XML 37 R25.htm IDEA: XBRL DOCUMENT
v3.20.4

Leases (Tables) | 6 Months Ended
--- | ---
Dec. 31, 2020
Leases |
Schedule of components of operating lease expense | The components of operating lease expense were as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended December 31, |  | Six Months Ended December 31,
​ | ​ | 2019 |  | 2020 | ​ | 2019 |  | 2020
Operating lease cost | ​ | $ | 2,597 | ​ | $ | 2,370 | ​ | $ | 5,246 | ​ | $ | 4,904
Variable lease cost | ​ |  | 176 | ​ |  | 184 | ​ |  | 314 | ​ |  | 443
Short-term lease cost | ​ |  | 186 | ​ |  | 180 | ​ |  | 395 | ​ |  | 391
​ | ​ | $ | 2,959 | ​ | $ | 2,734 | ​ | $ | 5,955 | ​ | $ | 5,738
Schedule of supplemental balance sheet assets and liabilities related to operating leases | Supplemental disclosures related to operating leases were as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Balance Sheet Category |  | June 30, 2020 |  | December 31, 2020
Operating lease ROU assets, net |  | Other assets | ​ | $ | 27,936 | ​ | $ | 23,919
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities, current portion |  | Other accrued expenses and current liabilities | ​ | $ | 8,537 | ​ | $ | 7,479
Operating lease liabilities, long-term |  | Other long-term liabilities | ​ |  | 19,713 | ​ |  | 17,176
Total operating lease liabilities | ​ | ​ | ​ | $ | 28,250 | ​ | $ | 24,655
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average remaining lease term | ​ | ​ | ​ |  | ​ | ​ |  | 4.4 years
Weighted average discount rate | ​ | ​ | ​ |  | ​ | ​ |  | 4.3 %
Schedule of supplemental cash flow information related to operating leases | Supplemental cash flow information related to operating leases was as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six Months Ended December 31,
​ | ​ | 2019 |  | 2020
Cash paid for operating lease liabilities | ​ | $ | 5,198 | ​ | $ | 5,234
ROU assets obtained in exchange for new lease obligations | ​ |  | 1,479 | ​ |  | 725
Schedule of maturities of operating lease liabilities | Maturities of operating lease liabilities at December 31, 2020 were as follows (in thousands): ​
​ | ​ | ​ | ​
​ |  | December 31, 2020
Less than one year | ​ | $ | 8,348
1 – 2 years | ​ |  | 5,841
2 – 3 years | ​ |  | 4,448
3 – 4 years | ​ |  | 3,598
4 – 5 years | ​ |  | 2,201
Thereafter | ​ |  | 2,920
​ | ​ |  | 27,356
Less: imputed interest | ​ |  | (2,701)
Total lease liabilities | ​ | $ | 24,655

X
- Definition Tabular disclosure of supplemental balance sheet assets and liabilities related to operating leases. + References No definition available. + Details
Name: | osis_ScheduleOfSupplementalBalanceSheetAssetsAndLiabilitiesRelatedToOperatingLeasesTableTextBlock
Namespace Prefix: | osis_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of supplemental cash flow information for operating leases. + References No definition available. + Details
Name: | osis_ScheduleOfSupplementalCashFlowInformationForOperatingLeasesTableTextBlock
Namespace Prefix: | osis_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration