Future Minimum Rental Payments for Operating Leases (Detail) $ in Thousands	Dec. 31, 2015 USD ($)	[1]
Operating Leases
2016	$ 13,087
2017	13,101
2018	13,057
2019	11,281
2020	10,294
2021 & Thereafter	26,604
Total future minimum rental payments for operating leases	$ 87,424

[1] Operating leases include future minimum rent payments, net of estimated sublease income, for facilities that the Company has vacated pursuant to its restructuring activities, as discussed in Note 12.