Supplemental Guarantor Financial Information - Consolidated Statements of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 295,137	$ 237,113
Cost of revenue	148,749	136,476
Gross profit	146,388	100,637
Operating expense:
Sales and marketing	72,772	79,294
Engineering and development	20,362	16,255
General and administrative	39,080	40,279
Transactions expenses	580	31,120
Total operating expense	132,794	166,948
Income (loss) from operations	13,594	(66,311)
Interest expense and other income, net	39,398	18,827
Loss before income taxes and equity earnings of unconsolidated entities	(25,804)	(85,138)
Income tax expense (benefit)	5,774	(99,902)
Income (loss) before equity earnings of unconsolidated entities	(31,578)	14,764
Equity loss of unconsolidated entities, net of tax	0	683
Net income (loss)	(31,578)	14,081
Net loss attributable to non-controlling interest	3,810	(7,730)
Net income (loss) attributable to Endurance International Group Holdings, Inc.	(35,388)	21,811
Comprehensive income (loss):
Foreign currency translation adjustment	686	342
Unrealized loss on derivative	(216)	(1,511)
Total comprehensive loss	(34,918)	20,642
Eliminations
Income Statement [Abstract]
Revenue	(1,492)	(333)
Cost of revenue	(1,232)	(570)
Gross profit	(260)	237
Operating expense:
Sales and marketing	(3)	(6)
Engineering and development	0	0
General and administrative	0	0
Transactions expenses	0	0
Total operating expense	(3)	(6)
Income (loss) from operations	(257)	243
Interest expense and other income, net	0	0
Loss before income taxes and equity earnings of unconsolidated entities	(257)	243
Income tax expense (benefit)	0	0
Income (loss) before equity earnings of unconsolidated entities	(257)	243
Equity loss of unconsolidated entities, net of tax	(39,150)	24,600
Net income (loss)	38,893	(24,357)
Net loss attributable to non-controlling interest	0	0
Net income (loss) attributable to Endurance International Group Holdings, Inc.	38,893	(24,357)
Comprehensive income (loss):
Foreign currency translation adjustment	0	0
Unrealized loss on derivative	0	0
Total comprehensive loss	38,893	(24,357)
Parent Company | Reportable Legal Entities
Income Statement [Abstract]
Revenue	0	0
Cost of revenue	0	0
Gross profit	0	0
Operating expense:
Sales and marketing	0	0
Engineering and development	0	0
General and administrative	0	0
Transactions expenses	0	0
Total operating expense	0	0
Income (loss) from operations	0	0
Interest expense and other income, net	0	0
Loss before income taxes and equity earnings of unconsolidated entities	0	0
Income tax expense (benefit)	0	0
Income (loss) before equity earnings of unconsolidated entities	0	0
Equity loss of unconsolidated entities, net of tax	31,321	(13,839)
Net income (loss)	(31,321)	13,839
Net loss attributable to non-controlling interest	0	0
Net income (loss) attributable to Endurance International Group Holdings, Inc.	(31,321)	13,839
Comprehensive income (loss):
Foreign currency translation adjustment	0	0
Unrealized loss on derivative	0	0
Total comprehensive loss	(31,321)	13,839
Issuer | Reportable Legal Entities
Income Statement [Abstract]
Revenue	0	0
Cost of revenue	0	0
Gross profit	0	0
Operating expense:
Sales and marketing	0	0
Engineering and development	0	0
General and administrative	55	44
Transactions expenses	0	0
Total operating expense	55	44
Income (loss) from operations	(55)	(44)
Interest expense and other income, net	39,246	29,356
Loss before income taxes and equity earnings of unconsolidated entities	(39,301)	(29,400)
Income tax expense (benefit)	(14,517)	(11,216)
Income (loss) before equity earnings of unconsolidated entities	(24,784)	(18,184)
Equity loss of unconsolidated entities, net of tax	6,538	(32,023)
Net income (loss)	(31,322)	13,839
Net loss attributable to non-controlling interest	0	0
Net income (loss) attributable to Endurance International Group Holdings, Inc.	(31,322)	13,839
Comprehensive income (loss):
Foreign currency translation adjustment	0	0
Unrealized loss on derivative	(216)	(1,511)
Total comprehensive loss	(31,538)	12,328
Guarantor Subsidiaries | Reportable Legal Entities
Income Statement [Abstract]
Revenue	262,096	204,069
Cost of revenue	127,892	114,631
Gross profit	134,204	89,438
Operating expense:
Sales and marketing	68,068	54,229
Engineering and development	15,290	12,898
General and administrative	35,671	36,820
Transactions expenses	580	31,099
Total operating expense	119,609	135,046
Income (loss) from operations	14,595	(45,608)
Interest expense and other income, net	147	(10,440)
Loss before income taxes and equity earnings of unconsolidated entities	14,448	(35,168)
Income tax expense (benefit)	19,695	(89,134)
Income (loss) before equity earnings of unconsolidated entities	(5,247)	53,966
Equity loss of unconsolidated entities, net of tax	1,291	21,945
Net income (loss)	(6,538)	32,021
Net loss attributable to non-controlling interest	3,810	(7,730)
Net income (loss) attributable to Endurance International Group Holdings, Inc.	(10,348)	39,751
Comprehensive income (loss):
Foreign currency translation adjustment	0	0
Unrealized loss on derivative	0	0
Total comprehensive loss	(10,348)	39,751
Non-Guarantor Subsidiaries | Reportable Legal Entities
Income Statement [Abstract]
Revenue	34,533	33,377
Cost of revenue	22,089	22,415
Gross profit	12,444	10,962
Operating expense:
Sales and marketing	4,707	25,071
Engineering and development	5,072	3,357
General and administrative	3,354	3,415
Transactions expenses	0	21
Total operating expense	13,133	31,864
Income (loss) from operations	(689)	(20,902)
Interest expense and other income, net	5	(89)
Loss before income taxes and equity earnings of unconsolidated entities	(694)	(20,813)
Income tax expense (benefit)	596	448
Income (loss) before equity earnings of unconsolidated entities	(1,290)	(21,261)
Equity loss of unconsolidated entities, net of tax	0	0
Net income (loss)	(1,290)	(21,261)
Net loss attributable to non-controlling interest	0	0
Net income (loss) attributable to Endurance International Group Holdings, Inc.	(1,290)	(21,261)
Comprehensive income (loss):
Foreign currency translation adjustment	686	342
Unrealized loss on derivative	0	0
Total comprehensive loss	$ (604)	$ (20,919)