Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net (loss) income including non-controlling interests	$ (1,557)	$ 601	$ (3,756)	$ 1,730
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments, net of tax	(103)	(128)	(92)	491
Interest rate swap, net of tax of $0, for each of the three and six months ended June 30, 2019 and 2018	0		0
Interest rate swap, net of tax of $0, for each of the three and six months ended June 30, 2019 and 2018		(66)		110
Total other comprehensive (loss) income, net of tax	(103)	(194)	(92)	601
Total comprehensive (loss) income including non-controlling interests	(1,660)	407	(3,848)	2,331
Less: comprehensive loss attributable to non-controlling interests	(110)	0	(260)	0
Total comprehensive (loss) income attributable to Town Sports International Holdings, Inc. and Subsidiaries	$ (1,550)	$ 407	$ (3,588)	$ 2,331