Segment Information (Tables)

9 Months Ended

Jul. 31, 2015

Segment Reporting [Abstract]

Segment reporting information

In thousands	Underground		Surface		Corporate			Eliminations			Total
Quarter ended July 31, 2015
Net sales	$	453,302	$	362,559	$	—		$	(23,678	)	$	792,183
Operating income (loss)	$	33,967	$	57,319	$	(12,542	)	$	(5,380	)	$	73,364
Interest income	—		—		2,543			—			2,543
Interest expense	—		—		(16,219		)	—			(16,219		)
Income (loss) before income taxes	$	33,967	$	57,319	$	(26,218	)	$	(5,380	)	$	59,688
Depreciation and amortization	$	22,826	$	13,726	$	186		$	—		$	36,738
Capital expenditures	$	10,628	$	7,398	$	—		$	—		$	18,026
Quarter ended August 1, 2014
Net sales	$	470,747	$	435,186	$	—		$	(30,272	)	$	875,661
Operating income (loss)	$	47,635	$	87,269	$	(7,039	)	$	(8,574	)	$	119,291
Interest income	—		—		1,707			—			1,707
Interest expense	—		—		(16,604		)	—			(16,604		)
Income (loss) before income taxes	$	47,635	$	87,269	$	(21,936	)	$	(8,574	)	$	104,394
Depreciation and amortization	$	18,568	$	14,625	$	695		$	—		$	33,888
Capital expenditures	$	12,675	$	10,078	$	2,011		$	—		$	24,764

In thousands	Underground		Surface		Corporate			Eliminations			Total
Nine months ended July 31, 2015
Net sales	$	1,261,904	$	1,132,981	$	—		$	(88,306	)	$	2,306,579
Operating income (loss)	$	106,691	$	142,931	$	(36,704	)	$	(20,550	)	$	192,368
Interest income	—		—		8,463			—			8,463
Interest expense	—		—		(48,368		)	—			(48,368		)
Income (loss) before income taxes	$	106,691	$	142,931	$	(76,609	)	$	(20,550	)	$	152,463
Depreciation and amortization	$	60,538	$	40,672	$	1,704		$	—		$	102,914
Capital expenditures	$	24,849	$	32,831	$	141		$	—		$	57,821
Nine months ended August 1, 2014
Net sales	$	1,466,088	$	1,279,507	$	—		$	(100,892	)	$	2,644,703
Operating income (loss)	$	177,773	$	216,034	$	(35,464	)	$	(28,065	)	$	330,278
Interest income	—		—		6,583			—			6,583
Interest expense	—		—		(49,148		)	—			(49,148		)
Income (loss) before income taxes	$	177,773	$	216,034	$	(78,029	)	$	(28,065	)	$	287,713
Depreciation and amortization	$	54,780	$	41,834	$	2,111		$	—		$	98,725
Capital expenditures	$	31,653	$	33,446	$	3,969		$	—		$	69,068