Business Combination, Contingent Liability, Contingent Value Right, Percentage Of Net Sales

No definition available.

Name:	lnth_BusinessCombinationContingentLiabilityContingentValueRightPercentageOfNetSales
Namespace Prefix:	lnth_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Contingent Liability, Contingent Value Right, Percentage Of Total Consideration

+ References

No definition available.

+ Details

Name:	lnth_BusinessCombinationContingentLiabilityContingentValueRightPercentageOfTotalConsideration
Namespace Prefix:	lnth_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Right To Receive, Shares

+ References

No definition available.

+ Details

Name:	lnth_BusinessCombinationRightToReceiveShares
Namespace Prefix:	lnth_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=lnth_ProgenicsPharmaceuticalsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lnth_CashPayments2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ContingentConsiderationByTypeAxis=lnth_CashPayments2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Subsequent Events (Details) - Progenics Pharmaceuticals - USD ($) $ in Millions	Feb. 20, 2020	Oct. 01, 2019
Subsequent Event [Line Items]
Common stock portion, number of stock for each share of progenics common stock (in shares)		0.2502
Ownership percentage		35.00%
Subsequent Event
Subsequent Event [Line Items]
Common stock portion, number of stock for each share of progenics common stock (in shares)	0.31
Aggregate cash payments percentage	40.00%
Ownership percentage	40.00%
Cash Payments, 2022 \| Subsequent Event
Subsequent Event [Line Items]
Aggregate cash payments	$ 100
Cash Payments, 2023 \| Subsequent Event
Subsequent Event [Line Items]
Aggregate cash payments	$ 150
Maximum \| Subsequent Event
Subsequent Event [Line Items]
Percentage of total consideration	19.90%