Related Party Transaction (Textual) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Sep. 17, 2013
Related Party Transaction [Line Items]
Percentage ownership of Par common stock		10.00%
Travel and out of pocket expenses	$ 50
Investor
Related Party Transaction [Line Items]
Initial term of service agreements	1 year
Renewal term for service agreements	1 year
Termination period between extension date	60 days