Revenue - Summary of Impact of Adoption of New Revenue Standards On Our Statements (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Assets
Accounts receivables, net	$ 183,078				$ 120,553				$ 183,078	$ 120,553
Prepaid expenses and other current assets	15,374				11,367				15,374	11,367
Deferred cost of revenue, current portion	1,188				3,007				1,188	3,007
Deferred cost of revenue, non-current portion					5,403					5,403
Liabilities:
Accrued liabilities	91,986				72,344				91,986	72,344
Deferred revenue, current portion	45,442				34,501				45,442	34,501		$ 42,950
Deferred revenue, non-current portion	19,594				48,511				19,594	48,511		12,023
Equity:
Accumulated deficit	(253,896)				(283,338)				(253,896)	(283,338)
Net Revenue:
Total net revenue	275,739	$ 173,381	$ 156,810	$ 136,576	188,261	$ 124,782	$ 99,627	$ 100,093	742,506	512,763	$ 398,649
Cost of Revenue:
Total cost of revenue									410,358	312,930	277,604
Gross Profit:
Total gross profit	112,291	$ 78,993	$ 77,752	$ 63,112	73,461	$ 49,895	$ 37,637	$ 38,840	332,148	199,833	121,045
Operating Expenses:
Research and development									170,692	107,945	76,177
Sales and marketing									102,780	64,069	52,888
General and administrative									71,972	47,435	35,341
Total operating expenses									345,444	219,449	164,406
Loss from Operations									(13,296)	(19,616)	(43,361)
Net loss									(8,857)	(63,509)	(42,758)
Platform
Liabilities:
Deferred revenue, current portion	28,569				19,022				28,569	19,022
Deferred revenue, non-current portion	12,783				42,674				12,783	42,674
Platform | Services
Net Revenue:
Total net revenue									416,863	225,356	104,720
Cost of Revenue:
Total cost of revenue									120,543	54,826	27,783
Gross Profit:
Total gross profit									296,320	170,530	76,937
Player
Liabilities:
Deferred revenue, current portion	16,873				15,479				16,873	15,479
Deferred revenue, non-current portion	6,811				$ 5,837				6,811	5,837
Player | Goods
Net Revenue:
Total net revenue									325,643	287,407	293,929
Cost of Revenue:
Total cost of revenue									289,815	258,104	249,821
Gross Profit:
Total gross profit									35,828	$ 29,303	$ 44,108
Accounting Standards Update 2014-09
Assets
Accounts receivables, net												133,281
Prepaid expenses and other current assets												15,480
Deferred cost of revenue, current portion												1,931
Deferred cost of revenue, non-current portion												1,518
Liabilities:
Deferred revenue, current portion												42,950
Deferred revenue, non-current portion												12,023
Equity:
Accumulated deficit												(244,999)
Accounting Standards Update 2014-09 | Balances Without Adoption of The New Revenue Standard
Assets
Accounts receivables, net	162,712								162,712
Prepaid expenses and other current assets	14,728								14,728
Deferred cost of revenue, current portion	3,615								3,615
Deferred cost of revenue, non-current portion	5,260								5,260
Liabilities:
Accrued liabilities	89,646								89,646
Deferred revenue, current portion	51,352								51,352
Deferred revenue, non-current portion	49,559								49,559
Equity:
Accumulated deficit	(300,756)								(300,756)
Net Revenue:
Total net revenue									717,094
Cost of Revenue:
Total cost of revenue									395,314
Gross Profit:
Total gross profit									321,780
Operating Expenses:
Research and development									170,692
Sales and marketing									100,933
General and administrative									71,972
Total operating expenses									343,597
Loss from Operations									(21,817)
Net loss									(17,378)
Accounting Standards Update 2014-09 | Balances Without Adoption of The New Revenue Standard | Platform | Services
Net Revenue:
Total net revenue									391,677
Cost of Revenue:
Total cost of revenue									105,423
Gross Profit:
Total gross profit									286,254
Accounting Standards Update 2014-09 | Balances Without Adoption of The New Revenue Standard | Player | Goods
Net Revenue:
Total net revenue									325,417
Cost of Revenue:
Total cost of revenue									289,891
Gross Profit:
Total gross profit									35,526
Accounting Standards Update 2014-09 | Impact of Adoption Higher / (Lower)
Assets
Accounts receivables, net	20,366								20,366			12,728
Prepaid expenses and other current assets	646								646			4,113
Deferred cost of revenue, current portion	(2,427)								(2,427)			(1,076)
Deferred cost of revenue, non-current portion	(5,260)								(5,260)			(3,885)
Liabilities:
Accrued liabilities	2,340								2,340
Deferred revenue, current portion	(5,910)								(5,910)			8,449
Deferred revenue, non-current portion	(29,965)								(29,965)			(36,488)
Equity:
Accumulated deficit	$ 46,860								46,860			$ 38,339
Net Revenue:
Total net revenue									25,412
Cost of Revenue:
Total cost of revenue									15,044
Gross Profit:
Total gross profit									10,368
Operating Expenses:
Sales and marketing									1,847
Total operating expenses									1,847
Loss from Operations									8,521
Net loss									8,521
Accounting Standards Update 2014-09 | Impact of Adoption Higher / (Lower) | Platform | Services
Net Revenue:
Total net revenue									25,186
Cost of Revenue:
Total cost of revenue									15,120
Gross Profit:
Total gross profit									10,066
Accounting Standards Update 2014-09 | Impact of Adoption Higher / (Lower) | Player | Goods
Net Revenue:
Total net revenue									226
Cost of Revenue:
Total cost of revenue									(76)
Gross Profit:
Total gross profit									$ 302