XML 49 R42.htm IDEA: XBRL DOCUMENT
v3.24.3

Investments - Summary of Information Relating to Investments Measured at Fair Value for Company has Used Unobservable Inputs to Determine Fair Value (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | $ 357,528 |  | $ 471,170 |
Transfers out of Level III |  | (7,018) | [1] | (8,332) | [2]
Transfers into Level III |  | 4,514 | [3] | 6,369 | [4]
Net accretion |  | 2,989 |  | 6,690 |
Purchases |  | 61,526 |  | 30,613 |
Sales/Paydowns/Return of Capital |  | (56,970) |  | (87,335) |
Realized gain (loss) included in earnings |  | (8,340) |  | (11,119) |
Change in unrealized gain (loss) included in earnings |  | (2,997) |  | (11,474) |
Ending balance |  | 351,232 |  | 396,582 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | (8,547) |  | (14,759) |
First Lien Debt |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 289,295 |  | 359,648 |
Transfers out of Level III |  | 7,018 | [1] | (8,332) | [2]
Transfers into Level III |  | 4,514 | [3] | 4,726 | [4]
Net accretion |  | 1,624 |  | 4,528 |
Purchases |  | 53,697 |  | 29,486 |
Sales/Paydowns/Return of Capital |  | (48,790) |  | (66,247) |
Realized gain (loss) included in earnings |  | (1,312) |  | 323 |
Change in unrealized gain (loss) included in earnings |  | (5,466) |  | (2,115) |
Ending balance |  | 286,544 |  | 322,017 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | (4,316) |  | (6,150) |
Second Lien Debt |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 23,232 |  | 50,453 |
Transfers into Level III | [4] |  |  | 1,643 |
Net accretion |  | 30 |  | 283 |
Purchases |  | 1,165 |  | 649 |
Sales/Paydowns/Return of Capital |  | (3,961) |  | (22,656) |
Realized gain (loss) included in earnings |  | (3) |  | (1,123) |
Change in unrealized gain (loss) included in earnings |  | (148) |  | (775) |
Ending balance |  | 20,315 |  | 28,474 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | (150) |  | (1,815) |
Subordinated Debt |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 1,225 |  | 43 |
Purchases |  | 944 |  |  |
Sales/Paydowns/Return of Capital |  | (459) |  | 5,567 |
Realized gain (loss) included in earnings |  | (419) |  |  |
Change in unrealized gain (loss) included in earnings |  | 405 |  | (4,313) |
Ending balance |  | 1,696 |  | 1,297 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | 33 |  | (4,314) |
Equity |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 20,533 |  | 21,905 |
Purchases |  | 5,720 |  | 478 |
Sales/Paydowns/Return of Capital |  | (864) |  | (2,258) |
Realized gain (loss) included in earnings |  | (5,364) |  | 2,599 |
Change in unrealized gain (loss) included in earnings |  | 2,854 |  | (3,535) |
Ending balance |  | 22,879 |  | 19,189 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | (3,471) |  | (1,743) |
Collateral Loan Obligations |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 8,968 |  | 20,453 |
Net accretion |  | 1,335 |  | 1,879 |
Sales/Paydowns/Return of Capital |  | (1,316) |  | (1,741) |
Realized gain (loss) included in earnings |  | (1,242) |  | (12,918) |
Change in unrealized gain (loss) included in earnings |  | (959) |  | 2,752 |
Ending balance |  | 6,786 |  | 10,425 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | (960) |  | 2,752 |
Joint Ventures |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 14,275 |  | 18,668 |
Sales/Paydowns/Return of Capital |  | (1,580) |  |  |
Change in unrealized gain (loss) included in earnings |  | 317 |  | (3,488) |
Ending balance |  | 13,012 |  | 15,180 |
Changes in unrealized gains (losses) included in earnings related to investments still held at reporting date |  | $ 317 |  | $ (3,488) |
[1] | Transfers out of Level III represent a transfer of $7.0 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were observable as of September 30, 2024.
[2] | Transfers out of Level III represent a transfer of $8.3 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were observable as of September 30, 2023.
[3] | Transfers into Level III represent a transfer of $4.5 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were unobservable as of September 30, 2024.
[4] | Transfers into Level III represent a transfer of $6.4 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were unobservable as of September 30, 2023.

X
- Definition Fair value, measurement with unobservable inputs reconciliation, recurring basis, asset, net accretion. + References No definition available. + Details
Name: | ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAccretion
Namespace Prefix: | ptmn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value measurement with unobservable inputs reconciliation recurring basis asset realized gain loss. + References No definition available. + Details
Name: | ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLoss
Namespace Prefix: | ptmn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value measurement with unobservable inputs reconciliation recurring basis asset sales paydowns return of capital. + References No definition available. + Details
Name: | ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesPaydownsReturnOfCapital
Namespace Prefix: | ptmn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value measurement with unobservable inputs reconciliation recurring basis asset unrealized gain loss. + References No definition available. + Details
Name: | ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLoss
Namespace Prefix: | ptmn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 102 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-102 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of purchases 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://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentTypeAxis=ptmn_FirstLienDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=ptmn_SecondLienDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_SubordinatedDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_CollateralizedLoanObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=ptmn_JointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |