XML 73 R40.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Collaborative Arrangement - Additional Information (Detail) - Abbott [Member] - USD ($) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2019
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |
Upfront fee received | $ 25,000,000 |  |
Collaborative arrangement milestone payment received | 10,000,000 |  |
Collaboration revenue recognized | 1,300,000 | $ 2,400,000 |
Upfront and milestone fee payment included in deferred revenue | 15,800,000 |  | $ 17,100,000
Maximum [Member] |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |
Collaborative arrangement additional potential milestone payments receivable | $ 56,000,000 |  |

X
- Definition Collaborative arrangement additional potential milestone payments receivable. + References No definition available. + Details
Name: | srdx_CollaborativeArrangementAdditionalPotentialMilestonePaymentsReceivable
Namespace Prefix: | srdx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Collaborative arrangement milestone payment received. + References No definition available. + Details
Name: | srdx_CollaborativeArrangementMilestonePaymentReceived
Namespace Prefix: | srdx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Upfront fee received. + References No definition available. + Details
Name: | srdx_UpfrontFeeReceived
Namespace Prefix: | srdx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044 + Details
Name: | us-gaap_ContractWithCustomerLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of compensation earned (contract income) under a research and development arrangement accounted for as a contract to perform research and development for others. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6420387&loc=d3e23221-108380 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420387&loc=d3e23199-108380 + Details
Name: | us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=srdx_AbbottMember
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: |