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Condensed Financial Information of The Registrant (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Sep. 19, 2013 | Dec. 31, 2012 | Jun. 30, 2006
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  | $ 29,642,905,000 | $ 25,480,972,000 |  |  |  |  |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  | 558,284,000 | 97,694,000 |  |  |  |  |
Cash and cash equivalents |  | $ 1,525,275,000 |  |  | $ 1,645,669,000 | $ 1,645,669,000 |  |  | $ 923,647,000 | $ 1,645,669,000 | $ 923,647,000 | $ 1,259,892,000 | 1,525,275,000 | 1,645,669,000 |  | $ 923,647,000 |  | $ 1,259,892,000 |
Other assets |  |  |  |  |  |  |  |  |  |  |  |  | 712,366,000 | 602,957,000 |  |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  |  | 50,383,152,000 | 44,654,300,000 | [1] |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 1,165,071,000 | 994,230,000 |  |  |  |  |
Total stockholders equity |  |  |  |  |  |  |  |  |  |  |  |  | 6,135,381,000 | 7,023,452,000 |  | 5,935,527,000 |  | 6,910,187,000 |
Total liabilities and stockholders’ equity |  |  |  |  |  |  |  |  |  |  |  |  | 50,383,152,000 | 44,654,300,000 |  |  |  |  |
CONSOLIDATED STATEMENTS OF INCOME |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total investment related gains (losses), net |  |  |  |  |  |  |  |  |  | (164,750,000) | 186,193,000 | 63,990,000 |  |  |  |  |  |  |
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  | 242,629,000 | 324,486,000 | 216,417,000 |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent |  | 163,127,000 | $ 83,534,000 | $ 130,391,000 | 125,114,000 | 191,091,000 | $ 157,996,000 | $ 198,296,000 | 136,664,000 | 502,166,000 | 684,047,000 | 418,837,000 |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Net of Tax |  |  |  |  |  |  |  |  |  | (948,845,000) | 651,522,000 | (1,103,295,000) |  |  |  |  |  |  |
Total comprehensive income (loss) |  |  |  |  |  |  |  |  |  | (446,679,000) | 1,335,569,000 | (684,458,000) |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 850,000,000.0
Debt Issuance Cost |  |  |  |  |  |  |  |  |  |  | 25,300,000 |  |  |  |  |  |  |  |
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent |  | 163,127,000 | $ 83,534,000 | $ 130,391,000 | 125,114,000 | 191,091,000 | $ 157,996,000 | $ 198,296,000 | 136,664,000 | 502,166,000 | 684,047,000 | 418,837,000 |  |  |  |  |  |  |
Other, net |  |  |  |  |  |  |  |  |  | (18,461,000) | 155,428,000 | 99,634,000 |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  | 2,088,615,000 | 2,336,155,000 | 1,727,160,000 |  |  |  |  |  |  |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales of fixed maturity securities available-for-sale |  |  |  |  |  |  |  |  |  | 5,461,687,000 | 4,309,985,000 | 3,629,378,000 |  |  |  |  |  |  |
Purchases of fixed maturity securities available-for-sale |  |  |  |  |  |  |  |  |  | 21,322,000 | 63,785,000 | 33,724,000 |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  | (145,235,000) | 0 | (2,805,000) |  |  |  |  |  |  |
Payments for (Proceeds from) Short-term Investments |  |  |  |  |  |  |  |  |  | (470,002,000) | 38,060,000 | 138,024,000 |  |  |  |  |  |  |
Payments for (Proceeds from) Other Investing Activities |  |  |  |  |  |  |  |  |  | 77,445,000 | 286,665,000 | (209,900,000) |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  |  |  | (1,431,741,000) | (1,310,945,000) | (1,335,101,000) |  |  |  |  |  |  |
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to stockholders |  |  |  |  |  |  |  |  |  | (93,381,000) | (87,256,000) | (77,642,000) |  |  |  |  |  |  |
Purchases of treasury stock |  |  |  |  |  |  |  |  |  | (384,519,000) | (201,525,000) | (269,204,000) |  |  |  |  |  |  |
Excess tax benefits from share-based payment arrangement cash flow |  |  |  |  |  |  |  |  |  | 2,963,000 | (3,011,000) | 3,125,000 |  |  |  |  |  |  |
Exercise of stock options, net |  |  |  |  |  |  |  |  |  | 11,151,000 | 9,246,000 | 28,390,000 |  |  |  |  |  |  |
Proceeds from affiliated long-term debt issuance |  |  |  |  |  |  |  |  |  | 0 | (100,000,000) | (398,492,000) |  |  |  |  |  |  |
Payments Of Debt Issuance Costs |  |  |  |  |  |  |  |  |  | (4,748,000) | (4,260,000) | (3,400,000) |  |  |  |  |  |  |
Net cash used in financing activities |  |  |  |  |  |  |  |  |  | (708,282,000) | (255,559,000) | (681,213,000) |  |  |  |  |  |  |
Change in cash and cash equivalents |  |  |  |  |  |  |  |  |  | (120,394,000) | 722,022,000 | (336,245,000) |  |  |  |  |  |  |
Cash and cash equivalents, beginning of period |  |  |  |  | 1,645,669,000 |  |  |  | 923,647,000 | 1,645,669,000 | 923,647,000 | 1,259,892,000 |  |  |  |  |  |  |
Cash and cash equivalents, end of period |  | 1,525,275,000 |  |  |  | 1,645,669,000 |  |  |  | 1,525,275,000 | 1,645,669,000 | 923,647,000 |  |  |  |  |  |  |
Supplementary information: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  |  |  |  |  |  | 148,124,000 | 136,499,000 | 116,809,000 |  |  |  |  |  |  |
Income taxes paid, net of refunds |  |  |  |  |  |  |  |  |  | 41,577,000 | 70,342,000 | 110,773,000 |  |  |  |  |  |  |
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  | 426,218,000 | 486,813,000 |  |  |  |  |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  | 254,398,000 | 87,726,000 |  |  |  |  |
Cash and cash equivalents |  | 39,452,000 |  |  | 48,819,000 | 48,819,000 |  |  | 24,137,000 | 48,819,000 | 24,137,000 | 52,680,000 | 39,452,000 | 48,819,000 |  | $ 24,137,000 |  | $ 52,680,000 |
Investments In Subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | 8,110,687,000 | 8,649,084,000 |  |  |  |  |
Loans and Leases Receivable, Related Parties |  |  |  |  |  |  |  |  |  |  |  |  | 1,070,000,000 | 1,060,000,000 |  |  |  |  |
Other assets |  |  |  |  |  |  |  |  |  |  |  |  | 309,340,000 | 342,487,000 |  |  |  |  |
Total assets |  |  |  |  |  |  |  |  |  |  |  |  | 10,210,095,000 | 10,674,929,000 |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated | [2] |  |  |  |  |  |  |  |  |  |  |  | 2,279,663,000 | 2,277,421,000 |  |  |  |  |
Long-term debt - affiliated | [3] |  |  |  |  |  |  |  |  |  |  |  | 500,000,000 | 500,000,000 |  |  |  |  |
Other liabilities |  |  |  |  |  |  |  |  |  |  |  |  | 1,295,051,000 | 874,056,000 |  |  |  |  |
Total stockholders equity |  |  |  |  |  |  |  |  |  |  |  |  | 6,135,381,000 | 7,023,452,000 |  |  |  |  |
Total liabilities and stockholders’ equity |  |  |  |  |  |  |  |  |  |  |  |  | 10,210,095,000 | 10,674,929,000 |  |  |  |  |
CONSOLIDATED STATEMENTS OF INCOME |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest and Dividend Income, Operating | [4] |  |  |  |  |  |  |  |  | 321,645,000 | 521,623,000 | 275,215,000 |  |  |  |  |  |  |
Total investment related gains (losses), net |  |  |  |  |  |  |  |  |  | (324,000) | 4,936,000 | 1,714,000 |  |  |  |  |  |  |
Operating Expenses |  |  |  |  |  |  |  |  |  | (13,652,000) | (10,751,000) | (21,164,000) |  |  |  |  |  |  |
Interest and Debt Expense |  |  |  |  |  |  |  |  |  | (176,364,000) | (131,852,000) | (162,212,000) |  |  |  |  |  |  |
Income (loss) before income tax and undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  |  | 131,305,000 | 383,956,000 | 93,553,000 |  |  |  |  |  |  |
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  | (19,465,000) | (22,008,000) | 33,850,000 |  |  |  |  |  |  |
Net income (loss) before undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  |  | 150,770,000 | 405,964,000 | 59,703,000 |  |  |  |  |  |  |
Equity In Undistributed Earnings Of Subsidiaries |  |  |  |  |  |  |  |  |  | 351,396,000 | 278,083,000 | 359,134,000 |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent |  |  |  |  |  |  |  |  |  | 502,166,000 | 684,047,000 | 418,837,000 |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Net of Tax |  |  |  |  |  |  |  |  |  | 44,073,000 | 36,876,000 | 21,033,000 |  |  |  |  |  |  |
Total comprehensive income (loss) |  |  |  |  |  |  |  |  |  | 546,239,000 | 720,923,000 | 439,870,000 |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Dividends Received |  |  |  |  |  |  |  |  |  | 196,445,000 | 423,323,000 | 175,000,000 |  |  |  |  |  |  |
Long-term Debt |  |  |  |  |  |  |  |  |  |  |  |  | 500,000,000 | 500,000,000 |  |  |  |  |
Notes and Loans, Noncurrent |  |  |  |  |  |  |  |  |  |  |  |  | 2,295,709,000 | 2,294,993,000 |  |  |  |  |
Debt Issuance Cost |  |  |  |  |  |  |  |  |  | (16,046,000) | (17,572,000) |  |  |  |  |  |  |  |
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent |  |  |  |  |  |  |  |  |  | 502,166,000 | 684,047,000 | 418,837,000 |  |  |  |  |  |  |
Equity Net Earnings Subsidiaries |  |  |  |  |  |  |  |  |  | (351,396,000) | (278,083,000) | (359,134,000) |  |  |  |  |  |  |
Other, net |  |  |  |  |  |  |  |  |  | 486,159,000 | (171,299,000) | 162,586,000 |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  | 636,929,000 | 234,665,000 | 222,289,000 |  |  |  |  |  |  |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales of fixed maturity securities available-for-sale |  |  |  |  |  |  |  |  |  | 100,734,000 | 132,732,000 | 176,062,000 |  |  |  |  |  |  |
Purchases of fixed maturity securities available-for-sale |  |  |  |  |  |  |  |  |  | (52,698,000) | (105,535,000) | (103,566,000) |  |  |  |  |  |  |
Purchases Of Subsidiary Debt Securities |  |  |  |  |  |  |  |  |  | (10,000,000) | 41,751,000 | (76,751,000) |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  | (3,701,000) | 0 | (2,805,000) |  |  |  |  |  |  |
Payments for (Proceeds from) Short-term Investments |  |  |  |  |  |  |  |  |  | (102,508,000) | 96,967,000 | (96,967,000) |  |  |  |  |  |  |
Payments for (Proceeds from) Other Investing Activities |  |  |  |  |  |  |  |  |  | (7,542,000) | 126,397,000 | (79,023,000) |  |  |  |  |  |  |
Capital Contributions To Subsidiaries |  |  |  |  |  |  |  |  |  | (103,832,000) | (222,760,000) | (144,459,000) |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  |  |  | (179,547,000) | 69,552,000 | (327,509,000) |  |  |  |  |  |  |
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends to stockholders |  |  |  |  |  |  |  |  |  | (93,381,000) | (87,256,000) | (77,642,000) |  |  |  |  |  |  |
Purchases of treasury stock |  |  |  |  |  |  |  |  |  | (384,519,000) | (201,525,000) | (269,204,000) |  |  |  |  |  |  |
Exercise of stock options, net |  |  |  |  |  |  |  |  |  | 11,151,000 | 9,246,000 | 28,390,000 |  |  |  |  |  |  |
Proceeds from affiliated long-term debt issuance |  |  |  |  |  |  |  |  |  | 0 | 0 | (398,533,000) |  |  |  |  |  |  |
Payments Of Debt Issuance Costs |  |  |  |  |  |  |  |  |  | 0 | 0 | (3,400,000) |  |  |  |  |  |  |
Net cash used in financing activities |  |  |  |  |  |  |  |  |  | (466,749,000) | (279,535,000) | 76,677,000 |  |  |  |  |  |  |
Change in cash and cash equivalents |  |  |  |  |  |  |  |  |  | (9,367,000) | 24,682,000 | (28,543,000) |  |  |  |  |  |  |
Cash and cash equivalents, beginning of period |  |  |  |  | $ 48,819,000 |  |  |  | $ 24,137,000 | 48,819,000 | 24,137,000 | 52,680,000 |  |  |  |  |  |  |
Cash and cash equivalents, end of period |  | $ 39,452,000 |  |  |  | $ 48,819,000 |  |  |  | 39,452,000 | 48,819,000 | 24,137,000 |  |  |  |  |  |  |
Supplementary information: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  |  |  |  |  |  | 165,775,000 | 161,499,000 | 141,615,000 |  |  |  |  |  |  |
Income taxes paid, net of refunds |  |  |  |  |  |  |  |  |  | (120,680,000) | $ 87,000 | $ 82,000,000 |  |  |  |  |  |  |
Junior Subordinated Debentures Due 2065 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | 400,000,000 |  |  |  |  |  |
Junior Subordinated Debentures Due 2065 [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated |  |  |  |  |  |  |  |  |  |  |  |  | 398,663,000 | 398,660,000 |  |  |  |  |
Subordinated Debentures Due 2042 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  | 6.20% |  |  |  |  |  |
Subordinated Debentures Due 2042 [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 | 400,000,000 |  |  |  |  |
Senior Notes Due 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  | $ 400,000,000.0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  | 4.70% |  |  |  | 4.70% |  |
Senior Notes Due 2023 [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated |  |  |  |  |  |  |  |  |  |  |  |  | $ 398,835,000 | 398,684,000 |  |  |  |  |
Senior Notes Due 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |
Senior Notes Due 2021 [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated |  |  |  |  |  |  |  |  |  |  |  |  | $ 398,803,000 | 398,583,000 |  |  |  |  |
Senior Notes Due 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  | 6.45% |  |  |  |  |  |
Senior Notes Due 2019 [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated |  |  |  |  |  |  |  |  |  |  |  |  | $ 399,737,000 | 399,669,000 |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Long-term Debt |  |  |  |  |  |  |  |  |  | 400,000,000 |  |  |  |  |  |  |  |  |
Senior Notes Due 2017 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  | 5.625% |  |  |  |  |  |
Senior Notes Due 2017 [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities and Stockholders’ Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term and long-term debt - unaffiliated |  |  |  |  |  |  |  |  |  |  |  |  | $ 299,671,000 | $ 299,397,000 |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Long-term Debt |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |  |  |  |  |  |  |  |
[1] | Total assets for the Corporate and Other segment have been updated to conform with current period presentation for the adoption of the accounting standard update "Simplifying the Presentation of Debt Issuance Costs."
[2] | Long-term debt - unaffiliated consists of the following: 2015 2014$400 million Variable Rate Junior Subordinated Debentures due 2065 $398,663 $398,660$400 million 6.20% Subordinated Debentures due 2042 400,000 400,000$400 million 4.70% Senior Notes due 2023 398,835 398,684$400 million 5.00% Senior Notes due 2021 398,803 398,583$400 million 6.45% Senior Notes due 2019 399,737 399,669$300 million 5.625% Senior Notes due 2017 299,671 299,397Subtotal 2,295,709 2,294,993Unamortized debt issue costs (16,046) (17,572)Total $2,279,663 $2,277,421Repayments of long-term debt—unaffiliated due over the next five years total $300,000 in 2017 and $400,000 in
[3] | Long-term debt—affiliated in 2015 and 2014 and consists of $500,000 of subordinated debt issued to various operating subsidia
[4] | nterest/Dividend income includes $196,445, $423,323 and $175,000 of cash dividends received from consolidated subsidiaries in 2015, 2014 and 2013, respectively.

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