{
 "sym": "rctix",
 "as_of": "December 31, 2025",
 "net_assets": 1815329634.0,
 "n_positions": 18,
 "categories": [
  {
   "name": "ASSET-BACKED SECURITIES",
   "pct": 45.4
  },
  {
   "name": "Step to",
   "pct": 12.31
  },
  {
   "name": "Floor) (a)(b)",
   "pct": 8.86
  },
  {
   "name": "Floor) (a)(b)(d)",
   "pct": 7.63
  },
  {
   "name": "BA (a)",
   "pct": 3.42
  },
  {
   "name": "BANK DEBTS (b)",
   "pct": 10.5
  },
  {
   "name": "Floor)",
   "pct": 9.42
  },
  {
   "name": "CORPORATE BONDS",
   "pct": 17.2
  },
  {
   "name": "Ahead DB Holdings LLC (a)",
   "pct": 6.63
  },
  {
   "name": "AMC Networks, Inc. (a)",
   "pct": 10.25
  },
  {
   "name": "Anywhere Real Estate Group LLC (a)",
   "pct": 5.25
  },
  {
   "name": "Ardagh Metal Packaging Finance U.S.A. LLC (a)",
   "pct": 4.0
  },
  {
   "name": "Brand Industrial Services, Inc. (a)",
   "pct": 10.38
  },
  {
   "name": "Brookfield Property REIT, Inc. (a)",
   "pct": 5.75
  },
  {
   "name": "Champ Acquisition Corp. (a)",
   "pct": 8.38
  },
  {
   "name": "CTR Partnership L.P. (a)",
   "pct": 3.88
  },
  {
   "name": "DISH DBS Corp.",
   "pct": 7.75
  },
  {
   "name": "FMC Corp.",
   "pct": 4.5
  },
  {
   "name": "Freedom Funding Center LLC (a)(m)",
   "pct": 12.0
  },
  {
   "name": "Frontier Communications Holdings LLC (a)",
   "pct": 8.75
  },
  {
   "name": "HAH Group Holding Co. LLC (a)",
   "pct": 9.75
  },
  {
   "name": "Hewlett Packard Enterprise Co.",
   "pct": 4.85
  },
  {
   "name": "HOA Royalty Co. LLC (a)(d)",
   "pct": 4.72
  },
  {
   "name": "LABL, Inc. (a)",
   "pct": 10.5
  },
  {
   "name": "Martin Midstream Partners L.P. (a)",
   "pct": 11.5
  },
  {
   "name": "L.P.",
   "pct": 0.99
  },
  {
   "name": "Pagaya US Holdings Co. LLC (a)",
   "pct": 8.88
  },
  {
   "name": "Sealed Air Corp. (a)",
   "pct": 7.25
  },
  {
   "name": "Shutterfly Finance LLC (a)(m)",
   "pct": 8.5
  },
  {
   "name": "TKC Holdings, Inc. (a)",
   "pct": 10.5
  },
  {
   "name": "VICI Properties L.P. (a)",
   "pct": 4.25
  },
  {
   "name": "SLM Corp.",
   "pct": 3.13
  },
  {
   "name": "Staples, Inc. (a)",
   "pct": 10.75
  },
  {
   "name": "FOREIGN ISSUER BONDS",
   "pct": 3.2
  },
  {
   "name": "PLC (a)",
   "pct": 9.0
  },
  {
   "name": "Latam Airlines Group S.A. (a)",
   "pct": 7.88
  },
  {
   "name": "Pembroke Olive Downs Pty Ltd.",
   "pct": 11.5
  },
  {
   "name": "Seagate Data Storage Technology Pte Ltd. (a)",
   "pct": 8.25
  },
  {
   "name": "PLC",
   "pct": 10.75
  },
  {
   "name": "MORTGAGE-BACKED SECURITIES",
   "pct": 12.7
  },
  {
   "name": "PRIVATE",
   "pct": 6.2
  },
  {
   "name": "Home Equity",
   "pct": 3.1
  },
  {
   "name": "Floor) (b)(g)",
   "pct": 4.31
  },
  {
   "name": "Floor) (b)(d)(g)",
   "pct": 3.99
  },
  {
   "name": "Floor) (b)(d)",
   "pct": 4.25
  },
  {
   "name": "Floating,",
   "pct": 5.79
  },
  {
   "name": "Cap) (b)(g)(h)",
   "pct": 1.47
  },
  {
   "name": "Commercial Mortgage-Backed Securities",
   "pct": 3.1
  },
  {
   "name": "GOVERNMENT AGENCIES",
   "pct": 6.5
  },
  {
   "name": "SOFR,",
   "pct": 6.1
  },
  {
   "name": "Day Average SOFR) (b)(g)(h)",
   "pct": 1.58
  },
  {
   "name": "Cap) (b)",
   "pct": 11.19
  },
  {
   "name": "Day Average SOFR) (b)(h)",
   "pct": 0.03
  },
  {
   "name": "OTHER",
   "pct": 0.0
  },
  {
   "name": "GOVERNMENT OBLIGATIONS",
   "pct": 0.6
  },
  {
   "name": "Treasury Note",
   "pct": 4.25
  },
  {
   "name": "MUNICIPAL BONDS",
   "pct": 4.4
  },
  {
   "name": "Commonwealth Puerto Rico Taxable Revenue Bond",
   "pct": 7.5
  },
  {
   "name": "Commonwealth of Puerto Rico (p)",
   "pct": 0.0
  },
  {
   "name": "PR Custodial Trust (g)(p)",
   "pct": 0.0
  }
 ],
 "buckets": [
  {
   "name": "Other",
   "value": 1965344232.0,
   "pct": 50.41881596853151
  },
  {
   "name": "US govt",
   "value": 1932693027.0,
   "pct": 49.58118403146849
  }
 ],
 "top": [
  {
   "text": "(Cost $1,832,839,506)",
   "value": 1832839506.0,
   "cat": "Treasury Portfolio (Premier Class),"
  },
  {
   "text": "(Cost $831,642,533)",
   "value": 831642533.0,
   "cat": "Step to"
  },
  {
   "text": "(Cost $321,543,847)",
   "value": 321543847.0,
   "cat": "Step to"
  },
  {
   "text": "(Cost $232,329,829)",
   "value": 232329829.0,
   "cat": "Floating,"
  },
  {
   "text": "(Cost $198,523,212)",
   "value": 198523212.0,
   "cat": "Step to"
  },
  {
   "text": "(Cost $119,411,219)",
   "value": 119411219.0,
   "cat": "Floating,"
  },
  {
   "text": "(Cost $99,851,496)",
   "value": 99851496.0,
   "cat": "Treasury Portfolio (Premier Class),"
  },
  {
   "text": "(Cost $81,720,612)",
   "value": 81720612.0,
   "cat": "Floating,"
  },
  {
   "text": "(Cost $57,134,313)",
   "value": 57134313.0,
   "cat": "Step to"
  },
  {
   "text": "(Cost $56,956,176)",
   "value": 56956176.0,
   "cat": "Floating,"
  },
  {
   "text": "(Cost $55,962,434)",
   "value": 55962434.0,
   "cat": "Floating,"
  },
  {
   "text": "(Cost $10,093,664)",
   "value": 10093664.0,
   "cat": "Floating,"
  },
  {
   "text": "Freddie Mac REMICS Series 5564",
   "value": 5564.0,
   "cat": "Floating,"
  },
  {
   "text": "Freddie Mac REMICS Series 5386",
   "value": 5386.0,
   "cat": "Floating,"
  },
  {
   "text": "Freddie Mac REMICS Series 5370",
   "value": 5370.0,
   "cat": "Floating,"
  },
  {
   "text": "Freddie Mac REMICS Series 5240",
   "value": 5240.0,
   "cat": "Floating,"
  },
  {
   "text": "Freddie Mac REMICS Series 4833",
   "value": 4833.0,
   "cat": "Floating,"
  },
  {
   "text": "(d) Security valued pursuant to Level 3 unobservable inputs. As of December 31, 2025,",
   "value": 2025.0,
   "cat": "Treasury Portfolio (Premier Class),"
  }
 ]
}