XML 65 R54.htm IDEA: XBRL DOCUMENT v3.20.2

Revenue - Disaggregate of Revenue by Reportable Segment and Revenue Category (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation Of Revenue [Line Items]
Revenue	$ 128,715	$ 156,391	$ 243,238	$ 300,182
Reclassification of Property, Plant and Equipment to Other Assets [Member]
Disaggregation Of Revenue [Line Items]
Revenue	82,776	109,421	148,742	209,199
Subscriber Solutions & Experience [Member]
Disaggregation Of Revenue [Line Items]
Revenue	40,393	40,502	82,572	77,255
Traditional & Other Products [Member]
Disaggregation Of Revenue [Line Items]
Revenue	5,546	6,468	11,924	13,728
Network Solutions [Member]
Disaggregation Of Revenue [Line Items]
Revenue	111,323	139,167	208,695	264,989
Network Solutions [Member] | Reclassification of Property, Plant and Equipment to Other Assets [Member]
Disaggregation Of Revenue [Line Items]
Revenue	69,721	96,262	122,776	181,935
Network Solutions [Member] | Subscriber Solutions & Experience [Member]
Disaggregation Of Revenue [Line Items]
Revenue	38,081	38,444	78,064	73,163
Network Solutions [Member] | Traditional & Other Products [Member]
Disaggregation Of Revenue [Line Items]
Revenue	3,521	4,461	7,855	9,891
Services & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue	17,392	17,224	34,543	35,193
Services & Support [Member] | Reclassification of Property, Plant and Equipment to Other Assets [Member]
Disaggregation Of Revenue [Line Items]
Revenue	13,055	13,159	25,966	27,264
Services & Support [Member] | Subscriber Solutions & Experience [Member]
Disaggregation Of Revenue [Line Items]
Revenue	2,312	2,058	4,508	4,092
Services & Support [Member] | Traditional & Other Products [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 2,025	$ 2,007	$ 4,069	$ 3,837

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

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_ProductOrServiceAxis=adtn_AccessAndAggregationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=adtn_SubscriberSolutionsAndExperienceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=adtn_TraditionalAndOtherProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=adtn_NetworkSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=adtn_ServicesAndSupportMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: