Reportable Segments (Tables)

6 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Schedule of segment information

Segment performance is evaluated based on segment net sales and gross margin. Items not allocated to segment operating income include corporate administrative expenses and certain other amounts.

	Three Months Ended						Six Months Ended
	September 30, 2017			October 1, 2016			September 30, 2017			October 1, 2016
Net External Sales
Plain	$	72,392		$	68,835		$	145,045		$	139,285
Roller		32,317			26,795			63,730			54,629
Ball		16,480			14,569			32,260			28,279
Engineered Products		43,128			43,744			87,179			86,329
	$	164,317		$	153,943		$	328,214		$	308,522
Gross Margin
Plain	$	27,728		$	26,603		$	56,104		$	53,157
Roller		12,897			11,496			25,652			23,785
Ball		6,740			5,183			12,915			10,487
Engineered Products		14,446			13,449			29,049			26,553
	$	61,811		$	56,731		$	123,720		$	113,982
Selling, General & Administrative Expenses
Plain	$	6,323		$	5,825		$	12,772		$	11,815
Roller		1,641			1,526			3,212			2,967
Ball		1,680			1,317			3,295			2,779
Engineered Products		5,122			4,413			10,399			9,306
Corporate		12,829			12,107			25,695			24,117
	$	27,595		$	25,188		$	55,373		$	50,984
Operating Income
Plain	$	20,662		$	19,867		$	41,823		$	39,630
Roller		11,236			10,406			22,419			21,194
Ball		5,020			3,724			9,515			7,438
Engineered Products		805			7,786			9,022			14,733
Corporate		(12,445	)		(12,229	)		(25,701	)		(24,220	)
	$	25,278		$	29,554		$	57,078		$	58,775
Geographic External Sales
Domestic	$	144,997		$	135,240		$	288,023		$	270,417
Foreign		19,320			18,703			40,191			38,105
	$	164,317		$	153,943		$	328,214		$	308,522
Intersegment Sales
Plain	$	1,397		$	889		$	2,553		$	2,102
Roller		2,884			4,264			6,293			8,248
Ball		624			326			1,152			841
Engineered Products		7,848			6,899			16,021			14,416
	$	12,753		$	12,378		$	26,019		$	25,607