Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following is a summary of the elements used in calculating basic and diluted earnings per common share:

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Numerator:
Net income attributable to NGHC	$	166,574	$	77,876	$	267,333	$	169,634
Preferred stock dividends - nonconvertible	(7,875)		(7,875)		(15,750)		(15,750)
Preferred stock dividends - convertible	(1,050)		(1,050)		(1,050)		(1,050)
Numerator for basic EPS	157,649		68,951		250,533		152,834
Effect of dilutive securities:
Preferred stock dividends - convertible	1,050		1,050		1,050		1,050
Numerator for diluted EPS - after assumed conversions	$	158,699	$	70,001	$	251,583	$	153,884
Denominator:
Denominator for basic EPS - weighted-average shares outstanding	113,542,628		113,178,552		113,549,952		113,097,084
Effect of dilutive securities:
Employee stock options	1,325,757		1,882,001		1,391,006		1,910,829
RSUs	62,211		200,241		167,679		265,335
Convertible preferred stock	789,473		789,473		789,473		789,473
Dilutive potential common shares	2,177,441		2,871,715		2,348,158		2,965,637
Denominator for diluted EPS - weighted-average shares outstanding and assumed conversions	115,720,069		116,050,267		115,898,110		116,062,721
EPS attributable to NGHC common stockholders:
Basic EPS	$	1.39	$	0.61	$	2.21	$	1.35
Diluted EPS	$	1.37	$	0.60	$	2.17	$	1.33