$ 3,038,100

$ 2,980,624

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

19,132

12,427

Fair Value [Member] | Recurring [Member]

3,038,100

2,980,624

19,132

12,427

800

16,259

37,811

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,074,291

3,031,662

Level 1 [Member] | Recurring [Member]

225,193

222,411

6,635

4,872

800

16,259

37,811

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

248,887

265,894

Level 2 [Member] | Recurring [Member]

2,793,283

2,738,225

12,497

7,555

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,805,780

2,745,780

Level 3 [Member] | Recurring [Member]

19,624

19,988

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

19,624

19,988

Fixed Maturities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,805,723

2,751,256

Fixed Maturities [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,805,723

2,751,256

Fixed Maturities [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fixed Maturities [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,789,990

2,735,049

Fixed Maturities [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

15,733

16,207

U.S. Treasury [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

32,755

33,895

U.S. Treasury [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

32,755

33,895

U.S. Treasury [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

U.S. Treasury [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

32,755

33,895

U.S. Treasury [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

U.S. Government Agency [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

308,680

269,583

U.S. Government Agency [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

308,680

269,583

U.S. Government Agency [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

U.S. Government Agency [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

308,680

269,583

U.S. Government Agency [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

States, Municipalities and Political Subdivisions [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

727,596

713,907

States, Municipalities and Political Subdivisions [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

727,596

713,907

States, Municipalities and Political Subdivisions [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

States, Municipalities and Political Subdivisions [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

726,898

713,209

States, Municipalities and Political Subdivisions [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

698

Foreign Bonds [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

163,739

172,856

Foreign Bonds [Member] | Fair Value [Member] | Recurring [Member]

163,739

172,856

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,252

1,253

Foreign Bonds [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Foreign Bonds [Member] | Level 2 [Member] | Recurring [Member]

163,739

172,856

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,252

1,253

Foreign Bonds [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Public Utilities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

215,676

218,576

Public Utilities [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

215,676

218,576

Public Utilities [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Public Utilities [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

215,676

218,576

Public Utilities [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Energy [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

160,162

161,010

Corporate Bonds [Member] | Energy [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

160,162

161,010

Corporate Bonds [Member] | Energy [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Energy [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

160,162

161,010

Corporate Bonds [Member] | Energy [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Industrials [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

232,623

237,028

Corporate Bonds [Member] | Industrials [Member] | Fair Value [Member] | Recurring [Member]

232,623

237,028

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,559

1,122

Corporate Bonds [Member] | Industrials [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Industrials [Member] | Level 2 [Member] | Recurring [Member]

232,623

237,028

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,559

1,122

Corporate Bonds [Member] | Industrials [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Consumer Goods and Services [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

175,741

167,914

Corporate Bonds [Member] | Consumer Goods and Services [Member] | Fair Value [Member] | Recurring [Member]

175,741

167,914

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,096

106

Corporate Bonds [Member] | Consumer Goods and Services [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Consumer Goods and Services [Member] | Level 2 [Member] | Recurring [Member]

174,322

166,460

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,096

106

Corporate Bonds [Member] | Consumer Goods and Services [Member] | Level 3 [Member] | Recurring [Member]

1,419

1,454

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Health Care [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

85,541

92,946

Corporate Bonds [Member] | Health Care [Member] | Fair Value [Member] | Recurring [Member]

85,541

92,946

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,172

1,154

Corporate Bonds [Member] | Health Care [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Health Care [Member] | Level 2 [Member] | Recurring [Member]

85,541

92,946

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,172

1,154

Corporate Bonds [Member] | Health Care [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Technology, Media and Telecommunications [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

121,261

120,966

Corporate Bonds [Member] | Technology, Media and Telecommunications [Member] | Fair Value [Member] | Recurring [Member]

121,261

120,966

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,925

2,054

Corporate Bonds [Member] | Technology, Media and Telecommunications [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Technology, Media and Telecommunications [Member] | Level 2 [Member] | Recurring [Member]

121,261

120,966

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

2,925

2,054

Corporate Bonds [Member] | Technology, Media and Telecommunications [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Financial Services [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

250,444

241,751

Corporate Bonds [Member] | Financial Services [Member] | Fair Value [Member] | Recurring [Member]

250,444

241,751

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,493

1,866

Corporate Bonds [Member] | Financial Services [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Corporate Bonds [Member] | Financial Services [Member] | Level 2 [Member] | Recurring [Member]

238,741

229,725

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,493

1,866

Corporate Bonds [Member] | Financial Services [Member] | Level 3 [Member] | Recurring [Member]

11,703

12,026

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Mortgage-Backed Securities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

21,105

22,066

Mortgage-Backed Securities [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

21,105

22,066

Mortgage-Backed Securities [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Mortgage-Backed Securities [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

21,105

22,066

Mortgage-Backed Securities [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Collateralized Mortgage Obligations [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

307,019

294,763

Collateralized Mortgage Obligations [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

307,019

294,763

Collateralized Mortgage Obligations [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Collateralized Mortgage Obligations [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

307,019

294,763

Collateralized Mortgage Obligations [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Asset-Backed Securities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,381

3,995

Asset-Backed Securities [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,381

3,995

Asset-Backed Securities [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Asset-Backed Securities [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,468

1,966

Asset-Backed Securities [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,913

2,029

Redeemable Preferred Stocks [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,598

2,385

Redeemable Preferred Stocks [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,598

2,385

Redeemable Preferred Stocks [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Redeemable Preferred Stocks [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

232,377

229,368

Equity Securities [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

232,377

229,368

Equity Securities [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

225,193

222,411

Equity Securities [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,293

3,176

Equity Securities [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,891

3,781

Equity Securities [Member] | Energy [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

544

563

Equity Securities [Member] | Energy [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

544

563

Equity Securities [Member] | Energy [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Energy [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Consumer Goods and Services [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Consumer Goods and Services [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Consumer Goods and Services [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Consumer Goods and Services [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Health Care [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

383

332

Equity Securities [Member] | Health Care [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

383

332

Equity Securities [Member] | Health Care [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Health Care [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Technology, Media and Telecommunications [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

379

Equity Securities [Member] | Technology, Media and Telecommunications [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

379

Equity Securities [Member] | Technology, Media and Telecommunications [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Equity Securities [Member] | Technology, Media and Telecommunications [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Public Utilities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

17,462

16,272

Common Stocks [Member] | Public Utilities [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

17,462

16,272

Common Stocks [Member] | Public Utilities [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

17,462

16,272

Common Stocks [Member] | Public Utilities [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Public Utilities [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Energy [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

14,656

14,363

Common Stocks [Member] | Energy [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

14,656

14,363

Common Stocks [Member] | Energy [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

14,656

14,363

Common Stocks [Member] | Energy [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Energy [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Industrials [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

45,449

46,099

Common Stocks [Member] | Industrials [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

45,449

46,099

Common Stocks [Member] | Industrials [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

45,430

46,083

Common Stocks [Member] | Industrials [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Industrials [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Consumer Goods and Services [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

21,293

21,258

Common Stocks [Member] | Consumer Goods and Services [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

21,293

21,258

Common Stocks [Member] | Consumer Goods and Services [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

21,293

21,258

Common Stocks [Member] | Consumer Goods and Services [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Consumer Goods and Services [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Health Care [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

24,945

24,998

Common Stocks [Member] | Health Care [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

24,945

24,998

Common Stocks [Member] | Health Care [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

24,945

24,998

Common Stocks [Member] | Health Care [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Health Care [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Technology, Media and Telecommunications [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

13,322

13,304

Common Stocks [Member] | Technology, Media and Telecommunications [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

13,322

13,304

Common Stocks [Member] | Technology, Media and Telecommunications [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

13,322

13,304

Common Stocks [Member] | Technology, Media and Telecommunications [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Technology, Media and Telecommunications [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Financial Services [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

90,277

88,262

Common Stocks [Member] | Financial Services [Member] | Fair Value [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

90,277

88,262

Common Stocks [Member] | Financial Services [Member] | Level 1 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

86,322

84,419

Common Stocks [Member] | Financial Services [Member] | Level 2 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Common Stocks [Member] | Financial Services [Member] | Level 3 [Member] | Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

3,891

3,781

Nonredeemable Preferred Stocks [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

4,973

4,812

Nonredeemable Preferred Stocks [Member] | Fair Value [Member] | Recurring [Member]

4,973

4,812

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,701

1,553

Nonredeemable Preferred Stocks [Member] | Level 1 [Member] | Recurring [Member]

1,763

1,714

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

1,701

1,553

Nonredeemable Preferred Stocks [Member] | Level 2 [Member] | Recurring [Member]

3,210

3,098

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Nonredeemable Preferred Stocks [Member] | Level 3 [Member] | Recurring [Member]