Selected Quarterly Financial Data (Unaudited) Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Data [Abstract]

Quarterly Financial Information 2015 & 2014

2015	Quarter Ended
	March 31,		June 30,		September 30,		December 31,
Net revenues	$	55,751	$	56,313	$	58,282	$	58,642
Investment and other gains	—		—		1,126		23,529
Net income attributable to common stockholders	$	29,683	$	31,182	$	33,600	$	54,397
Weighted average common shares outstanding:
Basic	37,558,067		37,566,221		37,566,221		37,727,868
Diluted	37,645,265		37,607,117		37,583,141		37,741,162
Earnings per common share:
Net income attributable to common stockholders - basic	$	.79	$	.83	$	.89	$	1.44
Net income attributable to common stockholders - diluted	$	.79	$	.83	$	.89	$	1.44

2016	Quarter Ended
	March 31,		June 30,		September 30,		December 31,
Net revenues	$	59,018	$	61,204	$	63,251	$	65,027
Investment and other gains	1,665		26,415		1,657		6,175
Net income attributable to common stockholders	$	32,725	$	44,595	$	33,032	$	41,188
Weighted average common shares outstanding:
Basic	38,401,647		38,520,221		39,283,919		39,847,860
Diluted	38,414,791		38,561,384		39,651,900		39,993,445
Earnings per common share:
Net income attributable to common stockholders - basic	$	.85	$	1.16	$	.84	$	1.03
Net income attributable to common stockholders - diluted	$	.85	$	1.16	$	.83	$	1.03