Corporate Restructuring and Other Organizational Changes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Employee termination costs paid during the period	$ 200	$ 1,100
Unpaid severance liability	600
Employee termination costs		$ 1,300
Restructuring charges	782		$ 1,045
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance liability to be paid over the next 12 months	600
Restructuring charges	560		777
Facility Closures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	222		$ 268
Facility Closures [Member] | Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 222