Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Investments available for sale, at fair value
Fixed maturities (amortized cost: 2017 — $1,705,463; 2016 — $1,497,186)	$ 1,710,057	$ 1,482,754
Short-term investments (amortized cost: 2017 — $130,984; 2016 — $132,352)	130,984	132,348
Total investments	1,841,041	1,615,102
Cash	27,670	27,531
Accrued investment income	10,776	9,488
Accounts receivable	26,648	21,632
Deferred policy acquisition costs	14,037	13,400
Property and equipment (at cost, less accumulated depreciation of $48,513 in 2017 and $46,543 in 2016)	7,955	8,119
Prepaid federal income tax	215,357	181,272
Other assets	9,409	6,454
Total assets	2,152,893	1,882,998
Liabilities
Reserve for losses and LAE	29,798	28,142
Unearned premium reserve	228,762	219,616
Net deferred tax liability	181,206	142,587
Credit facility borrowings (at carrying value, less unamortized deferred costs of $1,808 in 2017 and $0 in 2016)	173,192	100,000
Securities purchases payable	19,770	14,999
Other accrued liabilities	22,268	33,881
Total liabilities	654,996	539,225
Commitments and contingencies (see Note 6)
Common shares, $0.015 par value:
Authorized - 233,333; issued and outstanding - 93,424 shares in 2017 and 93,105 shares in 2016	1,401	1,397
Additional paid-in capital	920,452	918,296
Accumulated other comprehensive income (loss)	1,065	(12,255)
Retained earnings	574,979	436,335
Total stockholders’ equity	1,497,897	1,343,773
Total liabilities and stockholders’ equity	$ 2,152,893	$ 1,882,998