CONSOLIDATED STATEMENTS OF OPERATIONS shares in Thousands, $ in Thousands, PLN in Millions	1 Months Ended		3 Months Ended								12 Months Ended
	Jul. 31, 2017 USD ($)	Jul. 31, 2017 PLN	Dec. 31, 2017 USD ($) $ / shares shares	Sep. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Mar. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares
Operating revenues:
Advertising											$ 2,505,257	$ 2,416,403	$ 2,062,530
Distribution											955,404	894,367	874,984
Other											101,146	90,665	80,713
Total operating revenues			$ 956,116	$ 825,525	$ 925,046	$ 855,120	$ 888,701	$ 803,085	$ 892,771	$ 816,878	3,561,807	3,401,435	3,018,227
Operating expenses:
Cost of services, excluding depreciation and amortization			356,812	318,292	299,851	279,039	328,355	298,207	286,999	279,667	1,253,994	1,193,228	987,357
Selling, general and administrative			237,071	224,192	212,397	207,370	215,959	200,820	191,133	198,821	881,030	806,733	785,179
Depreciation			14,993	14,736	13,660	14,960	17,803	20,370	16,089	17,297	58,349	71,559	73,112
Amortization			26,861	17,400	25,058	24,197	40,955	25,771	25,654	31,062	93,516	123,442	68,647
Goodwill write-down			505				57,878				505	57,878
Total operating expenses			636,242	574,620	550,966	525,566	660,950	545,168	519,875	526,847	2,287,394	2,252,840	1,914,295
Operating income			319,874	250,905	374,080	329,554	227,751	257,917	372,896	290,031	1,274,413	1,148,595	1,103,932
Interest expense, net			(21,612)	(23,092)	(24,203)	(24,252)	(29,912)	(32,609)	(33,175)	(33,745)	(93,159)	(129,441)	(108,047)
Equity in earnings of affiliates			9,577	8,758	20,974	20,449	15,519	8,473	21,712	25,678	59,758	71,382	80,916
(Loss) gain on derivatives			(1,848)	(3,446)	(3,672)	(2,336)	4,008	2,827	8,267	2,766	(11,302)	17,868	50,256
(Loss) gain on sale of investments	$ 1,300	PLN 5.6		(2,442)	1,416				(16,373)	208,197	(1,026)	191,824
Miscellaneous, net			19,951	2,854	32,181	27,540	(28,120)	21,276	(21,672)	6,066	82,526	(22,450)	(5,193)
Income from operations before income taxes			325,942	233,537	400,776	350,955	189,246	257,884	331,655	498,993	1,311,210	1,277,778	1,121,864
Provision for income taxes			210,166	70,454	115,099	101,140	96,937	76,043	98,303	159,047	496,859	430,330	343,391
Net income			115,776	163,083	285,677	249,815	92,309	181,841	233,352	339,946	814,351	847,448	778,473
Less: net income attributable to non-controlling interests			(49,904)	(38,995)	(51,602)	(49,915)	(40,216)	(35,844)	(48,744)	(49,049)	(190,416)	(173,853)	(171,645)
Net income attributable to SNI			$ 65,872	$ 124,088	$ 234,075	$ 199,900	$ 52,093	$ 145,997	$ 184,608	$ 290,897	$ 623,935	$ 673,595	$ 606,828
Basic net income per share:
Basic (in dollars per share) | $ / shares			$ 0.51	$ 0.95	$ 1.80	$ 1.54	$ 0.40	$ 1.13	$ 1.42	$ 2.25	$ 4.79	$ 5.20	$ 4.68
Diluted net income per share:
Diluted (in dollars per share) | $ / shares			$ 0.50	$ 0.95	$ 1.79	$ 1.53	$ 0.40	$ 1.12	$ 1.42	$ 2.24	$ 4.76	$ 5.18	$ 4.66
Weighted average shares outstanding:
Basic | shares			130,392	130,313	130,233	129,921	129,661	129,586	129,562	129,295	130,217	129,529	129,665
Diluted | shares			131,353	131,262	130,884	130,743	130,350	130,124	130,141	129,790	131,063	130,104	130,255