Segments (Tables)

3 Months Ended

Jul. 31, 2020

Segments

Schedule of segment results

	Three Months Ended July 31, 2020
					Depreciation and		Adjusted
	Net Sales		Gross Profit		Amortization		EBITDA
	(in thousands)
Geographic divisions	$	794,472	$	257,838	$	26,782	$	82,503
Other		8,101		2,620		91		551
Corporate		—		—		224		—
	$	802,573	$	260,458	$	27,097	$	83,054

	Three Months Ended July 31, 2019
					Depreciation and		Adjusted
	Net Sales		Gross Profit		Amortization		EBITDA
	(in thousands)
Geographic divisions	$	840,157	$	271,354	$	28,934	$	83,082
Other		7,019		2,300		52		506
Corporate		—		—		289		—
	$	847,176	$	273,654	$	29,275	$	83,588

Reconciliation of Adjusted EBITDA to net income

	Three Months Ended
	July 31,
	2020		2019
	(in thousands)
Net income	$	27,219	$	24,820
Interest expense		14,081		18,277
Interest income		(37)		(12)
Provision for income taxes		9,604		7,590
Depreciation expense		12,827		12,422
Amortization expense		14,270		16,853
Stock appreciation expense(a)		792		60
Redeemable noncontrolling interests(b)		252		662
Equity-based compensation(c)		1,605		1,395
Severance and other permitted costs(d)		1,947		554
Transaction costs (acquisitions and other)(e)		100		972
Loss (gain) on disposal and impairment of assets(f)		394		(156)
Effects of fair value adjustments to inventory(g)		—		151
Adjusted EBITDA	$	83,054	$	83,588

(a) Represents non-cash expense related to stock appreciation rights agreements.

(b) Represents non-cash compensation expense related to changes in the fair values of noncontrolling interests.

(c) Represents non-cash equity-based compensation expense related to the issuance of share-based awards.

(d) Represents severance expenses and other costs permitted in the calculation of Adjusted EBITDA under the ABL Facility and the Term Loan Facility, including certain unusual, nonrecurring costs due to COVID-19.

(e) Represents costs related to acquisitions paid to third parties.

(f) Includes impairment of assets resulting from restructuring plans to close certain facilities and gains from the sale of assets.

(g) Represents the non-cash cost of sales impact of acquisition accounting adjustments to increase inventory to its estimated fair value.

Schedule of net sales to external customers by main product lines

	Three Months Ended
	July 31,
	2020		2019
	(in thousands)
Wallboard	$	327,997	$	341,595
Ceilings		113,702		129,110
Steel framing		110,487		131,829
Other products		250,387		244,642
Total net sales	$	802,573	$	847,176

Schedule of net sales by major geographic area

	Three Months Ended
	July 31,
	2020		2019
	(in thousands)
United States	$	679,321	$	731,343
Canada		123,252		115,833
Total net sales	$	802,573	$	847,176

Schedule of property and equipment by major geographic area

	July 31,		April 30,
	2020		2020
	(in thousands)
United States	$	265,351	$	270,855
Canada		34,310		34,612
Total property and equipment, net	$	299,661	$	305,467