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Supplementary Data on Cash Flows
 12 Months Ended
Dec. 31, 2015
Supplemental Cash Flow Information [Abstract]  
Supplementary Data on Cash Flows
Note 16.  Supplementary Data on Cash Flows
 
A reconciliation of net income to net cash provided by operating activities as presented in the Statements of Cash Flows is as follows for the years ended December 31:
(in thousands)
 
 
 
 
2015
 
2014
 
2013
Cash flows from operating activities:
 
 
 
 
 
 
Net income
 
$
174,678

 
$
167,505

 
$
162,611

Adjustments to reconcile net income to net cash provided by operating activities:
 
 
 
 
 
 
Depreciation and amortization
 
16,461

 
15,656

 
14,998

Deferred income tax benefit
 
(14,584
)
 
(3,305
)
 
(5,002
)
Realized losses (gains) and impairments on investments
 
1,066

 
(952
)
 
(557
)
Equity in earnings of limited partnerships
 
(16,983
)
 
(10,929
)
 
(21,694
)
Net amortization of bond premium
 
8,160

 
7,225

 
6,864

(Decrease) increase in deferred compensation
 
(1,526
)
 
6,149

 
6,762

Limited partnership distributions
 
14,112

 
15,327

 
27,050

Increase in receivables from affiliates
 
(12,835
)
 
(34,778
)
 
(19,655
)
Decrease (increase) in accrued investment income
 
47

 
(915
)
 
(374
)
(Increase) decrease in federal income taxes recoverable
 
(499
)
 
(8,421
)
 
2,812

Decrease in prepaid pension
 
20,307

 
557

 
17,842

Decrease (increase) in prepaid expenses and other assets
 
1,193

 
(1,747
)
 
(5,831
)
Increase in accounts payable and accrued expenses
 
3,633

 
1,753

 
4,910

Increase in commissions payable
 
5,624

 
20,596

 
10,508

Increase in accrued agent bonuses
 
18,524

 
12,292

 
16,764

Net cash provided by operating activities
 
$
217,378

 
$
186,013

 
$
218,008