Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Reconciliation of basic and diluted weighted average shares outstanding

The table below presents for the periods indicated a reconciliation of the numerators and denominators we used to compute basic and diluted net income per share for each class of our common stock:

	Three Months Ended September 30,
	2012				2011
	Class A		Class B		Class A		Class B
	(in thousands, except per share data)
Basic and diluted net income per share:
Numerator:
Allocation of net income	$	5,465	$	1,374	$	662	$	158
Denominator:
Weighted-average shares outstanding		20,041,620		5,576,775		19,976,954		5,576,775
Basic net income per share	$	0.27	$	0.25	$	0.03	$	0.03
Diluted net income per share:
Numerator:
Allocation of net income	$	5,465	$	1,374	$	662	$	158
Denominator:
Number of shares used in basic computation		20,041,620		5,576,775		19,976,954		5,576,775
Weighted-average shares effect of dilutive securities
Add: Director and employee stock options		268,476		—		—		—
Number of shares used in per share computations		20,310,096		5,576,775		19,976,954		5,576,775
Diluted net income per share	$	0.27	$	0.25	$	0.03	$	0.03

	Nine Months Ended September 30,
	2012				2011
	Class A		Class B		Class A		Class B
	(in thousands, except per share data)
Basic and diluted net income per share:
Numerator:
Allocation of net income	$	13,478	$	3,395	$	1,078	$	254
Denominator:
Weighted-average shares outstanding		20,026,652		5,576,775		20,005,149		5,576,775
Basic net income per share	$	0.67	$	0.61	$	0.05	$	0.05
Diluted net income per share:
Numerator:
Allocation of net income	$	13,478	$	3,395	$	1,078	$	254
Denominator:
Number of shares used in basic computation		20,026,652		5,576,775		20,005,149		5,576,775
Weighted-average shares effect of dilutive securities
Add: Director and employee stock options		310,117		—		—		—
Number of shares used in per share computations		20,336,769		5,576,775		20,005,149		5,576,775
Diluted net income per share	$	0.66	$	0.61	$	0.05	$	0.05

Reconciliation of diluted shares outstanding

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Number of shares excluded		1,222,000		6,332,167		1,219,000		6,332,167