Revenue - Summary of Impact of Adoption of New Revenue Standards On Our Statements (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Assets
Accounts receivable, net	$ 133,895		$ 133,895			$ 120,553
Inventories	68,803		68,803			32,740
Prepaid expenses and other current assets	13,867		13,867			11,367
Deferred cost of revenue, current portion	1,504		1,504			3,007
Deferred cost of revenue, non-current portion						5,403
Liabilities:
Accounts payable and accrued liabilities	147,255		147,255			128,757
Deferred revenue, current portion	38,543		38,543		$ 42,950	34,501
Deferred revenue, non-current portion	13,376		13,376		12,023	48,511
Equity:
Accumulated deficit	(260,674)		(260,674)			(283,338)
Net Revenue:
Total net revenue	173,381	$ 124,782	466,767	$ 324,502
Cost of Revenue:
Total cost of revenue	94,388	74,887	246,910	198,130
Gross Profit:
Total gross profit	78,993	49,895	219,857	126,372
Operating Expenses:
Research and development	45,370	28,532	119,692	76,650
Sales and marketing	25,603	16,216	68,180	44,938
General and administrative	19,769	13,039	50,768	33,894
Total operating expenses	90,742	57,787	238,640	155,482
Loss from Operations	(11,749)	(7,892)	(18,783)	(29,110)
Net loss	(9,527)	(46,235)	(15,635)	(70,450)
Platform
Liabilities:
Deferred revenue, current portion	23,681		23,681			19,022
Deferred revenue, non-current portion	8,300		8,300			42,674
Platform | Services
Net Revenue:
Total net revenue	100,050	57,528	265,468	139,919
Cost of Revenue:
Total cost of revenue	29,504	12,962	78,498	33,083
Gross Profit:
Total gross profit	70,546	44,566	186,970	106,836
Player
Liabilities:
Deferred revenue, current portion	14,862		14,862			15,479
Deferred revenue, non-current portion	5,076		5,076			$ 5,837
Player | Goods
Net Revenue:
Total net revenue	73,331	67,254	201,299	184,583
Cost of Revenue:
Total cost of revenue	64,884	61,925	168,412	165,047
Gross Profit:
Total gross profit	8,447	$ 5,329	32,887	$ 19,536
Accounting Standards Update 2014-09
Assets
Accounts receivable, net					133,281
Inventories					32,632
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:
Accounts payable and accrued liabilities					130,007
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 receivable, net	115,423		115,423
Inventories	68,803		68,803
Prepaid expenses and other current assets	11,003		11,003
Deferred cost of revenue, current portion	3,963		3,963
Deferred cost of revenue, non-current portion	5,309		5,309
Liabilities:
Accounts payable and accrued liabilities	145,255		145,255
Deferred revenue, current portion	34,159		34,159
Deferred revenue, non-current portion	47,160		47,160
Equity:
Accumulated deficit	(301,642)		(301,642)
Net Revenue:
Total net revenue	169,342		454,366
Cost of Revenue:
Total cost of revenue	91,564		237,138
Gross Profit:
Total gross profit	77,778		217,228
Operating Expenses:
Research and development	45,370		119,692
Sales and marketing	25,603		68,180
General and administrative	19,769		50,768
Total operating expenses	90,742		238,640
Loss from Operations	(12,964)		(21,412)
Net loss	(10,742)		(18,264)
Accounting Standards Update 2014-09 | Balances Without Adoption of The New Revenue Standard | Platform | Services
Net Revenue:
Total net revenue	95,056		253,345
Cost of Revenue:
Total cost of revenue	26,110		69,020
Gross Profit:
Total gross profit	68,946		184,325
Accounting Standards Update 2014-09 | Balances Without Adoption of The New Revenue Standard | Player | Goods
Net Revenue:
Total net revenue	74,286		201,021
Cost of Revenue:
Total cost of revenue	65,454		168,118
Gross Profit:
Total gross profit	8,832		32,903
Accounting Standards Update 2014-09 | Impact of Adoption Higher / (Lower)
Assets
Accounts receivable, net	18,472		18,472		12,728
Inventories					(108)
Prepaid expenses and other current assets	2,864		2,864		4,113
Deferred cost of revenue, current portion	(2,459)		(2,459)		(1,076)
Deferred cost of revenue, non-current portion	(5,309)		(5,309)		(3,885)
Liabilities:
Accounts payable and accrued liabilities	2,000		2,000		1,250
Deferred revenue, current portion	4,384		4,384		8,449
Deferred revenue, non-current portion	(33,784)		(33,784)		(36,488)
Equity:
Accumulated deficit	40,968		40,968		$ 38,339
Net Revenue:
Total net revenue	4,039		12,401
Cost of Revenue:
Total cost of revenue	2,824		9,772
Gross Profit:
Total gross profit	1,215		2,629
Operating Expenses:
Loss from Operations	1,215		2,629
Net loss	1,215		2,629
Accounting Standards Update 2014-09 | Impact of Adoption Higher / (Lower) | Platform | Services
Net Revenue:
Total net revenue	4,994		12,123
Cost of Revenue:
Total cost of revenue	3,394		9,478
Gross Profit:
Total gross profit	1,600		2,645
Accounting Standards Update 2014-09 | Impact of Adoption Higher / (Lower) | Player | Goods
Net Revenue:
Total net revenue	(955)		278
Cost of Revenue:
Total cost of revenue	(570)		294
Gross Profit:
Total gross profit	$ (385)		$ (16)