XML 61 R51.htm IDEA: XBRL DOCUMENT v3.22.1

Leases - Narrative (Details) $ in Millions	Mar. 31, 2022 USD ($)
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Liability, Aggregate Annual Minimum Payments	$ 3.0
Minimum [Member]
Operating Leased Assets [Line Items]
LeaseExpirationYear	2028
Maximum [Member]
Operating Leased Assets [Line Items]
LeaseExpirationYear	2032

X

- Definition

Year which lease or group of leases is set to expire.

+ References

No definition available.

+ Details

Name:	bhe_Leaseexpirationyear
Namespace Prefix:	bhe_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Lessee, operating lease, liability, aggregate annual minimum payments.

+ References

No definition available.

+ Details

Name:	bhe_LesseeOperatingLeaseLiabilityAggregateAnnualMinimumPayments
Namespace Prefix:	bhe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingLeasedAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: