shares, Granted	0
Number of Shares, Vested	(408,000)
Number of Shares, Unvested at end of year	1,095,000	1,503,000
Weighted Average Grant Date Fair Value, Unvested at beginning of year	$ 6.22
Weighted Average Grant Date Fair Value, Granted	0	$ 0	$ 6.22
Weighted Average Grant Date Fair Value, Vested	6.22
Weighted Average Grant Date Fair Value, Unvested at end of year	$ 6.22	$ 6.22
Non Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted	0	48,000
Number of Shares, Vested		(48,000)
Weighted Average Grant Date Fair Value, Granted		$ 18.88
Weighted Average Grant Date Fair Value, Vested		$ 18.88

Stock-Based Compensation (Restr

Stock-Based Compensation (Restricted Stock) - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Paid-in capital	[1]	$ 739,097	$ 723,495
Share-based compensation expense		$ 61
Unrecognized compensation cost, weighted average service period for recognition		2 years 4 months 24 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, vesting period		5 years
Paid-in capital		$ 4,762
Stock based awards, shares available for grant		346
Unrecognized compensation expense		$ 1,070
Unrecognized compensation cost, weighted average service period for recognition		1 year 7 months 6 days
Weighted average fair value of options granted		$ 0	$ 0	$ 13.64
Intrinsic value of options vested		$ 1,119	$ 1,926	$ 1,573
Restricted Stock [Member] | General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		916	1,681	2,026
Restricted Stock [Member] | Vesting Immediately [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 0	$ 0	$ 385
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Stock-Based Compensation - S112

Stock-Based Compensation - Summary of Unvested Restricted Stock Grants (Detail) - Restricted Stock [Member] shares in Thousands	12 Months Ended
	Mar. 31, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested at beginning of year | shares	183
Number of shares, Granted | shares	0
Number of Shares, Vested | shares	(69)
Number of Shares, Forfeited | shares	(2)
Number of Shares, Unvested at end of year | shares	112
Weighted Average Grant Date Fair Value, Unvested at beginning of year | $ / shares	$ 12.65
Weighted Average Grant Date Fair Value, Granted | $ / shares	0
Weighted Average Grant Date Fair Value, Vested | $ / shares	12.20
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	12.12
Weighted Average Grant Date Fair Value, Unvested at end of year | $ / shares	$ 12.97

Stock-Based Compensation (Award

Stock-Based Compensation (Awards to Be Issued) - Additional Information (Detail) $ in Thousands	12 Months Ended
	Mar. 31, 2016USD ($)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Restricted stock and options with a fair value at the date of issuance	$ 487
Stock-based compensation expense	$ 61

Stock-Based Compensation (Non-E

Stock-Based Compensation (Non-Employee Director Compensation) - Additional Information (Detail)	Sep. 06, 2014Directors$ / sharesshares	Mar. 31, 2016USD ($)shares	Mar. 31, 2015USD ($)shares	Jun. 18, 2014shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense | $		$ 61,000
Non Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based awards, number of shares authorized for grant				282,000
Stock-based awards, vesting period from the date of issuance		1 year
Number of shares, Granted	48,000
Number of directors to whom shares were granted | Directors	7
Fair market value of the granted shares | $ / shares	$ 18.88
Vesting date		Feb. 27, 2015
Stock-based compensation expense | $		$ 0	$ 900,000
Shares available for grant		234,000	234,000
Unrecognized compensation expense | $		$ 0	$ 0
Number of Shares, Granted		0	48,000

Income Taxes - Income Before In

Income Taxes - Income Before Income Tax (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
United States		$ 45,159	$ (4,381)	$ 17,841
Foreign		14,140	9,304	12,856
Income before income taxes	[1]	$ 59,299	$ 4,923	$ 30,697
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Expense (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Current:
Federal		$ 6,889	$ 20,592	$ 21,476
State and local		2,126	3,655	3,857
Foreign		3,791	831	1,126
Total current tax expense		12,806	25,078	26,459
Deferred:
Federal		10,019	(16,270)	(5,034)
State and local		1,431	(2,626)	(2,687)
Foreign		(758)	102	899
Total deferred tax expense (benefit)		10,692	(18,794)	(6,822)
Total Income tax expense	[1]	$ 23,498	$ 6,284	$ 19,637
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Effective Tax Rate and Statutory Federal Income Tax Rate (Detail)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
Redeemable convertible preferred stock dividend	(0.80%)	(3.80%)	(11.40%)
ESOP stock appreciation	5.80%	82.30%	8.40%
ESOP compensation for Special Dividend on unallocated shares		0.20%	25.80%
Effect of tax rate of foreign subsidiaries	0.80%	(9.30%)	(3.00%)
State and local taxes-net of federal income tax benefit	4.30%	19.70%	1.20%
Stock-based compensation	(1.80%)	64.70%	1.20%
Uncertain tax position change	(3.60%)	(35.20%)	6.80%
Qualified production activity credit	(0.90%)	(37.10%)	(5.60%)
Cumulative adjustments to deferred taxes			(0.70%)
Executive repurchase agreement		720.00%	230.00%
Other	0.80%	3.90%	4.00%
Effective rate	39.60%	127.60%	64.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2016	Mar. 31, 2013
Income Tax Disclosure [Abstract]
ESOP compensation for Special Dividend on unallocated shares	0.20%	25.80%
Undistributed earnings of foreign subsidiaries			$ 30,228
Unrecognized tax benefit that would decrease income tax expense	$ 10,452	$ 12,855	7,998	$ 10,668
Decrease in unrecognized tax benefit related to income tax expense			7,998
Accrued interest and penalties related to unrecognized tax benefits	$ 460		$ 2,689

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Deferred tax assets:
State income taxes	$ 1,927	$ 1,526
ESOP loan repayment	1,390	1,421
Receivable and other allowances	2,150	2,534
Derivatives	4,397	3,533
Inventory	1,433	11,271
Non-Qualified stock options	4,309	6,478
Bonus accrual	1,852	1,736
Accrued rebates	1,378	1,378
Worker's compensation	1,390	667
Contingent consideration	533	247
Purchase card accrual	232	232
Foreign NOL's	1,507	1,504
Other	2,259	1,039
Total deferred tax assets	24,757	33,566
Less: valuation allowance	(1,507)	(1,504)
Total net deferred tax assets	23,250	32,062
Deferred tax liabilities:
Intangible assets	8,882	10,983
Property, plant and equipment	52,115	51,440
Leases	6,059	4,035
Capitalized software costs	2,935	3,159
Goodwill	3,643	2,735
Other	1,867	1,486
Total deferred tax liabilities	75,501	73,838
Net deferred tax liability	$ 52,251	$ 41,776

Income Taxes - Net Deferred Tax

Income Taxes - Net Deferred Tax Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Net current deferred tax assets		$ 11,701	$ 21,056
Net non-current deferred tax liabilities	[1]	$ 63,952	$ 62,832
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Balance as beginning of year	$ 10,452	$ 12,855	$ 10,668
Tax positions taken in current year	917		2,954
Decreases in tax positions for prior years	(599)	(672)	(47)
Increases in tax positions for prior years	358	336	825
Settlements	0	0	0
Lapse of statute of limitations	(3,130)	(2,067)	(1,545)
Balance at end of year	$ 7,998	$ 10,452	$ 12,855

Net Income (Loss) Per Share - S

Net Income (Loss) Per Share - Summary of Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
NET INCOME (LOSS) PER SHARE - BASIC:
Net income attributable to ADS		$ (12,119)	$ 13,131	$ 12,346	$ 11,694	$ (24,640)	$ (4,641)	$ 15,928	$ 5,526	$ 25,052	[1]	$ (7,827)	[1]	$ 4,381	[1]
Change in fair value of Redeemable convertible preferred stock												(11,054)		(3,979)
Accretion of Redeemable noncontrolling interest in subsidiaries	[1]									(932)
Dividends paid to Redeemable convertible preferred stockholders	[1]									(1,425)		(661)		(10,139)
Dividends paid to unvested restricted stockholders	[1]									(24)		(11)		(25)
Net income (loss) available to common stockholders and participating securities	[1]									22,671		(19,553)		(9,762)
Undistributed income allocated to participating securities	[1]									(1,270)
Net income (loss) available to common stockholders - Basic	[1]									$ 21,401		$ (19,553)		$ (9,762)
Weighted average number of common shares outstanding - Basic	[1]									53,978		51,344		47,277
Net income (loss) per common share - Basic		$ (0.24)	$ 0.21	$ 0.20	$ 0.19	$ (0.47)	$ (0.09)	$ 0.40	$ (0.27)	$ 0.40	[1]	$ (0.38)	[1]	$ (0.21)	[1]
NET INCOME (LOSS) PER SHARE - DILUTED:
Net income (loss) available to common stockholders - Diluted										$ 21,401		$ (19,553)		$ (9,762)
Weighted average number of common shares outstanding - Basic	[1]									53,978		51,344		47,277
Assumed exercise of stock options										1,198
Weighted average number of common shares outstanding - Diluted	[1]									55,176		51,344		47,277
Net income (loss) per common share - Diluted		$ (0.24)	$ 0.21	$ 0.19	$ 0.19	$ (0.47)	$ (0.09)	$ 0.40	$ (0.27)	$ 0.39	[1]	$ (0.38)	[1]	$ (0.21)	[1]
Potentially dilutive securities excluded as anti-dilutive										6,383		5,395		185
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Business Segment Information -

Business Segment Information - Additional Information (Detail)	12 Months Ended
	Mar. 31, 2016Segment
Segment Reporting [Abstract]
Number of reportable segments	2
Number of operating segments	2

Business Segment Information124

Business Segment Information - Schedule of Revenue from Reportable Segments by Product Type (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Segment Reporting Information [Line Items]
Total Net sales	$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434	$ 1,290,678	[1]	$ 1,180,073	[1]	$ 1,067,780	[1]
Domestic [Member]
Segment Reporting Information [Line Items]
Total Net sales									1,113,796		1,027,933		935,292
Domestic [Member] | Pipe [Member]
Segment Reporting Information [Line Items]
Total Net sales									812,071		771,214		700,270
Domestic [Member] | Allied Products [Member]
Segment Reporting Information [Line Items]
Total Net sales									301,725		256,719		235,022
International Segment [Member]
Segment Reporting Information [Line Items]
Total Net sales									176,882		152,140		132,488
International Segment [Member] | Pipe [Member]
Segment Reporting Information [Line Items]
Total Net sales									139,731		125,407		107,078
International Segment [Member] | Allied Products [Member]
Segment Reporting Information [Line Items]
Total Net sales									$ 37,151		$ 26,733		$ 25,410
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Business Segment Information125

Business Segment Information - Schedule of Additional Financial Information Attributable to Reportable Segments (Detail) - USD ($) $ in Thousands		3 Months Ended										12 Months Ended
		Mar. 31, 2016		Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015		Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Segment Reporting Information [Line Items]
Gross profit		$ 49,504		$ 74,842	$ 86,529	$ 74,477	$ 24,384		$ 49,287	$ 70,137	$ 61,305	$ 285,352	[1]	$ 205,113	[1]	$ 192,548	[1]
Segment Adjusted EBITDA												187,340		143,877		151,333
Interest expense	[1]											18,460		19,368		18,807
Income tax expense	[1]											23,498		6,284		19,637
Depreciation and amortization	[1]											71,009		65,472		63,674
Equity in net (loss) income of unconsolidated affiliates	[1]											(5,234)		(2,335)		(3,086)
Capital expenditures	[1]											44,942		32,080		40,933
Investments in unconsolidated affiliates		13,188					25,038					13,188		25,038		23,624
Total identifiable assets		1,040,447	[1]				1,038,124	[1]				1,040,447	[1]	1,038,124	[1]	983,133
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total identifiable assets		(59,784)					(69,192)					(59,784)		(69,192)		(13,308)
Domestic [Member]
Segment Reporting Information [Line Items]
Gross profit												249,817		179,470		164,693
Segment Adjusted EBITDA												162,875		128,973		132,504
Interest expense												17,908		19,308		18,659
Income tax expense												20,465		5,351		17,612
Depreciation and amortization												62,625		59,397		57,834
Equity in net (loss) income of unconsolidated affiliates												181		289		417
Capital expenditures												37,242		29,345		37,095
Investments in unconsolidated affiliates		2,932					7,957					2,932		7,957		5,202
Domestic [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total identifiable assets		952,417					938,996					952,417		938,996		883,327
International Segment [Member]
Segment Reporting Information [Line Items]
Gross profit												35,535		25,643		27,855
Segment Adjusted EBITDA												24,465		14,904		18,829
Interest expense												552		60		148
Income tax expense												3,033		933		2,025
Depreciation and amortization												8,384		6,075		5,840
Equity in net (loss) income of unconsolidated affiliates												(5,415)		(2,624)		(3,503)
Capital expenditures												7,700		2,735		3,838
Investments in unconsolidated affiliates		10,256					17,081					10,256		17,081		18,422
International Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total identifiable assets		$ 147,814					$ 168,320					$ 147,814		$ 168,320		$ 113,114
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Business Segment Information126

Business Segment Information - Schedule of Reconciliation of Segment Adjusted EBITDA to Net Income (Detail) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income (loss) attributable to ADS		$ (12,119)	$ 13,131	$ 12,346	$ 11,694	$ (24,640)	$ (4,641)	$ 15,928	$ 5,526	$ 25,052	[1]	$ (7,827)	[1]	$ 4,381	[1]
Interest expense	[1]									18,460		19,368		18,807
Income tax expense	[1]									23,498		6,284		19,637
Derivative fair value adjustments	[1]									2,163		7,746		(53)
Loss (gain) on sale of business or disposal of assets	[1]									812		362		(2,863)
ESOP deferred stock-based compensation										10,250		12,144		7,891
Domestic [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income (loss) attributable to ADS										24,875		(9,443)		646
Depreciation and amortization										62,625		59,397		57,834
Interest expense										17,908		19,308		18,659
Income tax expense										20,465		5,351		17,612
Segment EBITDA										125,873		74,613		94,751
Derivative fair value adjustments										2,139		7,774		(53)
Foreign currency transaction losses (gains)												5,636
Loss (gain) on sale of business or disposal of assets										892		257		(2,817)
Unconsolidated affiliates interest, taxes, depreciation and amortization										1,052		1,341		156
Special Dividend compensation														25,134
Contingent consideration remeasurement										371		174		738
Stock-based compensation expense (benefit)										(5,868)		24,247		4,338
ESOP deferred stock-based compensation										10,250		12,144		7,891
Expense (benefit) related to executive termination payments										(294)		328		737
Expense related to executive stock repurchase agreements												1,011		69
Loss related to BaySaver step acquisition										490
Restatement costs										27,970
Transaction costs												1,448		1,560
Segment Adjusted EBITDA										162,875		128,973		132,504
International Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income (loss) attributable to ADS										5,692		5,747		7,328
Depreciation and amortization										8,384		6,075		5,840
Interest expense										552		60		148
Income tax expense										3,033		933		2,025
Segment EBITDA										17,661		12,815		15,341
Derivative fair value adjustments										24		(28)
Foreign currency transaction losses (gains)										697		(232)		845
Loss (gain) on sale of business or disposal of assets										(80)		105		(46)
Unconsolidated affiliates interest, taxes, depreciation and amortization										2,163		2,244		2,689
Impairment on investment in unconsolidated affiliate										4,000
Segment Adjusted EBITDA										$ 24,465		$ 14,904		$ 18,829
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Business Segment Information127

Business Segment Information - Schedule of Reconciliation of Segment Adjusted EBITDA to Net Income (Parenthetical) (Detail) $ in Thousands	12 Months Ended
	Mar. 31, 2016USD ($)
South American Joint Venture [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Asset impairment charges	$ 1,022

Business Segment Information128

Business Segment Information - Net Sales and Long-Lived Asset by Geographic Location (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434	$ 1,290,678	[1]	$ 1,180,073	[1]	$ 1,067,780	[1]
Long-lived Assets	405,972				402,959				405,972		402,959
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									1,274,700		1,161,909		1,046,595
Long-lived Assets	395,716				385,878				395,716		385,878
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									15,978		18,164		$ 21,185
Long-lived Assets	$ 10,256				$ 17,081				$ 10,256		$ 17,081
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Supplemental Disclosures of 129

Supplemental Disclosures of Cash Flow Information - Increase (Decrease) in Cash Due to Changes Working Capital (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Supplemental Cash Flow Elements [Abstract]
Receivables		$ (37,788)	$ (10,351)	$ (5,876)
Inventories		28,330	(7,663)	(37,595)
Prepaid expenses and other current assets		646	1,953	(3,298)
Accounts payable, accrued expenses, and other liabilities		10,156	(767)	10,371
Total	[1]	$ 1,344	$ (16,828)	$ (36,398)
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Supplemental Disclosures of 130

Supplemental Disclosures of Cash Flow Information - Supplemental Disclosures Cash Flow Information (Detail) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Other Significant Noncash Transactions [Line Items]
Interest		$ 18,352	$ 18,709	$ 17,267
Income taxes		32,175	28,503	23,701
Redeemable convertible preferred stock dividend		132	127	118
Redemption of common stock to exercise stock options			93	1,187
Receivable recorded to exercise stock options				76
Purchases of plant, property, and equipment included in accounts payable		1,165	124	682
ESOP distributions in common stock		10,250	6,133
Inventory contributed for Investment in unconsolidated affiliate	[1]	230,466	260,550
Assets acquired and obligation incurred under capital lease		34,207	24,047	24,902
Lease obligation retired upon disposition of leased assets		134	779	3,708
Reclassification of liability-classified stock options and restricted stock to equity		3,702	12,141	1,733
Reclassification of stock repurchase agreement liability and mezzanine equity to equity			19,729
Accretion of stock repurchase agreement mezzanine equity recorded to retained earnings				240
Reclassification of deferred public offering cost asset upon initial public offering			456
Miscellaneous [Member]
Other Significant Noncash Transactions [Line Items]
Receivable recorded for sale of businesses		$ 150	$ 600	1,241
Investments in Majority-owned Subsidiaries [Member]
Other Significant Noncash Transactions [Line Items]
Inventory contributed for Investment in unconsolidated affiliate				$ 1,285
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Restatement of Previously Is131

Restatement of Previously Issued Financial Statements - Schedule of Adjustments to Consolidated Statements of Operations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended											12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434				$ 1,290,678	[1]	$ 1,180,073	[1]	$ 1,067,780	[1]
Cost of goods sold	[1]												1,005,326		974,960		875,232
Gross profit		49,504	74,842	86,529	74,477	24,384	49,287	70,137	61,305				285,352	[1]	205,113	[1]	192,548	[1]
Operating expenses:
Selling	[1]												88,478		80,481		74,042
General and administrative	[1]												92,504		75,855		62,897
Loss (gain) on disposal of assets or businesses	[1]												812		362		(2,863)
Intangible amortization	[1]												9,224		9,754		10,145
Income from operations	[1]												94,334		38,661		48,327
Other expense:
Interest expense	[1]												18,460		19,368		18,807
Derivative losses (gains) and other expense (income), net	[1]												16,575		14,370		(1,177)
Income before income taxes	[1]												59,299		4,923		30,697
Income tax expense	[1]												23,498		6,284		19,637
Equity in net loss of unconsolidated affiliates	[1]												5,234		2,335		3,086
Net income		(11,085)	12,942	15,928	12,782	(24,909)	(3,269)	18,081	6,401				30,567	[1]	(3,696)	[1]	7,974	[1]
Less net income attributable to noncontrolling interest	[1]												5,515		4,131		3,593
Net income (loss) attributable to ADS		$ (12,119)	$ 13,131	$ 12,346	$ 11,694	$ (24,640)	$ (4,641)	$ 15,928	$ 5,526				25,052	[1]	(7,827)	[1]	4,381	[1]
Accretion of Redeemable noncontrolling interest	[1]												(932)
Change in fair value of Redeemable convertible preferred stock	[1]														(11,054)		(3,979)
Dividends to redeemable convertible preferred stockholders	[1]												(1,425)		(661)		(10,139)
Dividends paid to unvested restricted stockholders	[1]												(24)		(11)		(25)
Net income (loss) available to common stockholders and participating securities	[1]												22,671		(19,553)		(9,762)
Undistributed income allocated to participating securities	[1]												(1,270)
Net income available to common stockholders	[1]												$ 21,401		$ (19,553)		$ (9,762)
Weighted average common shares outstanding:
Basic	[1]												53,978		51,344		47,277
Diluted	[1]												55,176		51,344		47,277
Net income (loss) per share available to common stockholders:
Basic		$ (0.24)	$ 0.21	$ 0.20	$ 0.19	$ (0.47)	$ (0.09)	$ 0.40	$ (0.27)				$ 0.40	[1]	$ (0.38)	[1]	$ (0.21)	[1]
Diluted		(0.24)	0.21	0.19	0.19	(0.47)	(0.09)	0.40	(0.27)				0.39	[1]	(0.38)	[1]	(0.21)	[1]
Cash dividends declared per share		$ 0.050	$ 0.050	$ 0.050	$ 0.050	$ 0.040	$ 0.040	$ 0	$ 0	$ 0.029	$ 0.029	$ 0.029	$ 0.20	[1]	$ 0.08	[1]	$ 1.68	[1]
As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales		$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434				$ 1,290,678		$ 1,180,073		$ 1,067,780
Cost of goods sold													1,005,626		973,960		873,810
Gross profit		49,404	74,642	86,529	74,477	26,314	49,178	69,763	60,858				285,052		206,113		193,970
Operating expenses:
Selling													88,978		78,981		74,042
General and administrative													101,445		58,749		59,761
Loss (gain) on disposal of assets or businesses													812		362		(2,863)
Intangible amortization													9,224		9,754		10,145
Income from operations													84,593		58,267		52,885
Other expense:
Interest expense													18,460		19,368		18,807
Derivative losses (gains) and other expense (income), net													16,575		14,370		(1,177)
Income before income taxes													49,558		24,529		35,255
Income tax expense													20,855		9,443		19,949
Equity in net loss of unconsolidated affiliates													5,234		2,335		3,086
Net income		(14,057)	8,443	16,171	12,912	(13,734)	(1,953)	18,997	9,441				23,469		12,751		12,220
Less net income attributable to noncontrolling interest													5,515		4,131		3,593
Net income (loss) attributable to ADS		$ (15,091)	$ 8,632	$ 12,589	$ 11,824	$ (13,465)	$ (3,325)	$ 16,844	$ 8,566				17,954		8,620		8,627
Accretion of Redeemable noncontrolling interest													(932)
Change in fair value of Redeemable convertible preferred stock															(11,054)		(3,979)
Dividends to redeemable convertible preferred stockholders													(1,425)		(661)		(10,139)
Dividends paid to unvested restricted stockholders													(24)		(11)		(418)
Net income (loss) available to common stockholders and participating securities													15,573		(3,106)		(5,909)
Undistributed income allocated to participating securities													(511)
Net income available to common stockholders													$ 15,062		$ (3,106)		$ (5,909)
Weighted average common shares outstanding:
Basic													53,978		51,344		47,277
Diluted													55,052		51,344		47,277
Net income (loss) per share available to common stockholders:
Basic		$ (0.29)	$ 0.14	$ 0.20	$ 0.20	$ (0.26)	$ (0.07)	$ 0.41	$ (0.21)				$ 0.28		$ (0.06)		$ (0.12)
Diluted		$ (0.29)	$ 0.13	$ 0.20	$ 0.19	$ (0.26)	$ (0.07)	$ 0.41	$ (0.21)				0.27		(0.06)		(0.12)
Cash dividends declared per share													$ 0.20		$ 0.08		$ 1.68
Revision Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of goods sold															$ (100)		$ 1,422
Gross profit															100		(1,422)
Operating expenses:
Income from operations															100		(1,422)
Other expense:
Income before income taxes															100		(1,422)
Income tax expense															40		(527)
Net income															60		(895)
Net income (loss) attributable to ADS															60		(895)
Net income (loss) available to common stockholders and participating securities															60		(895)
Net income available to common stockholders															$ 60		$ (895)
Net income (loss) per share available to common stockholders:
Basic															$ 0		$ (0.02)
Diluted															$ 0		$ (0.02)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of goods sold													$ (300)		$ 1,100
Gross profit													300		(1,100)
Operating expenses:
Selling													(500)		1,500
General and administrative													(8,941)		17,106		$ 3,136
Income from operations													9,741		(19,706)		(3,136)
Other expense:
Income before income taxes													9,741		(19,706)		(3,136)
Income tax expense													2,643		(3,199)		215
Net income													7,098		(16,507)		(3,351)
Net income (loss) attributable to ADS													7,098		(16,507)		(3,351)
Dividends paid to unvested restricted stockholders																	393
Net income (loss) available to common stockholders and participating securities													7,098		(16,507)		(2,958)
Undistributed income allocated to participating securities													(759)
Net income available to common stockholders													$ 6,339		$ (16,507)		$ (2,958)
Weighted average common shares outstanding:
Diluted													124
Net income (loss) per share available to common stockholders:
Basic													$ 0.12		$ (0.32)		$ (0.07)
Diluted													$ 0.12		$ (0.32)		$ (0.07)
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Restatement of Previously Is132

Restatement of Previously Issued Financial Statements - Schedule of Adjustments to Consolidated Statements of Operations (Parenthetical) (Detail) - General and Administrative Expenses [Member] - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stock-based compensation expense (benefit)	$ (8,647)	$ 15,767	$ (180)
Executive Termination Payments [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stock-based compensation expense (benefit)	(294)	328	737
Executive Termination Payments [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stock-based compensation expense (benefit)		328
Expense (benefit) related to executive termination payments	$ (294)		737
Executive Stock Repurchase Agreements [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stock-based compensation expense (benefit)		$ 1,011
Expense related to executive stock repurchase agreements			$ 2,579

Restatement of Previously Is133

Restatement of Previously Issued Financial Statements - Schedule of Adjustments to Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands		Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014	Mar. 31, 2013
Assets
Cash	[1]	$ 6,555		$ 3,623		$ 3,931	$ 1,361
Receivables, net	[1]	186,883		154,294
Inventories	[1]	230,466		260,550
Deferred income taxes and other current assets	[1]	15,658		25,943
Property, plant and equipment, net	[1]	391,744		375,813
Goodwill		100,885	[1]	98,679	[1]	88,017
Intangible assets, net	[1]	59,869		58,055
Other assets	[1]	48,387		61,167
Total assets		1,040,447	[1]	1,038,124	[1]	983,133
LIABILITIES, MEZZANINE EQUITY AND ST
Current maturities of debt obligations	[1]	35,870		9,580
Current maturities of capital lease obligations	[1]	19,231		15,731
Accounts payable	[1]	119,606		111,893
Current portion of liability-classified stock-based awards	[1]	10,118		17,611
Other accrued liabilities	[1]	65,099		54,349
Accrued income taxes	[1]	2,260		6,299
Long-term debt obligation	[1]	315,345		390,315
Long-term capital lease obligation	[1]	56,809		45,503
Deferred tax liabilities	[1]	63,952		62,832
Other liabilities	[1]	37,921		38,865
Total liabilities	[1]	726,211		752,978
Mezzanine equity	[1]	111,747		108,021
Common stock	[1]	12,393		12,393
Paid-in capital	[1]	739,097		723,495
Common stock in treasury, at cost	[1]	(440,995)		(445,065)
Accumulated other comprehensive loss	[1]	(21,261)		(15,521)
Retained earnings (deficit)	[1]	(101,778)		(114,590)
Noncontrolling interest in subsidiaries	[1]	15,033		16,413
Total liabilities, mezzanine equity and stockholders' equity	[1]	1,040,447		1,038,124
As Reported [Member]
Assets
Cash		6,555		3,623		$ 3,931	$ 1,361
Receivables, net		186,883		154,294
Inventories		230,466		269,842
Deferred income taxes and other current assets		12,859		18,972
Property, plant and equipment, net		391,744		377,067
Goodwill		100,885		98,679
Intangible assets, net		59,869		58,055
Other assets		48,387		61,167
Total assets		1,037,648		1,041,699
LIABILITIES, MEZZANINE EQUITY AND ST
Current maturities of debt obligations		35,870		9,580
Current maturities of capital lease obligations		19,231		15,731
Accounts payable		119,606		111,893
Other accrued liabilities		65,099		54,349
Accrued income taxes		1,822		6,041
Long-term debt obligation		315,345		390,315
Long-term capital lease obligation		56,809		45,503
Deferred tax liabilities		63,683		65,088
Other liabilities		30,803		28,602
Total liabilities		708,268		727,102
Mezzanine equity		111,747		108,021
Common stock		12,393		12,393
Paid-in capital		715,859		700,977
Common stock in treasury, at cost		(440,995)		(445,065)
Accumulated other comprehensive loss		(21,261)		(15,521)
Retained earnings (deficit)		(63,396)		(62,621)
Noncontrolling interest in subsidiaries		15,033		16,413
Total liabilities, mezzanine equity and stockholders' equity		1,037,648		1,041,699
Revision Adjustment [Member]
Assets
Inventories				(9,292)
Deferred income taxes and other current assets				3,532
Property, plant and equipment, net				(1,254)
Total assets				(7,014)
LIABILITIES, MEZZANINE EQUITY AND ST
Accrued income taxes				11
Deferred tax liabilities				(492)
Other liabilities				(44)
Total liabilities				(525)
Retained earnings (deficit)				(6,489)
Total liabilities, mezzanine equity and stockholders' equity				(7,014)
Restatement Adjustment [Member]
Assets
Deferred income taxes and other current assets		2,799		3,439
Total assets		2,799		3,439
LIABILITIES, MEZZANINE EQUITY AND ST
Current portion of liability-classified stock-based awards		10,118		17,611
Accrued income taxes		438		247
Deferred tax liabilities		269		(1,764)
Other liabilities		7,118		10,307
Total liabilities		17,943		26,401
Paid-in capital		23,238		22,518
Retained earnings (deficit)		(38,382)		(45,480)
Total liabilities, mezzanine equity and stockholders' equity		$ 2,799		$ 3,439
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Restatement of Previously Is134

Restatement of Previously Issued Financial Statements - Cumulative Effect of Prior Period Adjustments (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments				$ (32,447)	$ (32,447)
Stockholders' equity (deficit), March 31, 2013	[1]	$ 202,489	$ 177,125	(453,039)	(332,370)
As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					(299,923)
Revision Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(5,654)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(26,793)
Common Stock [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013	[1]	12,393	12,393	11,957	11,957
Common Stock [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					11,957
Paid-In Capital [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments				(155)	(155)
Stockholders' equity (deficit), March 31, 2013	[1]	739,097	723,495	8,369	39,871
Paid-In Capital [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					40,026
Paid-In Capital [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(155)
Common Stock in Treasury [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013	[1]	(440,995)	(445,065)	(448,439)	(448,571)
Common Stock in Treasury [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					(448,571)
Accumulated Other Comprehensive Loss [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013	[1]	(21,261)	(15,521)	(6,830)	(1,081)
Accumulated Other Comprehensive Loss [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					(1,081)
Retained Earnings (Deficit) [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments				(32,292)	(32,292)
Stockholders' equity (deficit), March 31, 2013	[1]	(101,778)	(114,590)	(36,680)	46,910
Retained Earnings (Deficit) [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					79,202
Retained Earnings (Deficit) [Member] | Revision Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(5,654)
Retained Earnings (Deficit) [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(26,638)
Total ADS Stockholders' Equity [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments				(32,447)	(32,447)
Stockholders' equity (deficit), March 31, 2013	[1]	187,456	160,712	(471,623)	(350,914)
Total ADS Stockholders' Equity [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					(318,467)
Total ADS Stockholders' Equity [Member] | Revision Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(5,654)
Total ADS Stockholders' Equity [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cumulative revision and restatement adjustments					(26,793)
Non-controlling Interest in Subsidiaries [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013	[1]	$ 15,033	$ 16,413	$ 18,584	18,544
Non-controlling Interest in Subsidiaries [Member] | As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity (deficit), March 31, 2013					$ 18,544
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Restatement of Previously Is135

Restatement of Previously Issued Financial Statements - Schedule of Adjustments to Consolidated Statement of Cash Flows (Detail) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Cash Flows from Operating Activities
Net income		$ (11,085)	$ 12,942	$ 15,928	$ 12,782	$ (24,909)	$ (3,269)	$ 18,081	$ 6,401	$ 30,567	[1]	$ (3,696)	[1]	$ 7,974	[1]
ESOP, stock repurchase agreement and stock-based compensation	[1]									4,382		37,402		37,432
All other adjustments to reconcile net income to net cash provided by operating activities										100,393		40,673		27,004
Net cash provided by operating activities	[1]									135,342		74,379		72,410
Cash Flows from Investing Activities
Net cash used in investing activities	[1]									(49,018)		(76,093)		(38,712)
Cash Flows from Financing Activities
Net cash provided by financing activities	[1]									(82,964)		1,791		(31,109)
Effect of exchange rate changes on cash	[1]									(428)		(385)		(19)
Net change in cash	[1]									2,932		(308)		2,570
Cash at beginning of year	[1]				3,623				3,931	3,623		3,931		1,361
Cash at end of year	[1]	6,555				3,623				6,555		3,623		3,931
As Reported [Member]
Cash Flows from Operating Activities
Net income		(14,057)	$ 8,443	$ 16,171	12,912	(13,734)	$ (1,953)	$ 18,997	9,441	23,469		12,751		12,220
ESOP, stock repurchase agreement and stock-based compensation										13,829		18,024		35,033
All other adjustments to reconcile net income to net cash provided by operating activities										98,044		43,604		25,157
Net cash provided by operating activities										135,342		74,379		72,410
Cash Flows from Investing Activities
Net cash used in investing activities										(49,018)		(76,093)		(38,712)
Cash Flows from Financing Activities
Net cash provided by financing activities										(82,964)		1,791		(31,109)
Effect of exchange rate changes on cash										(428)		(385)		(19)
Net change in cash										2,932		(308)		2,570
Cash at beginning of year					$ 3,623				$ 3,931	3,623		3,931		1,361
Cash at end of year		$ 6,555				$ 3,623				6,555		3,623		3,931
Revision Adjustment [Member]
Cash Flows from Operating Activities
Net income												60		(895)
All other adjustments to reconcile net income to net cash provided by operating activities												(60)		895
Restatement Adjustment [Member]
Cash Flows from Operating Activities
Net income										7,098		(16,507)		(3,351)
ESOP, stock repurchase agreement and stock-based compensation										(9,447)		19,378		2,399
All other adjustments to reconcile net income to net cash provided by operating activities										$ 2,349		$ (2,871)		$ 952
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Restatement of Previously Is136

Restatement of Previously Issued Financial Statements - Additional Information (Detail) - USD ($)	Oct. 31, 2016	Sep. 30, 2016	Jul. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Nov. 11, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash dividends declared per share					$ 0.0195
Intercompany loans outstanding					$ 10,952,000
ADS Mexicana [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Intercompany loans outstanding					$ 0	$ 6,900,000
Subsequent Event [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash dividends declared per share		$ 0.06		$ 0.06
Common Stock [Member] | Subsequent Event [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash dividends declared per share	$ 0.06		$ 0.06
Preferred Stock [Member] | Subsequent Event [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash dividends declared per share	$ 0.0195		$ 0.0195

Quarterly Financial Informat137

Quarterly Financial Information - Summary of Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016		Mar. 31, 2015		Mar. 31, 2014
Quarterly Financial Information [Line Items]
Net sales	$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434	$ 1,290,678	[1]	$ 1,180,073	[1]	$ 1,067,780	[1]
Gross profit	49,504	74,842	86,529	74,477	24,384	49,287	70,137	61,305	285,352	[1]	205,113	[1]	192,548	[1]
Net (loss) income	(11,085)	12,942	15,928	12,782	(24,909)	(3,269)	18,081	6,401	30,567	[1]	(3,696)	[1]	7,974	[1]
Net (loss) income attributable to ADS	$ (12,119)	$ 13,131	$ 12,346	$ 11,694	$ (24,640)	$ (4,641)	$ 15,928	$ 5,526	$ 25,052	[1]	$ (7,827)	[1]	$ 4,381	[1]
Net income (loss) per share available to common stockholders:
Basic	$ (0.24)	$ 0.21	$ 0.20	$ 0.19	$ (0.47)	$ (0.09)	$ 0.40	$ (0.27)	$ 0.40	[1]	$ (0.38)	[1]	$ (0.21)	[1]
Diluted	$ (0.24)	$ 0.21	$ 0.19	$ 0.19	$ (0.47)	$ (0.09)	$ 0.40	$ (0.27)	$ 0.39	[1]	$ (0.38)	[1]	$ (0.21)	[1]
As Reported [Member]
Quarterly Financial Information [Line Items]
Net sales	$ 245,398	$ 312,827	$ 383,329	$ 349,124	$ 207,054	$ 279,871	$ 366,714	$ 326,434	$ 1,290,678		$ 1,180,073		$ 1,067,780
Gross profit	49,404	74,642	86,529	74,477	26,314	49,178	69,763	60,858	285,052		206,113		193,970
Net (loss) income	(14,057)	8,443	16,171	12,912	(13,734)	(1,953)	18,997	9,441	23,469		12,751		12,220
Net (loss) income attributable to ADS	$ (15,091)	$ 8,632	$ 12,589	$ 11,824	$ (13,465)	$ (3,325)	$ 16,844	$ 8,566	$ 17,954		$ 8,620		$ 8,627
Net income (loss) per share available to common stockholders:
Basic	$ (0.29)	$ 0.14	$ 0.20	$ 0.20	$ (0.26)	$ (0.07)	$ 0.41	$ (0.21)	$ 0.28		$ (0.06)		$ (0.12)
Diluted	$ (0.29)	$ 0.13	$ 0.20	$ 0.19	$ (0.26)	$ (0.07)	$ 0.41	$ (0.21)	$ 0.27		$ (0.06)		$ (0.12)
[1]	See Note 23. Restatement of Previously Issued Financial Statements

Schedule II - Consolidated V138

Schedule II - Consolidated Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Valuation and Qualifying Accounts [Abstract]
Balance at beginning of period	$ 5,423	$ 4,490	$ 6,145
Charged to costs and expenses	3,542	1,914	(71)
Charged to other accounts	(81)	(291)	(67)
Deductions	(928)	(690)	(1,517)
Balance at end of period	$ 7,956	$ 5,423	$ 4,490