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Supplementary Data on Cash Flows (Tables)
 12 Months Ended
Dec. 31, 2014
Supplementary Data on Cash Flows [Abstract]  
Reconciliation of net income to net cash provided by operating activities
A reconciliation of net income to net cash provided by operating activities as presented in the Consolidated Statements of Cash Flows is as follows:
 
 
 
Year Ended December 31,
 
 
 
 
2014
 
 
 
2013
 
 
 
2012
 
 
 
 
 
 
 
 
 
 
 
Cash flows from operating activities
 
 
 
 
 
 
 
 
 
 
 
 
Net income
 
$
104,243
 
 
$
110,893
 
 
$
103,866
 
Adjustments to reconcile net income to net 
cash provided by operating activities:
 
 
 
 
 
 
 
 
 
 
 
 
Realized investment gains
 
 
(10,917
)
 
 
(22,245
)
 
 
(27,298
)
Increase in accrued investment income
 
 
(5,563
)
 
 
(1,898
)
 
 
(2,618
)
Increase in accrued expenses
 
 
1,513
 
 
 
1,157
 
 
 
13,589
 
Depreciation and amortization
 
 
7,958
 
 
 
7,680
 
 
 
7,892
 
Increase in insurance liabilities
 
 
153,423
 
 
 
143,542
 
 
 
127,992
 
Increase in premium receivables
 
 
(3,638
)
 
 
(4,018
)
 
 
(5,638
)
Increase in deferred policy acquisition costs
 
 
(12,662
)
 
 
(14,659
)
 
 
(13,989
)
(Increase) decrease in reinsurance recoverable
 
 
1,570
 
 
 
(1,289
)
 
 
872
 
Increase in income tax liabilities
 
 
9,745
 
 
 
7,099
 
 
 
29,752
 
Other
 
 
(23,739
)
 
 
(20,326
)
 
 
(31,572
)
Total adjustments
 
 
117,690
 
 
 
95,043
 
 
 
98,982
 
Net cash provided by operating activities
 
$
221,933
 
 
$
205,936
 
 
$
202,848