For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Note 1. Business Description and Summary of Significant Accounting Policies - Summary of Concentration Risk (Details) - Customer Concentration Risk	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Philips \| Sales Revenue, Net
Concentration Risk [Line Items]
Concentration Risk, Percentage	16.00%	14.00%	13.00%
ZF \| Sales Revenue, Net
Concentration Risk [Line Items]
Concentration Risk, Percentage		12.00%	15.00%
ZF \| Accounts Receivable
Concentration Risk [Line Items]
Concentration Risk, Percentage		14.00%
Nexteer Automotive \| Sales Revenue, Net
Concentration Risk [Line Items]
Concentration Risk, Percentage	14.00%	12.00%	13.00%
Nexteer Automotive \| Accounts Receivable
Concentration Risk [Line Items]
Concentration Risk, Percentage	17.00%	16.00%
Regal Beloit Corporation \| Accounts Receivable
Concentration Risk [Line Items]
Concentration Risk, Percentage		10.00%