Goodwill and Other Intangibles - Change in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill		$ 52,481
Changes due to foreign currency exchange rate fluctuations	$ 28	(150)
Less: accumulated impairment of goodwill		(51,306)
Goodwill [Roll Forward]
Goodwill, beginning balance	1,025
Changes due to foreign currency exchange rate fluctuations	28	(150)
Goodwill, ending balance	1,053	1,025
NYSC [Member]
Goodwill [Line Items]
Goodwill		31,549
Changes due to foreign currency exchange rate fluctuations	0	0
Less: accumulated impairment of goodwill		(31,549)
Goodwill [Roll Forward]
Goodwill, beginning balance	0
Changes due to foreign currency exchange rate fluctuations	0	0
Goodwill, ending balance	0	0
BSC [Member]
Goodwill [Line Items]
Goodwill		15,775
Changes due to foreign currency exchange rate fluctuations	0	0
Less: accumulated impairment of goodwill		(15,775)
Goodwill [Roll Forward]
Goodwill, beginning balance	0
Changes due to foreign currency exchange rate fluctuations	0	0
Goodwill, ending balance	0	0
SSC [Member]
Goodwill [Line Items]
Goodwill		1,175
Changes due to foreign currency exchange rate fluctuations	28	(150)
Less: accumulated impairment of goodwill		0
Goodwill [Roll Forward]
Goodwill, beginning balance	1,025
Changes due to foreign currency exchange rate fluctuations	28	(150)
Goodwill, ending balance	1,053	1,025
Outlier Clubs [Member]
Goodwill [Line Items]
Goodwill		3,982
Changes due to foreign currency exchange rate fluctuations	0	0
Less: accumulated impairment of goodwill		(3,982)
Goodwill [Roll Forward]
Goodwill, beginning balance	0
Changes due to foreign currency exchange rate fluctuations	0	0
Goodwill, ending balance	$ 0	$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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