Condensed Consolidating Financial Statements - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 202,463	$ 193,441	$ 214,879	$ 167,795
Receivables, net	107,336	89,352
Total current assets	344,873	310,953
Property and equipment, at cost, net	84,061	88,158
Goodwill	78,905	79,327	65,813
Franchise rights and other identifiable intangibles, net	15,738	11,948
Notes receivable, net of allowances	110,608	82,572
Investments, employee benefit plans, at fair value	16,975	17,674
Deferred income taxes	52,812	42,434
Other assets	53,657	16,907
Total assets	852,468	717,010	637,917
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	48,071	64,431
Accrued expenses and other current liabilities	80,388	70,648
Deferred revenue	133,218	71,587
Current portion of long-term debt	1,195	1,191
Total current liabilities	263,668	208,016
Long-term debt	839,409	812,945
Deferred compensation & retirement plan obligations	21,595	22,859
Other liabilities	38,853	68,583
Total liabilities	1,163,817	1,112,909
Total shareholders’ (deficit) equity	(311,349)	(395,899)	(428,801)	(452,871)
Total liabilities and shareholders’ deficit	852,468	717,010
Parent
ASSETS
Cash and cash equivalents	14,696	13,529	25,290	9,785
Receivables, net	96,128	79,381
Other current assets	9,120	19,029
Total current assets	119,944	111,939
Property and equipment, at cost, net	44,236	37,857
Goodwill	65,813	60,620
Franchise rights and other identifiable intangibles, net	5,279	2,965
Notes receivable, net of allowances	16,285	18,866
Investments, employee benefit plans, at fair value	0	0
Investments in affiliates	526,166	473,448
Advances to affiliates	14,929	17,144
Deferred income taxes	40,459	10,664
Other assets	18,259	319
Total assets	851,370	733,822
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	14,296	12,359
Accrued expenses and other current liabilities	31,352	29,099
Deferred revenue	132,217	8,749
Current portion of long-term debt		0
Other current liabilities	8,480
Total current liabilities	186,345	50,207
Long-term debt	826,551	799,212
Deferred compensation & retirement plan obligations	0	0
Advances from affiliates	135,879	235,629
Other liabilities	13,944	44,673
Total liabilities	1,162,719	1,129,721
Total shareholders’ (deficit) equity	(311,349)	(395,899)
Total liabilities and shareholders’ deficit	851,370	733,822
Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	159	19	25	19
Receivables, net	1,556	1,132
Other current assets	29,281	14,176
Total current assets	30,996	15,327
Property and equipment, at cost, net	21,718	33,575
Goodwill	0	5,193
Franchise rights and other identifiable intangibles, net	3,494	1,013
Notes receivable, net of allowances	42,398	38,957
Investments, employee benefit plans, at fair value	16,975	17,674
Investments in affiliates	50,798	37,182
Advances to affiliates	123,074	212,773
Deferred income taxes	14,234	33,936
Other assets	76,933	45,383
Total assets	380,620	441,013
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	29,705	48,238
Accrued expenses and other current liabilities	45,179	45,601
Deferred revenue	0	61,890
Current portion of long-term debt		430
Other current liabilities	7
Total current liabilities	74,891	156,159
Long-term debt	3,712	3,712
Deferred compensation & retirement plan obligations	21,584	22,849
Advances from affiliates	1,188	257
Other liabilities	15,631	15,755
Total liabilities	117,006	198,732
Total shareholders’ (deficit) equity	263,614	242,281
Total liabilities and shareholders’ deficit	380,620	441,013
Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	187,608	179,893	189,564	157,991
Receivables, net	9,802	8,992
Other current assets	4,470	5,331
Total current assets	201,880	194,216
Property and equipment, at cost, net	18,107	16,726
Goodwill	13,092	13,514
Franchise rights and other identifiable intangibles, net	6,965	7,970
Notes receivable, net of allowances	51,925	24,749
Investments, employee benefit plans, at fair value	0	0
Investments in affiliates	0	0
Advances to affiliates	17	7,789
Deferred income taxes	0	0
Other assets	53,304	38,348
Total assets	345,290	303,312
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	4,220	3,987
Accrued expenses and other current liabilities	3,857	6,378
Deferred revenue	1,107	1,053
Current portion of long-term debt		761
Other current liabilities	1,195
Total current liabilities	10,379	12,179
Long-term debt	9,146	10,021
Deferred compensation & retirement plan obligations	11	10
Advances from affiliates	953	1,820
Other liabilities	11,451	10,933
Total liabilities	31,940	34,963
Total shareholders’ (deficit) equity	313,350	268,349
Total liabilities and shareholders’ deficit	345,290	303,312
Consolidated
ASSETS
Cash and cash equivalents	202,463	193,441	214,879	167,795
Receivables, net	107,336	89,352
Other current assets	35,074	28,160
Total current assets	344,873	310,953
Property and equipment, at cost, net	84,061	88,158
Goodwill	78,905	79,327
Franchise rights and other identifiable intangibles, net	15,738	11,948
Notes receivable, net of allowances	110,608	82,572
Investments, employee benefit plans, at fair value	16,975	17,674
Investments in affiliates	0	0
Advances to affiliates	0	0
Deferred income taxes	52,812	42,434
Other assets	148,496	83,944
Total assets	852,468	717,010
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	48,071	64,431
Accrued expenses and other current liabilities	80,388	70,807
Deferred revenue	133,218	71,587
Current portion of long-term debt		1,191
Other current liabilities	1,991
Total current liabilities	263,668	208,016
Long-term debt	839,409	812,945
Deferred compensation & retirement plan obligations	21,595	22,859
Advances from affiliates	0	0
Other liabilities	39,145	69,089
Total liabilities	1,163,817	1,112,909
Total shareholders’ (deficit) equity	(311,349)	(395,899)
Total liabilities and shareholders’ deficit	852,468	717,010
Eliminations
ASSETS
Cash and cash equivalents	0	0	$ 0	$ 0
Receivables, net	(150)	(153)
Other current assets	(7,797)	(10,376)
Total current assets	(7,947)	(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
Investments in affiliates	(576,964)	(510,630)
Advances to affiliates	(138,020)	(237,706)
Deferred income taxes	(1,881)	(2,166)
Other assets	0	(106)
Total assets	(724,812)	(761,137)
LIABILITIES AND SHAREHOLDERS’ DEFICIT
Accounts payable	(150)	(153)
Accrued expenses and other current liabilities	0	(10,271)
Deferred revenue	(106)	(105)
Current portion of long-term debt		0
Other current liabilities	(7,691)
Total current liabilities	(7,947)	(10,529)
Long-term debt	0	0
Deferred compensation & retirement plan obligations	0	0
Advances from affiliates	(138,020)	(237,706)
Other liabilities	(1,881)	(2,272)
Total liabilities	(147,848)	(250,507)
Total shareholders’ (deficit) equity	(576,964)	(510,630)
Total liabilities and shareholders’ deficit	$ (724,812)	$ (761,137)