XML 46 R36.htm IDEA: XBRL DOCUMENT
v3.23.1

INVESTMENTS - Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Total |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | $ 619,194 | $ 570,028 | $ 643,160 | $ 551,047
New investments, repayments and settlements: |  |  |  |
Issuances/originations | 64,848 | 12,311 | 77,005 | 124,184
Settlements/repayments | (9,342) | (50,442) | (34,891) | (129,919)
Net proceeds from sales | (654) | (1) | (8,632) | (17,053)
Transfers | 0 | 0 | 0 | 0
Ending balance | 676,163 | 532,663 | 676,163 | 532,663
Total | Debt and Equity Securities, Realized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 403 | 0 | 5,303 | 13,876
Total | Debt and Equity Securities, Unrealized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 1,607 | 934 | (1,092) | 5,903
Reversal of prior period net depreciation (appreciation) on realization | 107 | (167) | (4,690) | (15,375)
Secured first lien debt |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 450,243 | 395,753 | 463,858 | 337,394
New investments, repayments and settlements: |  |  |  |
Issuances/originations | 58,385 | 12,120 | 69,860 | 86,823
Settlements/repayments | (7,646) | (29,605) | (32,384) | (50,347)
Net proceeds from sales | 0 | 0 | 0 | 0
Transfers | 0 | 0 | 0 | 0
Ending balance | 498,947 | 377,902 | 498,947 | 377,902
Secured first lien debt | Debt and Equity Securities, Realized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | (107) | 0 | (107) | 0
Secured first lien debt | Debt and Equity Securities, Unrealized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | (2,035) | (81) | (2,490) | 4,412
Reversal of prior period net depreciation (appreciation) on realization | 107 | (285) | 210 | (380)
Secured second lien debt |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 114,755 | 106,232 | 115,928 | 135,956
New investments, repayments and settlements: |  |  |  |
Issuances/originations | 4,060 | 166 | 4,242 | 30,336
Settlements/repayments | (1,696) | (20,837) | (2,507) | (79,572)
Net proceeds from sales | 0 | 0 | 0 | 0
Transfers | 0 | 0 | 0 | 0
Ending balance | 117,438 | 85,498 | 117,438 | 85,498
Secured second lien debt | Debt and Equity Securities, Realized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 0 | 0 | 0 | 0
Secured second lien debt | Debt and Equity Securities, Unrealized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 319 | (180) | (225) | 379
Reversal of prior period net depreciation (appreciation) on realization | 0 | 117 | 0 | (1,601)
Unsecured debt |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 45 | 66 | 55 | 10
New investments, repayments and settlements: |  |  |  |
Issuances/originations | 0 | 25 | 0 | 25
Settlements/repayments | 0 | 0 | 0 | 0
Net proceeds from sales | 0 | 0 | 0 | 0
Transfers | 0 | 0 | 0 | 0
Ending balance | 36 | 64 | 36 | 64
Unsecured debt | Debt and Equity Securities, Realized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 0 | 0 | (95) | 0
Unsecured debt | Debt and Equity Securities, Unrealized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | (9) | (27) | (19) | 29
Reversal of prior period net depreciation (appreciation) on realization | 0 | 0 | 95 | 0
Preferred Equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 26,140 | 26,483 | 27,046 | 29,246
New investments, repayments and settlements: |  |  |  |
Issuances/originations | 371 | 0 | 371 | 3,500
Settlements/repayments | 0 | 0 | 0 | 0
Net proceeds from sales | (654) | 0 | (654) | (1,321)
Transfers | 0 | 0 | 0 | 0
Ending balance | 28,298 | 27,935 | 28,298 | 27,935
Preferred Equity | Debt and Equity Securities, Realized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 510 | 0 | 510 | 0
Preferred Equity | Debt and Equity Securities, Unrealized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 1,931 | 1,452 | 1,025 | 791
Reversal of prior period net depreciation (appreciation) on realization | 0 | 0 | 0 | (4,281)
Common Equity/ Equivalents |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning balance | 28,011 | 41,494 | 36,273 | 48,441
New investments, repayments and settlements: |  |  |  |
Issuances/originations | 2,032 | 0 | 2,532 | 3,500
Settlements/repayments | 0 | 0 | 0 | 0
Net proceeds from sales | 0 | (1) | (7,978) | (15,732)
Transfers | 0 | 0 | 0 | 0
Ending balance | 31,444 | 41,264 | 31,444 | 41,264
Common Equity/ Equivalents | Debt and Equity Securities, Realized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 0 | 0 | 4,995 | 13,876
Common Equity/ Equivalents | Debt and Equity Securities, Unrealized Gain (Loss) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Total gain (loss) | 1,401 | (230) | 617 | 292
Reversal of prior period net depreciation (appreciation) on realization | $ 0 | $ 1 | $ (4,995) | $ (9,113)

X
- Definition Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Reversal Of Previously Recorded (Appreciation) Depreciation Upon Realization + References No definition available. + Details
Name: | glad_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetReversalOfPreviouslyRecordedAppreciationDepreciationUponRealization
Namespace Prefix: | glad_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. + References No definition available. + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_InvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=glad_DebtAndEquitySecuritiesRealizedGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=glad_DebtAndEquitySecuritiesUnrealizedGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=glad_DebtSecuritiesSecuredFirstLienDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=glad_DebtSecuritiesSecuredSecondLienDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=glad_PreferredEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=glad_CommonEquityEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |