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v3.20.4

Parent Corporation Statements of Cash Flows (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income | $ 127,061 | $ 69,875 | $ 34,183 | $ 15,236 | $ 81,859 | $ 56,150 | $ 72,266 | $ 61,348 | $ 246,355 | $ 271,623 | $ 178,939
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  | 16,227 | 19,077 | 14,507
Undistributed losses of equity method investments |  |  |  |  |  |  |  |  | (12,408) | (12,773) | (8,341)
Amortization - other |  |  |  |  |  |  |  |  | 59,350 | 55,205 | 44,874
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |
Decrease in net federal income taxes |  |  |  |  |  |  |  |  | 7,708 | 7,721 | 2,428
Increase in other assets |  |  |  |  |  |  |  |  | (27,927) | (39,337) | (372)
(Decrease) increase in other liabilities |  |  |  |  |  |  |  |  | 27,897 | 34,998 | (13,343)
Investing Activities |  |  |  |  |  |  |  |  |  |  |
Purchase of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | (1,723,818) | (1,856,125) | (2,918,203)
Purchase of equity securities |  |  |  |  |  |  |  |  | (230,813) | (46,397) | (94,344)
Purchase of short-term investments |  |  |  |  |  |  |  |  | (5,762,725) | (6,087,909) | (4,259,734)
Purchase of other investments |  |  |  |  |  |  |  |  | (79,598) | (64,908) | (68,578)
Redemption and maturities of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | 1,019,132 | 626,686 | 638,916
Sale of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | 487,087 | 594,743 | 2,030,664
Sale of equity securities |  |  |  |  |  |  |  |  | 1,320 | 137,294 | 113,339
Sale of short-term investments |  |  |  |  |  |  |  |  | 5,635,463 | 6,129,885 | 4,101,530
Financing Activities |  |  |  |  |  |  |  |  |  |  |
Dividends to preferred stockholders |  |  |  |  |  |  |  |  | 0 | 0 | 0
Dividends to common stockholders |  |  |  |  |  |  |  |  | (54,486) | (47,675) | (42,097)
Acquisition of treasury stock |  |  |  |  |  |  |  |  | (7,053) | (8,164) | (6,556)
Net proceeds from stock purchase and compensation plans |  |  |  |  |  |  |  |  | 8,411 | 8,243 | 7,252
Preferred stock issued, net of issuance costs |  |  |  |  |  |  |  |  | 195,063 | 0 | 0
Cash, beginning of year |  |  |  | 300 |  |  |  |  | 300 |  |
Cash, end of year | 394 |  |  |  | 300 |  |  |  | 394 | 300 |
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 246,355 | 271,623 | 178,939
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |  |
Equity in undistributed income of subsidiaries, net of tax |  |  |  |  |  |  |  |  | (176,146) | (205,963) | (116,087)
Stock-based compensation expense |  |  |  |  |  |  |  |  | 16,227 | 19,077 | 14,507
Net realized and unrealized investment (gains) losses |  |  |  |  |  |  |  |  | (1,756) | (207) | 1,567
Undistributed losses of equity method investments |  |  |  |  |  |  |  |  | 672 | 0 | 0
Amortization - other |  |  |  |  |  |  |  |  | 1,080 | 4,614 | 567
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |
Decrease in accrued long-term stock compensation |  |  |  |  |  |  |  |  | (366) | (12,970) | (15,443)
Decrease in net federal income taxes |  |  |  |  |  |  |  |  | 5,549 | 1,651 | 11,246
Increase in other assets |  |  |  |  |  |  |  |  | (317) | (533) | (343)
(Decrease) increase in other liabilities |  |  |  |  |  |  |  |  | (390) | 3,919 | 1,712
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 90,908 | 81,211 | 76,665
Investing Activities |  |  |  |  |  |  |  |  |  |  |
Purchase of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | (89,726) | (153,482) | (75,046)
Purchase of equity securities |  |  |  |  |  |  |  |  | (157,411) | (10,824) | 0
Purchase of short-term investments |  |  |  |  |  |  |  |  | (523,961) | (1,116,766) | (207,115)
Purchase of other investments |  |  |  |  |  |  |  |  | (4,065) | 0 | 0
Redemption and maturities of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | 26,877 | 10,579 | 6,849
Sale of fixed income securities, available-for-sale |  |  |  |  |  |  |  |  | 23,276 | 20,189 | 45,099
Sale of equity securities |  |  |  |  |  |  |  |  | 0 | 10,828 | 0
Sale of short-term investments |  |  |  |  |  |  |  |  | 523,813 | 1,116,253 | 195,846
Capital contribution to subsidiaries |  |  |  |  |  |  |  |  | (30,000) | 0 | 0
Net cash used in investing activities |  |  |  |  |  |  |  |  | (231,197) | (123,223) | (34,367)
Financing Activities |  |  |  |  |  |  |  |  |  |  |
Dividends to preferred stockholders |  |  |  |  |  |  |  |  | 0 | 0 | 0
Dividends to common stockholders |  |  |  |  |  |  |  |  | (54,486) | (47,675) | (42,097)
Acquisition of treasury stock |  |  |  |  |  |  |  |  | (7,053) | (8,164) | (6,556)
Proceeds from borrowings |  |  |  |  |  |  |  |  | 50,000 | 290,757 | 0
Repayment of borrowings |  |  |  |  |  |  |  |  | (50,000) | (185,000) | 0
Net proceeds from stock purchase and compensation plans |  |  |  |  |  |  |  |  | 8,411 | 8,243 | 7,252
Preferred stock issued, net of issuance costs |  |  |  |  |  |  |  |  | 195,063 | 0 | 0
Principal payments of borrowings from subsidiaries |  |  |  |  |  |  |  |  | (1,552) | (16,354) | (926)
Net cash provided by (used in) financing activities |  |  |  |  |  |  |  |  | 140,383 | 41,807 | (42,327)
Net increase (decrease) in cash |  |  |  |  |  |  |  |  | 94 | (205) | (29)
Cash, beginning of year |  |  |  | $ 300 |  |  |  | $ 505 | 300 | 505 | 534
Cash, end of year | $ 394 |  |  |  | $ 300 |  |  |  | $ 394 | $ 300 | $ 505

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- Definition Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562 + Details
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