Annual report pursuant to Section 13 and 15(d)

Acquisitions - Additional Information (Detail)

v3.3.1.900
Acquisitions - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Sep. 30, 2014
Oct. 31, 2013
Business Acquisition [Line Items]          
Business combination, Goodwill $ 15,448 $ 15,448 $ 13,999    
Media amortization expense $ 2,071 $ 1,021 $ 1,341    
Minimum          
Business Acquisition [Line Items]          
Amortization period 24 months        
Maximum          
Business Acquisition [Line Items]          
Amortization period 60 months        
Yoga Studio [Member ]          
Business Acquisition [Line Items]          
Business combination, Goodwill       $ 1,500  
My Yoga Online [Member]          
Business Acquisition [Line Items]          
Business combination, Goodwill         $ 10,600