Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 207,888	$ 193,441	$ 230,650	$ 214,879
Receivables, net	126,689	89,352
Other current assets	43,466	28,160
Total current assets	378,043	310,953
Property and equipment, at cost, net	86,784	88,158
Goodwill	79,629	79,327
Franchise rights and other identifiable intangibles, net	11,676	11,948
Notes receivable, net of allowances	92,195	82,572
Investments, employee benefit plans, at fair value	16,516	17,674
Investment in affiliates	0	0
Advances to affiliates	0	0
Deferred income taxes	38,631	42,434
Other assets	139,916	83,944
Total assets	843,390	717,010
Current liabilities
Accounts payable	74,925	64,431
Accrued expenses and other current liabilities	69,776	70,807
Deferred revenue	113,763	71,587
Current portion of long-term debt	833	1,191
Total current liabilities	259,297	208,016
Long-term debt	901,352	812,945
Deferred compensation and retirement plan obligations	20,873	22,859
Advances from affiliates	0	0
Deferred Income Taxes and Other Liabilities, Noncurrent	35,696	69,089
Total liabilities	1,217,218	1,112,909
Total shareholders’ (deficit) equity	(373,828)	(395,899)
Total liabilities and shareholders’ deficit	843,390	717,010
Parent
ASSETS
Cash and cash equivalents	17,928	13,529	25,613	25,290
Receivables, net	116,356	79,381
Other current assets	8,762	19,029
Total current assets	143,046	111,939
Property and equipment, at cost, net	44,399	37,857
Goodwill	65,812	60,620
Franchise rights and other identifiable intangibles, net	4,011	2,965
Notes receivable, net of allowances	13,663	18,866
Investments, employee benefit plans, at fair value	0	0
Investment in affiliates	500,804	473,448
Advances to affiliates	8,647	17,144
Deferred income taxes	27,830	10,664
Other assets	25,578	319
Total assets	833,790	733,822
Current liabilities
Accounts payable	12,777	12,359
Accrued expenses and other current liabilities	47,269	29,099
Deferred revenue	112,694	8,749
Current portion of long-term debt	0	0
Total current liabilities	172,740	50,207
Long-term debt	888,034	799,212
Deferred compensation and retirement plan obligations	0	0
Advances from affiliates	134,496	235,629
Deferred Income Taxes and Other Liabilities, Noncurrent	12,348	44,673
Total liabilities	1,207,618	1,129,721
Total shareholders’ (deficit) equity	(373,828)	(395,899)
Total liabilities and shareholders’ deficit	833,790	733,822
Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	782	19	29	25
Receivables, net	1,481	1,132
Other current assets	36,324	14,176
Total current assets	38,587	15,327
Property and equipment, at cost, net	26,124	33,575
Goodwill	0	5,193
Franchise rights and other identifiable intangibles, net	0	1,013
Notes receivable, net of allowances	42,773	38,957
Investments, employee benefit plans, at fair value	16,516	17,674
Investment in affiliates	57,126	37,182
Advances to affiliates	128,640	212,773
Deferred income taxes	12,855	33,936
Other assets	61,588	45,383
Total assets	384,209	441,013
Current liabilities
Accounts payable	58,608	48,238
Accrued expenses and other current liabilities	27,777	45,601
Deferred revenue	63	61,890
Current portion of long-term debt	62	430
Total current liabilities	86,510	156,159
Long-term debt	3,712	3,712
Deferred compensation and retirement plan obligations	20,862	22,849
Advances from affiliates	1,399	257
Deferred Income Taxes and Other Liabilities, Noncurrent	15,699	15,755
Total liabilities	128,182	198,732
Total shareholders’ (deficit) equity	256,027	242,281
Total liabilities and shareholders’ deficit	384,209	441,013
Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	189,178	179,893	205,008	189,564
Receivables, net	9,002	8,992
Other current assets	10,954	5,331
Total current assets	209,134	194,216
Property and equipment, at cost, net	16,261	16,726
Goodwill	13,817	13,514
Franchise rights and other identifiable intangibles, net	7,665	7,970
Notes receivable, net of allowances	35,759	24,749
Investments, employee benefit plans, at fair value	0	0
Investment in affiliates	0	0
Advances to affiliates	0	7,789
Deferred income taxes	0	0
Other assets	52,803	38,348
Total assets	335,439	303,312
Current liabilities
Accounts payable	3,690	3,987
Accrued expenses and other current liabilities	7,199	6,378
Deferred revenue	1,111	1,053
Current portion of long-term debt	771	761
Total current liabilities	12,771	12,179
Long-term debt	9,606	10,021
Deferred compensation and retirement plan obligations	11	10
Advances from affiliates	1,392	1,820
Deferred Income Taxes and Other Liabilities, Noncurrent	9,756	10,933
Total liabilities	33,536	34,963
Total shareholders’ (deficit) equity	301,903	268,349
Total liabilities and shareholders’ deficit	335,439	303,312
Eliminations
ASSETS
Cash and cash equivalents	0	0	$ 0	$ 0
Receivables, net	(150)	(153)
Other current assets	(12,574)	(10,376)
Total current assets	(12,724)	(10,529)
Property and equipment, at cost, net	0	0
Goodwill	0	0
Franchise rights and other identifiable intangibles, net	0	0
Notes receivable, net of allowances	0	0
Investments, employee benefit plans, at fair value	0	0
Investment in affiliates	(557,930)	(510,630)
Advances to affiliates	(137,287)	(237,706)
Deferred income taxes	(2,054)	(2,166)
Other assets	(53)	(106)
Total assets	(710,048)	(761,137)
Current liabilities
Accounts payable	(150)	(153)
Accrued expenses and other current liabilities	(12,469)	(10,271)
Deferred revenue	(105)	(105)
Current portion of long-term debt	0	0
Total current liabilities	(12,724)	(10,529)
Long-term debt	0	0
Deferred compensation and retirement plan obligations	0	0
Advances from affiliates	(137,287)	(237,706)
Deferred Income Taxes and Other Liabilities, Noncurrent	(2,107)	(2,272)
Total liabilities	(152,118)	(250,507)
Total shareholders’ (deficit) equity	(557,930)	(510,630)
Total liabilities and shareholders’ deficit	$ (710,048)	$ (761,137)