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Schedule II - Primerica, Inc. (Parent Only) - Condensed Statements of Cash Flow (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income | $ 86,541 | $ 85,139 | $ 86,700 | $ 65,715 | $ 168,443 | $ 66,635 | $ 63,107 | $ 52,070 | $ 324,094 | $ 350,255 | $ 219,414
Adjustments to reconcile net income to cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |  |
Deferred tax provision |  |  |  |  |  |  |  |  | 2,590 | (53,788) | 44,316
Change in income taxes |  |  |  |  |  |  |  |  | 2,365 | (2,159) | 27,601
Realized investment (gains) losses, including other-than-temporary impairments | 1,651 | $ 126 | $ (1,313) | 1,656 | (1,079) | $ (22) | $ (104) | (134) | 2,121 | (1,339) | (4,088)
Accretion and amortization of investments |  |  |  |  |  |  |  |  | (1,894) | (1,596) | (1,411)
Share-based compensation |  |  |  |  |  |  |  |  | 17,251 | 15,267 | 13,442
Trading securities sold, matured, or called (acquired), net |  |  |  |  |  |  |  |  | (8,808) | 1,137 | (2,051)
Available-for-sale investments sold, matured or called: |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities — sold |  |  |  |  |  |  |  |  | 51,726 | 77,444 | 91,666
Fixed-maturity securities — matured or called |  |  |  |  |  |  |  |  | 362,413 | 223,088 | 254,585
Equity securities — sold |  |  |  |  |  |  |  |  |  | 5,771 | 8,572
Equity securities — sold |  |  |  |  |  |  |  |  | 2,093 |  |
Available-for-sale investments acquired: |  |  |  |  |  |  |  |  |  |  |
Fixed-maturity securities |  |  |  |  |  |  |  |  | (626,826) | (430,452) | (386,394)
Short-term investments |  |  |  |  |  |  |  |  | (8,169) |  |
Equity securities — acquired |  |  |  |  |  |  |  |  | (521) |  |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |
Dividends paid |  |  |  |  |  |  |  |  | (44,140) | (35,821) | (33,367)
Common stock repurchased |  |  |  |  |  |  |  |  | (210,146) | (150,038) | (150,057)
Tax withholdings on share-based compensation |  |  |  |  |  |  |  |  | (6,711) | (6,734) | (3,970)
Payment of deferred financing costs |  |  |  |  |  |  |  |  |  | (868) |
Change in cash and cash equivalents |  |  |  |  |  |  |  |  | (17,824) | 67,986 | 59,682
Cash and cash equivalents, beginning of period |  |  |  | 279,962 |  |  |  | 211,976 | 279,962 | 211,976 | 152,294
Cash and cash equivalents, end of period | 262,138 |  |  |  | 279,962 |  |  |  | 262,138 | 279,962 | 211,976
Supplemental disclosures of cash flow information: |  |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  |  |  |  |  | 27,899 | 27,816 | 27,992
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 324,094 | 350,255 | 219,414
Adjustments to reconcile net income to cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |  |
Equity in undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  | (44,095) | (145,113) | (89,820)
Deferred tax provision |  |  |  |  |  |  |  |  | (1,983) | 2,454 | 167
Change in income taxes |  |  |  |  |  |  |  |  | (6,151) | (1,235) | (523)
Realized investment (gains) losses, including other-than-temporary impairments |  |  |  |  |  |  |  |  | 128 | (179) | (1,088)
Accretion and amortization of investments |  |  |  |  |  |  |  |  | 103 | 149 | (118)
Share-based compensation |  |  |  |  |  |  |  |  | 1,365 | 1,254 | 1,227
Change in due to/from affiliates |  |  |  |  |  |  |  |  | 780 | (4,380) | (2,671)
Trading securities sold, matured, or called (acquired), net |  |  |  |  |  |  |  |  |  | (1,377) | (51)
Change in other operating assets and liabilities, net |  |  |  |  |  |  |  |  | (120) | (1,514) | 555
Net cash provided by (used in) operating activities |  |  |  |  |  |  |  |  | 274,121 | 200,314 | 127,092
Available-for-sale investments sold, matured or called: |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities — sold |  |  |  |  |  |  |  |  | 1,603 | 12,204 | 29,759
Fixed-maturity securities — matured or called |  |  |  |  |  |  |  |  | 104,836 | 56,678 | 79,914
Equity securities — sold |  |  |  |  |  |  |  |  |  | 36 |
Equity securities — sold |  |  |  |  |  |  |  |  | 150 |  |
Available-for-sale investments acquired: |  |  |  |  |  |  |  |  |  |  |
Fixed-maturity securities |  |  |  |  |  |  |  |  | (144,760) | (23,497) | (50,408)
Equity securities |  |  |  |  |  |  |  |  |  | (40) |
Short-term investments |  |  |  |  |  |  |  |  | (8,169) |  |
Equity securities — acquired |  |  |  |  |  |  |  |  | (265) |  |
Net cash provided by (used in) investing activities |  |  |  |  |  |  |  |  | (46,605) | 45,381 | 59,265
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |
Dividends paid |  |  |  |  |  |  |  |  | (44,140) | (35,821) | (33,367)
Common stock repurchased |  |  |  |  |  |  |  |  | (210,146) | (150,038) | (150,057)
Tax withholdings on share-based compensation |  |  |  |  |  |  |  |  | (6,711) | (6,734) | (3,970)
Payment of deferred financing costs |  |  |  |  |  |  |  |  |  | (868) |
Net cash provided by (used) in financing activities |  |  |  |  |  |  |  |  | (260,997) | (193,461) | (187,394)
Change in cash and cash equivalents |  |  |  |  |  |  |  |  | (33,481) | 52,234 | (1,037)
Cash and cash equivalents, beginning of period |  |  |  | $ 66,226 |  |  |  | $ 13,992 | 66,226 | 13,992 | 15,029
Cash and cash equivalents, end of period | $ 32,745 |  |  |  | $ 66,226 |  |  |  | 32,745 | 66,226 | 13,992
Supplemental disclosures of cash flow information: |  |  |  |  |  |  |  |  |  |  |
Interest paid |  |  |  |  |  |  |  |  | $ 18,146 | $ 17,813 | $ 17,813

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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow to acquire securities classified as trading securities and held for investment purposes. Excludes payments for trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from maturity, prepayment and call of 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 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562 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=109223946&loc=d3e3151-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow (outflow) from sales and purchases of trading securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3098-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: 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=109979856&loc=d3e26853-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from sale of 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 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562 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=109223946&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References No definition available. + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.3(a)) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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