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Condensed Financial Information of Registrant (Schedule Of Condensed Financial Information Of Registrant, Statements Of Cash Flow) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Cash flows from operating activities: |  |  |
Net cash used in operating activities | $ 209,804 | $ 148,062 | $ 158,525
Equity securities: |  |  |
Purchases | (831,796) | (590,562) | (379,963)
Sales | 872,997 | 277,272 | 325,562
Increase in payable for securities, net | 1,702 | 1,919 | (9,137)
Other, net | 1,741 | 2,255 | 12,026
Net cash (used in) provided by investing activities | (18,351) | (69,745) | 124,615
Cash flows from financing activities: |  |  |
Dividends paid to shareholders | (134,776) | (134,105) | (132,142)
Excess tax benefit from exercise of stock options | 202 | 86 | 56
Payment to retire senior notes | 0 | 0 | (125,000)
Proceeds from stock options exercised | 1,446 | 2,492 | 1,951
Proceeds from bank loan | 50,000 | 0 | 20,000
Net cash used in financing activities | (83,128) | (131,527) | (253,135)
Net increase (decrease) in cash | 108,325 | (53,210) | 30,005
Cash: |  |  |
Beginning of year | 158,183 |  | 211,393
End of year | 266,508 | 158,183 |
SUPPLEMENTAL CASH FLOW DISCLOSURE |  |  |
Interest paid | 998 | 1,690 | 6,193
Income taxes paid (received) | 16,503 | 18,481 | 8,503
Parent Company [Member] |  |  |
Cash flows from operating activities: |  |  |
Net cash used in operating activities | (843) | (5,590) | (312)
Cash flows from investing activities: |  |  |
Capital contribution to controlled entities | (40,000) | 0 | 0
Dividends from subsidiaries | 120,000 | 145,000 | 270,000
Equity securities: |  |  |
Purchases | (25,038) | (14,102) | (50,056)
Sales | 25,798 | 7,308 | 43,520
Increase in payable for securities, net | 2,489 | 0 | 0
Net increase in short-term investments | 36,085 | (20,413) | (21,451)
Other, net | 770 | 304 | 1,047
Net cash (used in) provided by investing activities | 120,104 | 118,097 | 243,060
Cash flows from financing activities: |  |  |
Dividends paid to shareholders | (134,776) | (134,105) | (132,142)
Excess tax benefit from exercise of stock options | 202 | 86 | 56
Payment to retire senior notes | 0 | 0 | (125,000)
Proceeds from stock options exercised | 1,446 | 2,492 | 1,951
Proceeds from bank loan | 50,000 | 0 | 0
Net cash used in financing activities | (83,128) | (131,527) | (255,135)
Net increase (decrease) in cash | 36,133 | (19,020) | (12,387)
Cash: |  |  |
Beginning of year | 10,199 | 29,219 | 41,606
End of year | 46,332 | 10,199 | 29,219
SUPPLEMENTAL CASH FLOW DISCLOSURE |  |  |
Interest paid | 318 | 0 | 1,932
Income taxes paid (received) | $ (827) | $ 4,667 | $ (1,252)

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