Commitments and Contingencies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017 USD ($)	Apr. 23, 2010 subsidiary
David Opalinski And James Mccabe
Loss Contingencies [Line Items]
Allegations loss	$ 0
Leonor Rodriguez
Loss Contingencies [Line Items]
Allegations loss	0
Staffing Managers Case
Loss Contingencies [Line Items]
Number of subsidiaries | subsidiary		1
Jessica Gentry
Loss Contingencies [Line Items]
Loss contingency	$ 0