Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	May. 31, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill				$ 52,481
Less: accumulated impairment of goodwill				(19,748)
Goodwill [Roll Forward]
Goodwill			$ 32,593
Changes due to foreign currency exchange rate fluctuations			(10)	(140)
Less: impairment of goodwill	$ (31,558)	$ (31,558)	(31,558)	(137)	$ 0
Goodwill			1,025	32,593
New York Sports Clubs [Member]
Goodwill [Line Items]
Goodwill				31,549
Less: accumulated impairment of goodwill				0
Goodwill [Roll Forward]
Goodwill			31,549
Changes due to foreign currency exchange rate fluctuations			0	0
Less: impairment of goodwill			(31,549)
Goodwill			0	31,549
Boston Sports Clubs [Member]
Goodwill [Line Items]
Goodwill				15,775
Less: accumulated impairment of goodwill				(15,766)
Goodwill [Roll Forward]
Goodwill			9
Changes due to foreign currency exchange rate fluctuations			0	0
Less: impairment of goodwill			(9)
Goodwill			0	9
Switzerland Clubs [Member]
Goodwill [Line Items]
Goodwill				1,175
Less: accumulated impairment of goodwill				0
Goodwill [Roll Forward]
Goodwill			1,035
Changes due to foreign currency exchange rate fluctuations			(10)	(140)
Less: impairment of goodwill			0
Goodwill			1,025	1,035
Outlier Clubs [Member]
Goodwill [Line Items]
Goodwill				3,982
Less: accumulated impairment of goodwill				(3,982)
Goodwill [Roll Forward]
Goodwill			0
Changes due to foreign currency exchange rate fluctuations			0	0
Less: impairment of goodwill			0
Goodwill			$ 0	$ 0