Condensed Consolidating Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 200,544	$ 214,879	$ 174,878	$ 167,795
Receivables, net	102,013	91,681
Total current assets	357,272	351,414
Property and equipment, at cost, net	80,057	77,309
Goodwill	65,813	65,813
Franchise rights and other identifiable intangibles, net	8,001	8,912
Notes receivable, net of allowances	48,781	40,441
Investments, employee benefit plans, at fair value	17,916	17,539
Deferred income taxes	18,921	20,546
Other assets	64,361	65,296
Total assets	661,122	647,270
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	54,631	57,124
Accrued expenses	39,414	63,530
Deferred revenue	73,908	66,382
Current portion of long-term debt	12,362	12,349
Deferred compensation and retirement plan obligations	177	628
Total current liabilities	181,888	200,098
Long-term debt	799,628	782,082
Deferred compensation and retirement plan obligations	24,259	23,987
Other liabilities	68,840	69,904
Total liabilities	1,074,615	1,076,071
Total shareholders’ (deficit) equity	(413,493)	(428,801)
Total liabilities and shareholders’ deficit	661,122	647,270
Parent [Member]
ASSETS
Cash and cash equivalents	5,460	25,290	10,363	9,785
Receivables, net	92,210	82,195
Other current assets	15,840	25,152
Total current assets	113,510	132,637
Property and equipment, at cost, net	28,756	25,300
Goodwill	60,620	60,620
Franchise rights and other identifiable intangibles, net	3,766	4,380
Notes receivable, net of allowances	11,783	11,847
Investments, employee benefit plans, at fair value	0	0
Investment in affiliates	438,965	424,600
Advances to affiliates	16,594	15,670
Deferred income taxes	11,706	9,418
Other assets	6,691	7,228
Total assets	692,391	691,700
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	10,035	15,588
Accrued expenses	19,294	28,719
Deferred revenue	12,620	8,467
Current portion of long-term debt	11,250	11,250
Deferred compensation and retirement plan obligations	0	0
Other current liabilities	0	0
Total current liabilities	53,199	64,024
Long-term debt	785,665	767,760
Deferred compensation and retirement plan obligations	0	0
Advances from affiliates	219,024	237,973
Other liabilities	47,996	50,744
Total liabilities	1,105,884	1,120,501
Total shareholders’ (deficit) equity	(413,493)	(428,801)
Total liabilities and shareholders’ deficit	692,391	691,700
Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	20	25	298	569
Receivables, net	1,856	1,194
Other current assets	44,814	33,585
Total current assets	46,690	34,804
Property and equipment, at cost, net	37,171	37,675
Goodwill	5,193	5,193
Franchise rights and other identifiable intangibles, net	1,323	1,479
Notes receivable, net of allowances	36,319	27,895
Investments, employee benefit plans, at fair value	17,916	17,539
Investment in affiliates	29,443	31,139
Advances to affiliates	201,673	222,500
Deferred income taxes	7,132	10,429
Other assets	25,009	23,891
Total assets	407,869	412,544
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	41,405	37,970
Accrued expenses	18,140	32,649
Deferred revenue	60,672	57,339
Current portion of long-term debt	725	718
Deferred compensation and retirement plan obligations	177	628
Other current liabilities	10,406	15,843
Total current liabilities	131,525	145,147
Long-term debt	3,783	3,966
Deferred compensation and retirement plan obligations	24,246	23,978
Advances from affiliates	414	341
Other liabilities	18,044	16,116
Total liabilities	178,012	189,548
Total shareholders’ (deficit) equity	229,857	222,996
Total liabilities and shareholders’ deficit	407,869	412,544
Non-Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	195,064	189,564	164,217	157,441
Receivables, net	7,947	8,292
Other current assets	3,071	1,875
Total current assets	206,082	199,731
Property and equipment, at cost, net	14,130	14,334
Goodwill	0	0
Franchise rights and other identifiable intangibles, net	2,912	3,053
Notes receivable, net of allowances	679	699
Investments, employee benefit plans, at fair value	0	0
Investment in affiliates	0	0
Advances to affiliates	8,706	7,793
Deferred income taxes	83	699
Other assets	32,661	34,177
Total assets	265,253	260,486
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	3,191	3,566
Accrued expenses	1,980	2,162
Deferred revenue	616	576
Current portion of long-term debt	387	381
Deferred compensation and retirement plan obligations	0	0
Other current liabilities	0	0
Total current liabilities	6,174	6,685
Long-term debt	10,180	10,356
Deferred compensation and retirement plan obligations	13	9
Advances from affiliates	7,535	7,649
Other liabilities	2,800	3,044
Total liabilities	26,702	27,743
Total shareholders’ (deficit) equity	238,551	232,743
Total liabilities and shareholders’ deficit	265,253	260,486
Eliminations [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0
Other current assets	(9,010)	(15,758)
Total current assets	(9,010)	(15,758)
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	(468,408)	(455,739)
Advances to affiliates	(226,973)	(245,963)
Deferred income taxes	0	0
Other assets	0	0
Total assets	(704,391)	(717,460)
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	0	0
Accrued expenses	0	0
Deferred revenue	0	0
Current portion of long-term debt	0	0
Deferred compensation and retirement plan obligations	0	0
Other current liabilities	(9,010)	(15,758)
Total current liabilities	(9,010)	(15,758)
Long-term debt	0	0
Deferred compensation and retirement plan obligations	0	0
Advances from affiliates	(226,973)	(245,963)
Other liabilities	0	0
Total liabilities	(235,983)	(261,721)
Total shareholders’ (deficit) equity	(468,408)	(455,739)
Total liabilities and shareholders’ deficit	(704,391)	(717,460)
Consolidated [Member]
ASSETS
Cash and cash equivalents	200,544	214,879	174,878	167,795
Receivables, net	102,013	91,681
Other current assets	54,715	44,854
Total current assets	357,272	351,414
Property and equipment, at cost, net	80,057	77,309
Goodwill	65,813	65,813
Franchise rights and other identifiable intangibles, net	8,001	8,912
Notes receivable, net of allowances	48,781	40,441
Investments, employee benefit plans, at fair value	17,916	17,539
Investment in affiliates	0	0
Advances to affiliates	0	0
Deferred income taxes	18,921	20,546
Other assets	64,361	65,296
Total assets	661,122	647,270
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	54,631	57,124
Accrued expenses	39,414	63,530
Deferred revenue	73,908	66,382
Current portion of long-term debt	12,362	12,349
Deferred compensation and retirement plan obligations	177	628
Other current liabilities	1,396	85
Total current liabilities	181,888	200,098
Long-term debt	799,628	782,082
Deferred compensation and retirement plan obligations	24,259	23,987
Advances from affiliates	0	0
Other liabilities	68,840	69,904
Total liabilities	1,074,615	1,076,071
Total shareholders’ (deficit) equity	(413,493)	(428,801)
Total liabilities and shareholders’ deficit	$ 661,122	$ 647,270