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Earnings per Common Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Schedule of basic and diluted EPS

The calculation of basic and diluted EPS was as follows:

	Three Months Ended September 30,								Nine Months Ended September 30,
	2018				2017				2018				2017
	(In thousands, except per share data)
Basic earnings per Class A common share
Numerator:
Net income	$	4,573			$	13,639			$	104,431			$	73,659
Denominator:
Weighted-average Class A shares issued and outstanding	52,580				50,519				52,046				50,330
Basic earnings per Class A common share	$	0.09			$	0.27			$	2.01			$	1.46
Diluted earnings per Class A common share
Numerator:
Net income	$	4,573			$	13,639			$	104,431			$	73,659
Denominator:
Weighted-average Class A shares issued and outstanding	52,580				50,519				52,046				50,330
Dilutive potential common shares:
Stock options	214				790				372				764
Restricted stock units	1,032				1,292				1,223				1,404
Performance based restricted stock units	780				306				791				282
Employee stock purchase plan	9				16				5				8
Diluted weighted-average Class A shares issued and outstanding	54,615				52,923				54,437				52,788
Diluted earnings per Class A common share	$	0.08			$	0.26			$	1.92			$	1.40

Schedule of antidilutive shares

The following table shows the weighted-average number of shares excluded from the diluted EPS calculation:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In thousands)
Class A common stock
Options to purchase Class A common stock	—			56			—			9
Performance based restricted stock units	223			539			123			301
Total options and restricted stock units	223			595			123			310

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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