Schedule I Summary of Investments - Other Than Investments in Related Parties (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	$ 4,643,816
Summary of investments, other than investments in related parties, fair value	4,513,760
Summary of investments, other than investments in related parties, carrying amount	4,536,093
US Government and Government Agencies and Authorities [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	162,796
Summary of investments, other than investments in related parties, fair value	161,814
Summary of investments, other than investments in related parties, carrying amount	161,814
US States and Political Subdivisions Debt Securities [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	136,996
Summary of investments, other than investments in related parties, fair value	126,932
Summary of investments, other than investments in related parties, carrying amount	126,932
Foreign Government Debt [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	173,732
Summary of investments, other than investments in related parties, fair value	169,033
Summary of investments, other than investments in related parties, carrying amount	169,033
Public Utility, Bonds [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	395,137
Summary of investments, other than investments in related parties, fair value	386,671
Summary of investments, other than investments in related parties, carrying amount	386,671
All Other Corporate Bonds [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	3,693,972
Summary of investments, other than investments in related parties, fair value	3,582,695
Summary of investments, other than investments in related parties, carrying amount	3,605,028
Certificates of Deposit [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	201
Summary of investments, other than investments in related parties, fair value	201
Summary of investments, other than investments in related parties, carrying amount	201
Mandatorily Redeemable Preferred Stock [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	4,248
Summary of investments, other than investments in related parties, fair value	3,748
Summary of investments, other than investments in related parties, carrying amount	3,748
Fixed Maturities [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	4,567,082
Summary of investments, other than investments in related parties, fair value	4,431,094
Summary of investments, other than investments in related parties, carrying amount	4,453,427
Public Utility, Equities [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	6,469
Summary of investments, other than investments in related parties, fair value	10,512
Summary of investments, other than investments in related parties, carrying amount	10,512
Banks, Trust and Insurance, Equities [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	6,667
Summary of investments, other than investments in related parties, fair value	7,581
Summary of investments, other than investments in related parties, carrying amount	7,581
Industrial, Miscellaneous, and All Others [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	3,011
Summary of investments, other than investments in related parties, fair value	4,866
Summary of investments, other than investments in related parties, carrying amount	4,866
Nonredeemable Preferred Stock [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	4,354
Summary of investments, other than investments in related parties, fair value	3,474
Summary of investments, other than investments in related parties, carrying amount	3,474
Equity Securities, Investment Summary [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	20,501
Summary of investments, other than investments in related parties, fair value	26,433
Summary of investments, other than investments in related parties, carrying amount	26,433
Policy Loans and Other Invested Assets [Member]
Summary of Investments Other Than Investments In Related Parties
Summary of investments, other than investments in related parties, cost	56,233
Summary of investments, other than investments in related parties, fair value	56,233
Summary of investments, other than investments in related parties, carrying amount	$ 56,233

Primerica, Inc. 10-K