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Fair Value - Level III Rollforward (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Total |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | $ 2,843,456 | $ 2,737,857
Purchases, including capitalized PIK and revolver fundings | 693,202 | 1,134,829
Proceeds from sales and paydowns of investments | (604,861) | (987,561)
Transfers into Level III | 222,167 |
Transfers out of Level III |  | (136,144)
Ending balance | 3,136,291 | 2,843,456
Unrealized (depreciation) appreciation for the period relating to those Level III assets that were still held by the Company at the end of the period: | (30,244) | 94,448
Total | Net realized gains (losses) on investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | 52,934 | (6,785)
Total | Net change in unrealized appreciation (depreciation) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | (70,607) | 101,260
First lien |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 1,635,143 | 1,483,367
Purchases, including capitalized PIK and revolver fundings | 621,319 | 821,224
Proceeds from sales and paydowns of investments | (493,579) | (664,671)
Transfers into Level III | 12,083 |
Transfers out of Level III |  | 0
Ending balance | 1,753,967 | 1,635,143
Unrealized (depreciation) appreciation for the period relating to those Level III assets that were still held by the Company at the end of the period: | (36,175) | 5,392
First lien | Net realized gains (losses) on investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | 12,351 | (10,329)
First lien | Net change in unrealized appreciation (depreciation) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | (33,350) | 5,552
Second lien |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 319,120 | 570,033
Purchases, including capitalized PIK and revolver fundings | 9,187 | 101,881
Proceeds from sales and paydowns of investments | (15,948) | (209,110)
Transfers into Level III | 210,084 |
Transfers out of Level III |  | (136,144)
Ending balance | 480,068 | 319,120
Unrealized (depreciation) appreciation for the period relating to those Level III assets that were still held by the Company at the end of the period: | (42,817) | (7,897)
Second lien | Net realized gains (losses) on investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | 0 | 349
Second lien | Net change in unrealized appreciation (depreciation) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | (42,375) | (7,889)
Subordinated |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 50,742 | 36,939
Purchases, including capitalized PIK and revolver fundings | 26,418 | 13,265
Proceeds from sales and paydowns of investments | 0 | 0
Transfers into Level III | 0 |
Transfers out of Level III |  | 0
Ending balance | 72,842 | 50,742
Unrealized (depreciation) appreciation for the period relating to those Level III assets that were still held by the Company at the end of the period: | (4,318) | 538
Subordinated | Net realized gains (losses) on investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | 0 | (5,150)
Subordinated | Net change in unrealized appreciation (depreciation) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | (4,318) | 5,688
Equity and other |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 838,451 | 647,518
Purchases, including capitalized PIK and revolver fundings | 36,278 | 198,459
Proceeds from sales and paydowns of investments | (95,334) | (113,780)
Transfers into Level III | 0 |
Transfers out of Level III |  | 0
Ending balance | 829,414 | 838,451
Unrealized (depreciation) appreciation for the period relating to those Level III assets that were still held by the Company at the end of the period: | 53,066 | 96,415
Equity and other | Net realized gains (losses) on investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | 40,583 | 8,345
Equity and other | Net change in unrealized appreciation (depreciation) |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Total gains or losses included in earnings | $ 9,436 | $ 97,909

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