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v3.3.1.900

Parent Corporation Statements of Cash Flows (Details) - USD ($) $ in Thousands | 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
Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income | $ 45,389 | $ 46,996 | $ 33,768 | $ 39,708 | $ 41,350 | $ 53,162 | $ 29,341 | $ 17,974 | $ 165,861 | $ 141,827 | $ 106,418
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  | 8,973 | 8,702 | 8,630
Loss on disposal of discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 997
Net realized gains |  |  |  |  |  |  |  |  | (13,171) | (26,599) | (20,732)
Amortization - other |  |  |  |  |  |  |  |  | 59,688 | 45,346 | 43,461
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |
(Increase) decrease in net federal income taxes |  |  |  |  |  |  |  |  | 25,004 | 31,323 | 14,834
(Decrease) increase in other assets and other liabilities |  |  |  |  |  |  |  |  | 42,699 | (33,490) | (16,642)
Net adjustments |  |  |  |  |  |  |  |  | 215,719 | 90,936 | 229,706
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 381,580 | 232,763 | 336,124
Investing Activities |  |  |  |  |  |  |  |  |  |  |
Purchase of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | (1,041,916) | (843,616) | (1,069,387)
Redemption and maturities of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | 567,445 | 482,816 | 513,804
Sale of fixed income securities, available for sale |  |  |  |  |  |  |  |  | 106,621 | 73,415 | 116,584
Purchase of short-term investments |  |  |  |  |  |  |  |  | (1,602,327) | (1,410,123) | (2,056,576)
Sale of short-term investments |  |  |  |  |  |  |  |  | 1,539,480 | 1,452,402 | 2,096,805
Sale of subsidiary |  |  |  |  |  |  |  |  | 0 | 0 | 1,225
Net cash 9used in) provided by investing activities |  |  |  |  |  |  |  |  | (391,543) | (169,468) | (391,025)
Financing Activities |  |  |  |  |  |  |  |  |  |  |
Dividends to stockholders |  |  |  |  |  |  |  |  | (31,052) | (28,428) | (27,416)
Acquisition of treasury stock |  |  |  |  |  |  |  |  | (4,182) | (3,563) | (3,716)
Proceeds from notes payable, net of debt issuance costs |  |  |  |  |  |  |  |  | 0 | 0 | 178,435
Net proceeds from stock purchase and compensation plans |  |  |  |  |  |  |  |  | 10,089 | 7,283 | 7,119
Excess tax benefits from share-based payment arrangements |  |  |  |  |  |  |  |  | 1,736 | 1,020 | 1,545
Repayment of notes payable |  |  |  |  |  |  |  |  | 0 | 0 | (100,000)
Net cash (used in) provided by financing activities |  |  |  |  |  |  |  |  | (13,098) | (39,529) | 54,884
Cash, beginning of year |  |  |  | 23,959 |  |  |  | 193 | 23,959 | 193 | 210
Cash, end of year | 898 |  |  |  | 23,959 |  |  |  | 898 | 23,959 | 193
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 165,861 | 141,827 | 106,418
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Equity In Undistributed Income Of Continuing Subsidiaries, Net Of Tax |  |  |  |  |  |  |  |  | (141,495) | (115,203) | (108,899)
Stock-based compensation expense |  |  |  |  |  |  |  |  | 8,973 | 8,702 | 8,630
Loss on disposal of discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 997
Net realized gains |  |  |  |  |  |  |  |  | 0 | (2) | 0
Amortization - other |  |  |  |  |  |  |  |  | 740 | 1,421 | 4,353
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |
Increase in accrued long-term stock compensation |  |  |  |  |  |  |  |  | 4,575 | 1,062 | 6,791
(Increase) decrease in net federal income taxes |  |  |  |  |  |  |  |  | (3,052) | 10,977 | (14,968)
(Decrease) increase in other assets and other liabilities |  |  |  |  |  |  |  |  | (214) | 1,045 | 1,204
Net adjustments |  |  |  |  |  |  |  |  | (130,473) | (91,998) | (101,892)
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 35,388 | 49,829 | 4,526
Investing Activities |  |  |  |  |  |  |  |  |  |  |
Purchase of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | (33,717) | (18,511) | (21,708)
Redemption and maturities of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | 21,578 | 23,210 | 6,432
Sale of fixed income securities, available for sale |  |  |  |  |  |  |  |  | 0 | 300 | 0
Purchase of short-term investments |  |  |  |  |  |  |  |  | (106,933) | (102,717) | (241,748)
Sale of short-term investments |  |  |  |  |  |  |  |  | 94,422 | 101,510 | 253,136
Capital contribution to subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | (57,125)
Sale of subsidiary |  |  |  |  |  |  |  |  | 0 | 0 | 1,225
Net cash 9used in) provided by investing activities |  |  |  |  |  |  |  |  | (24,650) | 3,792 | (59,788)
Financing Activities |  |  |  |  |  |  |  |  |  |  |
Dividends to stockholders |  |  |  |  |  |  |  |  | (31,052) | (28,428) | (27,416)
Acquisition of treasury stock |  |  |  |  |  |  |  |  | (4,182) | (3,563) | (3,716)
Proceeds from notes payable, net of debt issuance costs |  |  |  |  |  |  |  |  | 0 | 0 | 178,435
Net proceeds from stock purchase and compensation plans |  |  |  |  |  |  |  |  | 10,089 | 7,283 | 7,119
Excess tax benefits from share-based payment arrangements |  |  |  |  |  |  |  |  | 1,736 | 1,020 | 1,545
Repayment of notes payable |  |  |  |  |  |  |  |  | 0 | 0 | (100,000)
Principal payments of borrowings from subsidiaries |  |  |  |  |  |  |  |  | (2,798) | (13,759) | (722)
Net cash (used in) provided by financing activities |  |  |  |  |  |  |  |  | (26,207) | (37,447) | 55,245
Net (decrease) increase in cash |  |  |  |  |  |  |  |  | (15,469) | 16,174 | (17)
Cash, beginning of year |  |  |  | $ 16,367 |  |  |  | $ 193 | 16,367 | 193 | 210
Cash, end of year | $ 898 |  |  |  | $ 16,367 |  |  |  | $ 898 | $ 16,367 | $ 193

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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Definition The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.3(a)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 325 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6485959&loc=d3e22529-158502 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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