Additional Information - Financial Statement Schedule I Condensed Financial Information of Parent Company (Tables)

12 Months Ended

Dec. 31, 2015

Additional Information - Financial Statement Schedule I Condensed Financial Information of Parent Company [Abstract]

Condensed Financial Information of Parent Company Balance Sheets

	December 31,
	2014		2015
ASSETS
Current assets:
Cash and cash equivalents	$	1,242,129	$	385,524
Restricted cash		-		-
Short-term investments		6,839		180
Prepaid expenses and other current assets		111,872		178,689
Amounts due from subsidiaries and VIEs		459,303		1,081,115
Deferred tax assets - current		412		103
Total current assets		1,820,555		1,645,611
Acquired intangible assets, net		1,205		828
Investments in subsidiaries and VIEs		799,123		1,157,765
Long-term investments		45,211		31,051
Other noncurrent assets		26,964		21,687
Deferred tax assets - noncurrent		103		-
TOTAL ASSETS	$	2,693,161	$	2,856,942
LIABILITIES
Current liabilities:
Accrued expenses and other current liabilities		12,455		6,206
Deferred revenue-current		1,539		385
Amounts due to subsidiaries and VIEs		15,184		23,471
Long-term debt-current portion		-		1,635,000
Total current liabilities		29,178		1,665,062
Deferred revenue-noncurrent		385		-
Long-term debt		1,635,000		-
TOTAL LIABILITIES	$	1,664,563	$	1,665,062

	December 31,
	2014			2015
EQUITY
Qihoo 360 Technology Co. Ltd. shareholders' equity
Class A ordinary shares ($0.001 par value; 378,000,000 and 378,000,000 shares authorized as of December 31, 2014 and 2015, respectively; 147,485,168 and 151,592,057 shares issued and outstanding as of December 31, 2014 and 2015, respectively)	$	147		$	152
Class B ordinary shares ($0.001 par value; 122,000,000 and 122,000,000 shares authorized as of December 31, 2014 and 2015, respectively; 45,931,163 and 42,568,349 shares issued and outstanding as of December 31, 2014 and 2015, respectively)		46			43
Treasury stock		(139	)		(97,623	)
Additional paid-in capital		669,760			668,711
Accumulated other comprehensive loss		(11,772	)		(56,927	)
Retained earnings		370,556			677,524
Total shareholders' equity		1,028,598			1,191,880
TOTAL EQUITY		1,028,598			1,191,880
TOTAL LIABILITIES AND EQUITY	$	2,693,161		$	2,856,942

Condensed Financial Information of Parent Company Statements of Operations

	For the years ended December 31,
	2013			2014			2015
Operating expenses:
Selling and marketing	$	15,519		$	15,666		$	14,511
General and administrative		73,372			19,305			17,155
Product development		38,211			59,375			55,366
Total operating expenses		127,102			94,346			87,032
Loss from operations		(127,102	)		(94,346	)		(87,032	)
Interest income		6,341			20,264			11,532
Interest expense		(5,551	)		(24,010	)		(32,351	)
Other income		1,197			1,447			1,539
Exchange gain (loss)		5,100			(11,520	)		1,706
Gain(loss) in connection with short-term investments		327			10,230			(7,012	)
Gain in connection with long-term investments		413			-			363
Loss before income tax expense and earnings from subsidiaries and VIEs		(119,275	)		(97,935	)		(111,255	)
Income in earnings of subsidiaries and VIEs		219,247			321,088			418,635
Income before income tax expense		99,972			223,153			307,380
Income tax expense		(320	)		(385	)		(412	)
Net income attributable to Qihoo 360 Technology Co. Ltd.	$	99,652		$	222,768		$	306,968

Condensed Financial Information of Parent Company Statements of Comprehensive Income

	For the years ended December 31,
	2013		2014			2015
Net income	$	99,652	$	222,768		$	306,968
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments		11,266		(42,342	)		(54,032	)
Unrealized gain (loss) on available-for-sale investments		-		10,190			(2,838	)
Less: reclassification adjustment for gains recorded in net income		-		-			11,715
Other comprehensive income (loss)		11,266		(32,152	)		(45,155	)
Comprehensive income		110,918		190,616			261,813
Comprehensive income attributable to Qihoo 360 Technology Co. Ltd.	$	110,918	$	190,616		$	261,813

Condensed Financial Information of Parent Company Statements of Changes in Equity

																	Total
																	Qihoo 360
												Accumulated					Technology
									Additional			other					Co. Ltd.
	Ordinary shares								paid-in			comprehensive			Retained		shareholders'
	Shares			Amount		Treasury Stock			capital			income (loss)			earnings		equity
Balance as of January 1, 2013		184,157,097			184		-			420,662			9,114			48,136		478,096
Issuance of ordinary shares in connection with share-based compensation arrangements		561,517			1		-			-			-			-		1
Share repurchase		(14,544	)		-		(139	)		-			-			-		(139	)
Share-based compensation		-			-		-			121,087			-			-		121,087
Issuance of ordinary shares in connection with business acquisition		204,466			-		-			7,864			-			-		7,864
Issuance of ordinary shares in connection with exercise of options		3,982,385			4		-			19,067			-			-		19,071
Disposal of noncontrolling interest in subsidiaries		-			-		-			(5	)		-			-		(5	)
Net income		-			-		-			-			-			99,652		99,652
Other comprehensive income		-			-		-			-			11,266			-		11,266
Balance as of December 31, 2013		188,890,921			189		(139	)		568,675			20,380			147,788		736,893
Issuance of ordinary shares in connection with share-based compensation arrangements		2,691,753			2		-			-			-			-		2
Share-based compensation		-			-		-			90,392			-			-		90,392
Issuance of ordinary shares in connection with exercise of options		1,833,657			2		-			15,064			-			-		15,066
Acquisition of additional equity interests in subsidiaries		-			-		-			(4,371	)		-			-		(4,371	)
Net income		-			-		-			-			-			222,768		222,768
Other comprehensive loss		-			-		-			-			(32,152	)		-		(32,152	)

																	Total
																	Qihoo 360
												Accumulated					Technology
									Additional			other					Co. Ltd.
	Ordinary shares								paid-in			comprehensive			Retained		shareholders'
	Shares			Amount		Treasury Stock			capital			income (loss)			earnings		equity
Balance as of December 31, 2014		193,416,331		$	193	$	(139	)	$	669,760		$	(11,772	)	$	370,556	$	1,028,598
Net income		-			-		-			-			-			306,968		306,968
Foreign currency translation adjustments		-			-		-			-			(54,032	)		-		(54,032	)
Net change in unrealized losses on available-for-sale investment securities		-			-		-			-			8,877			-		8,877
Share cancellation		(3	)		-		-			-			-			-		-
Share repurchase & reissuance		-			-		(97,484	)		(102,516	)		-			-		(200,000	)
Share-based compensation		-			-		-			113,113			-			-		113,113
Issuance of ordinary shares in connection with share-based compensation arrangements		248,543			1		-			-			-			-		1
Issuance of ordinary shares in connection with exercise of options		495,535			1		-			19,111			-			-		19,112
Issuance of ordinary shares in connection with business acquisition		-			-		-
Change of subsidiaries’ non-controlling interests in connection with capital injection		-			-		-			(34,310	)		-			-		(34,310	)
Disposal of non-controlling interest in subsidiaries		-			-		-			3,553			-			-		3,553
Balance as of December 31, 2015		194,160,406		$	195	$	(97,623	)	$	668,711		$	(56,927	)	$	677,524	$	1,191,880

Condensed Financial Information of Parent Company Statements of Cash Flow

	For the years ended December 31,
	2013			2014			2015
Cash flows from operating activities
Net income	$	99,652		$	222,768		$	306,968
Adjustments to reconcile net income to net cash provided by operating activities
Share-based compensation		121,087			89,686			88,225
Gain from investments in subsidiaries and VIEs		(219,247	)		(321,089	)		(418,635	)
Depreciation and amortization		1,476			1,243			1,117
(Gain) loss in connection with short-term investments		(327	)		(10,230	)		7,012
Gain in connection with long-term investments		(413	)		-			(363	)
Prepaid expenses and other current assets		463			(3,788	)		4,690
Deferred taxes		(53	)		174			412
Other noncurrent assets		743			3,373			5,277
Accrued expenses and other current liabilities		5,488			5,694			(6,249	)
Deferred revenue		215			(662	)		(1,539	)
Amount due from/to subsidiaries and VIEs		(128,738	)		(280,582	)		(613,525	)
Net cash used in operating activities		(119,654	)		(293,413	)		(626,610	)
Cash flows from investing activities
Restricted cash		-			300			-
Purchase of intangible assets		(1,500	)		-			(20	)
Purchase of short-term investments		(510	)		(30,025	)		(28	)
Proceeds from sale of short-term investments		762			35,335			22,703
Capital contribution for long-term investments		(15,760	)		(39,928	)		(82	)
Dividends received from investments		413			-			451
Investment in subsidiaries		-			(53,771	)		97
Net cash (used in) provided by investing activities	$	(16,595	)	$	(88,089	)	$	23,121

	For the years ended December 31,
	2013		2014			2015
Cash flows from financing activities
Proceeds from issuance of Convertible Senior Notes (net of issuance costs of $12,150, $18,630 and $nil  in 2013, 2014 and 2015, respectively)		587,850		1,016,370			-
Deferred payment for acquisition of business		-		-			(2,202	)
Proceeds from exercise of share options		23,678		15,947			17,896
Payment for share repurchase		-		(104,201	)		(268,810	)
Net cash provided by(used in) financing activities		611,528		928,116			(253,116	)
Net increase (decrease) in cash and cash equivalents		475,279		546,614			(856,605	)
Cash and cash equivalents at beginning of year		220,236		695,515			1,242,129
Cash and cash equivalents at end of year	$	695,515	$	1,242,129		$	385,524