Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017
Revenue from contracts with customers	$ 171,453	$ 166,858	$ 520,354	$ 495,072
Plain [Member]
Revenue from contracts with customers	79,306	69,764	235,311	214,809
Roller [Member]
Revenue from contracts with customers	34,841	32,485	107,711	96,215
Ball [Member]
Revenue from contracts with customers	16,720	16,496	52,832	48,756
Engineered Products [Member]
Revenue from contracts with customers	40,586	48,113	124,500	135,292
Aerospace [Member]
Revenue from contracts with customers	105,679	104,947	316,680	310,398
Aerospace [Member] | Plain [Member]
Revenue from contracts with customers	58,733	51,281	172,938	160,642
Aerospace [Member] | Roller [Member]
Revenue from contracts with customers	17,763	16,884	52,805	47,974
Aerospace [Member] | Ball [Member]
Revenue from contracts with customers	5,513	5,043	14,534	12,445
Aerospace [Member] | Engineered Products [Member]
Revenue from contracts with customers	23,670	31,739	76,403	89,337
Industrial [Member]
Revenue from contracts with customers	65,774	61,911	203,674	184,674
Industrial [Member] | Plain [Member]
Revenue from contracts with customers	20,573	18,483	62,373	54,167
Industrial [Member] | Roller [Member]
Revenue from contracts with customers	17,078	15,601	54,906	48,241
Industrial [Member] | Ball [Member]
Revenue from contracts with customers	11,207	11,453	38,298	36,311
Industrial [Member] | Engineered Products [Member]
Revenue from contracts with customers	$ 16,916	$ 16,374	$ 48,097	$ 45,955