Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
OPERATING ACTIVITIES    
Net income $ 5,188 $ 19,441
Adjustments to reconcile net income to net cash provided by operating activities:    
Amortization of investment premium and discount 1,021 995
Depreciation 1,034 828
Acquisition costs capitalized (8,644) (9,652)
Amortization of deferred acquisition costs 8,865 7,901
Realized investment gains (317) (15,677)
Changes in assets and liabilities:    
Reinsurance recoverables (1,418) (1,329)
Future policy benefits 12,307 (1,200)
Policyholder account balances (7,737) (1,714)
Income taxes payable and deferred (1,144) 5,976
Other, net (4,071) (9,304)
Net cash provided (used) 5,084 (3,735)
Purchases:    
Fixed maturity securities (50,836) (128,592)
Equity securities (6,552) (705)
Mortgage loans (14,797) (11,292)
Real estate (8,483) (2,656)
Policy loans (3,271) (3,460)
Sales or maturities, calls, and principal paydowns:    
Fixed maturity securities 64,416 46,286
Equity securities 1,444 150
Mortgage loans 13,671 38,954
Real estate 342 47,328
Policy loans 4,595 4,261
Net sales (purchases) of short-term investments 10,310 (4,977)
Net acquisition of property and equipment (36) (72)
Net cash provided (used) 10,803 (14,775)
FINANCING ACTIVITIES    
Deposits on policyholder account balances 51,774 61,463
Withdrawals from policyholder account balances (65,574) (43,661)
Net transfers from separate accounts 142 1,358
Change in other deposits 1,759 (2,865)
Cash dividends to stockholders (2,976) (3,054)
Net change in treasury stock (366) 5
Net cash provided (used) (15,241) 13,246
Increase (decrease) in cash 646 (5,264)
Cash at beginning of year 7,026 10,436
Cash at end of period 7,672 5,172
Cash paid during the year for:    
Income taxes $ 3,500 $ 3,000