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Fair Value of Financial Instruments (Financial Instruments Measured at Fair Value) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | $ 1,730,563 | $ 1,749,488
Trading securities | 16,409 | 13,240
Equity securities | 269,843 | 248,361
U.S. Treasury |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 26,691 | 27,418
U.S. government agency |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 189,541 | 214,682
States, municipalities and political subdivisions | General obligations | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 88,679 | 95,212
States, municipalities and political subdivisions | General obligations | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 32,132 | 37,655
States, municipalities and political subdivisions | General obligations | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 115,780 | 113,911
States, municipalities and political subdivisions | General obligations | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 109,867 | 107,841
States, municipalities and political subdivisions | Special revenue | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 143,129 | 140,764
States, municipalities and political subdivisions | Special revenue | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 63,321 | 61,948
States, municipalities and political subdivisions | Special revenue | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 232,936 | 235,809
States, municipalities and political subdivisions | Special revenue | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 145,342 | 142,920
Foreign bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 5,047 | 9,716
Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 63,208 | 56,059
Corporate bonds | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 28,653 | 28,648
Corporate bonds | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 54,278 | 53,085
Corporate bonds | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 48,799 | 53,646
Corporate bonds | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 14,266 | 16,658
Corporate bonds | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 26,220 | 26,176
Corporate bonds | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 92,573 | 79,349
Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 7,315 | 7,424
Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 3,536 | 3,495
Recurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 1,730,563 | 1,749,488
Trading securities | 16,409 | 13,240
Equity securities | 269,843 | 248,361
Short-term investments | 175 | 175
Money market accounts | 10,039 | 3,275
Corporate-owned life insurance | 5,708 | 4,907
Total assets measured at fair value | 2,032,737 | 2,019,446
Recurring | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 15,330 | 15,949
Recurring | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 12,412 | 10,975
Recurring | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 61,773 | 53,536
Recurring | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 26,860 | 24,465
Recurring | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 24,234 | 22,286
Recurring | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 16,370 | 13,944
Recurring | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 108,216 | 101,555
Recurring | U.S. Treasury |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 26,691 | 27,418
Trading securities | 746 |
Recurring | U.S. government agency |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 189,541 | 214,682
Recurring | States, municipalities and political subdivisions | General obligations | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 88,679 | 95,212
Recurring | States, municipalities and political subdivisions | General obligations | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 32,132 | 37,655
Recurring | States, municipalities and political subdivisions | General obligations | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 115,780 | 113,911
Recurring | States, municipalities and political subdivisions | General obligations | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 109,867 | 107,841
Recurring | States, municipalities and political subdivisions | Special revenue | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 143,129 | 140,764
Recurring | States, municipalities and political subdivisions | Special revenue | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 63,321 | 61,948
Recurring | States, municipalities and political subdivisions | Special revenue | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 232,936 | 235,809
Recurring | States, municipalities and political subdivisions | Special revenue | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 145,342 | 142,920
Recurring | Foreign bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 5,047 | 9,716
Recurring | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 63,208 | 56,059
Recurring | Corporate bonds | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 28,653 | 28,648
Recurring | Corporate bonds | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 54,278 | 53,085
Trading securities | 399 | 397
Recurring | Corporate bonds | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 48,799 | 53,646
Trading securities | 1,822 | 1,599
Recurring | Corporate bonds | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 14,266 | 16,658
Trading securities | 4,809 | 3,236
Recurring | Corporate bonds | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 26,220 | 26,176
Trading securities | 3,320 | 3,028
Recurring | Corporate bonds | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 92,573 | 79,349
Trading securities | 1,840 | 2,231
Recurring | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 7,315 | 7,424
Recurring | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 3,536 | 3,495
Recurring | Nonredeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 4,648 | 5,651
Recurring | Redeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 3,473 | 2,749
Recurring | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 3,473 | 2,749
Equity securities | 269,248 | 247,766
Short-term investments | 175 | 175
Money market accounts | 10,039 | 3,275
Corporate-owned life insurance | 0 | 0
Total assets measured at fair value | 282,935 | 253,965
Recurring | Level 1 | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 15,330 | 15,949
Recurring | Level 1 | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 12,412 | 10,975
Recurring | Level 1 | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 61,773 | 53,536
Recurring | Level 1 | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 26,860 | 24,465
Recurring | Level 1 | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 24,234 | 22,286
Recurring | Level 1 | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 16,370 | 13,944
Recurring | Level 1 | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 108,216 | 101,555
Recurring | Level 1 | U.S. Treasury |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 |
Recurring | Level 1 | U.S. government agency |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | Foreign bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | Corporate bonds | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | Corporate bonds | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 1 | Corporate bonds | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 1 | Corporate bonds | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 1 | Corporate bonds | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 1 | Corporate bonds | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 1 | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 1 | Nonredeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 4,053 | 5,056
Recurring | Level 1 | Redeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 3,473 | 2,749
Recurring | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 1,729,612 | 1,748,572
Trading securities | 12,936 | 10,491
Equity securities | 0 | 0
Short-term investments | 0 | 0
Money market accounts | 0 | 0
Corporate-owned life insurance | 5,708 | 4,907
Total assets measured at fair value | 1,748,256 | 1,763,970
Recurring | Level 2 | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | U.S. Treasury |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 26,691 | 27,418
Trading securities | 746 |
Recurring | Level 2 | U.S. government agency |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 189,541 | 214,682
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 88,679 | 95,212
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 32,132 | 37,655
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 115,780 | 113,911
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 109,867 | 107,841
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 143,129 | 140,764
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 63,321 | 61,948
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 232,936 | 235,809
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 145,342 | 142,920
Recurring | Level 2 | Foreign bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 5,047 | 9,716
Recurring | Level 2 | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 63,208 | 56,059
Recurring | Level 2 | Corporate bonds | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 28,653 | 28,648
Recurring | Level 2 | Corporate bonds | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 54,278 | 53,085
Trading securities | 399 | 397
Recurring | Level 2 | Corporate bonds | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 48,799 | 53,646
Trading securities | 1,822 | 1,599
Recurring | Level 2 | Corporate bonds | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 14,266 | 16,658
Trading securities | 4,809 | 3,236
Recurring | Level 2 | Corporate bonds | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 26,220 | 26,176
Trading securities | 3,320 | 3,028
Recurring | Level 2 | Corporate bonds | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 92,323 | 79,099
Trading securities | 1,840 | 2,231
Recurring | Level 2 | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 7,315 | 7,424
Recurring | Level 2 | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 2,835 | 2,829
Recurring | Level 2 | Nonredeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 2 | Redeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 0 | 0
Recurring | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 951 | 916
Trading securities | 0 | 0
Equity securities | 595 | 595
Short-term investments | 0 | 0
Money market accounts | 0 | 0
Corporate-owned life insurance | 0 | 0
Total assets measured at fair value | 1,546 | 1,511
Recurring | Level 3 | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 0 | 0
Recurring | Level 3 | U.S. Treasury |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 |
Recurring | Level 3 | U.S. government agency |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue | Midwest |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue | Northeast |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue | South |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue | West |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | Foreign bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | Public utilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | Corporate bonds | Energy |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | Corporate bonds | Industrials |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 3 | Corporate bonds | Consumer goods and services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 3 | Corporate bonds | Health care |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 3 | Corporate bonds | Technology, media and telecommunications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Trading securities | 0 | 0
Recurring | Level 3 | Corporate bonds | Financial services |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 250 | 250
Trading securities | 0 | 0
Recurring | Level 3 | Mortgage-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Recurring | Level 3 | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 701 | 666
Recurring | Level 3 | Nonredeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities | 595 | 595
Recurring | Level 3 | Redeemable preferred stocks |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Trading securities | 0 | 0
Federal Home Loan Mortgage Corporation (FHLMC) Insured Loans | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 108,709 | 107,623
Federal Home Loan Mortgage Corporation (FHLMC) Insured Loans | Recurring | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 108,709 | 107,623
Federal Home Loan Mortgage Corporation (FHLMC) Insured Loans | Recurring | Level 1 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Federal Home Loan Mortgage Corporation (FHLMC) Insured Loans | Recurring | Level 2 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 108,709 | 107,623
Federal Home Loan Mortgage Corporation (FHLMC) Insured Loans | Recurring | Level 3 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Federal National Mortgage Association (FNMA) Insured Loans | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 53,153 | 52,748
Federal National Mortgage Association (FNMA) Insured Loans | Recurring | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 53,153 | 52,748
Federal National Mortgage Association (FNMA) Insured Loans | Recurring | Level 1 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Federal National Mortgage Association (FNMA) Insured Loans | Recurring | Level 2 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 53,153 | 52,748
Federal National Mortgage Association (FNMA) Insured Loans | Recurring | Level 3 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Government National Mortgage Association (GNMA) Insured Loans | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 77,388 | 76,701
Government National Mortgage Association (GNMA) Insured Loans | Recurring | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 77,388 | 76,701
Government National Mortgage Association (GNMA) Insured Loans | Recurring | Level 1 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 0 | 0
Government National Mortgage Association (GNMA) Insured Loans | Recurring | Level 2 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | 77,388 | 76,701
Government National Mortgage Association (GNMA) Insured Loans | Recurring | Level 3 | Collateralized mortgage obligations |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale securities | $ 0 | $ 0

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