Summary of Significant Accounting Policies - Impairment and Insurance (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Percent of revenue	2.00%
Period of financial forecast	3 years
Letter of credit related to insurance claims	$ 415	$ 615

A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit.)

No definition available.

Name:	club_Letterofcreditrelatedtoinsuranceclaims
Namespace Prefix:	club_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant