Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Accounting Policies [Abstract]

Summary of Estimated Useful Lives

Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows:

Building	Thirty-five years
Software	Two to three years
Computers and office equipment	Three years
Furniture and fixtures	Five years
Leasehold improvements	Shorter of useful life or remaining term of the lease

Summary of Calculation of Basic and Diluted Net Loss Per Share

The Company considered ASC 260-10, Earnings per Share, or ASC 260-10, which requires the presentation of both basic and diluted earnings per share in the consolidated statements of operations and comprehensive income (loss). The Company’s basic net income (loss) per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period, and, if there are dilutive securities, diluted income per share is computed by including common stock equivalents which includes shares issuable upon the exercise of stock options, net of shares assumed to have been purchased with the proceeds, using the treasury stock method.

	Three Months Ended March 31,
	2016		2017
	(unaudited) (in thousands, except share amounts and per share data)
Net income (loss) attributable to Endurance International Group Holdings, Inc.	$	21,811	$	(35,388	)
Net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic net income (loss) per share attributable to Endurance International Group Holdings Inc.	$	0.17	$	(0.26	)
Diluted net income (loss) per share attributable to Endurance International Group Holdings Inc.	$	0.16	$	(0.26	)
Weighted-average common shares used in computing net income (loss) per share attributable to Endurance International Group Holdings, Inc.:
Basic	132,178,693		134,935,153
Diluted	133,563,884		134,935,153

Summary of Weighted Average Potentially Dilutive Shares Excluded From Calculation of Diluted Loss Per Share

The following number of weighted average potentially dilutive shares were excluded from the calculation of diluted loss per share because the effect of including such potentially dilutive shares would have been anti-dilutive:

	Three Months Ended March 31,
	2016	2017
	(unaudited)
Restricted stock awards and units	5,874,094	3,974,080
Options	7,793,165	11,037,570
Total	13,667,259	15,011,650