Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Summary of the Basic and Diluted Earnings Per Share

The following is a summary of the basic and diluted earnings per share calculation for each of the following years (in thousands except share data):

	Year Ended December 31,
	2016		2015		2014
Basic net income per share calculation:
Numerator – Net income	$	9,096,778	$	7,559,436	$	4,991,744
Denominator – Average shares of common stock outstanding		9,328,236		8,538,970		8,456,386
Basic net income per share	$	0.98	$	0.89	$	0.59
Diluted net income per share calculation:
Numerator – Net income	$	9,096,778	$	7,559,436	$	4,991,744
Denominator – Average shares of common stock outstanding		9,328,236		8,538,970		8,456,386
Dilutive shares contingently issuable		1,883,790		1,842,925		1,824,658
Average diluted shares of common stock outstanding		11,212,026		10,381,895		10,281,044
Diluted net income per share	$	0.81	$	0.73	$	0.49