Restructuring Program - Schedule of Restructuring Program Activity (Detail) - Jun. 30, 2015 - USD ($) $ in Thousands	Total	Total
Restructuring Cost and Reserve [Line Items]
Restructuring and other related costs	$ 122	$ 267
Severance and Other Employment Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other related costs, Liability, Beginning balance		7,691
Restructuring and other related costs		267
Restructuring and other related costs, Payments made		$ (7,958)