Other Comprehensive Loss as Component of Net Periodic Benefit Cost (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Domestic Plans
Pension cost in accumulated other comprehensive loss:
Net actuarial loss	$ (92,407)	$ (85,984)
TCN Plan
Pension cost in accumulated other comprehensive loss:
Net actuarial loss	6,113	(6,738)
Recognized in 2013 | Domestic Plans
Pension cost in accumulated other comprehensive loss:
Net actuarial loss	11,728
Recognized in 2013 | TCN Plan
Pension cost in accumulated other comprehensive loss:
Net actuarial loss	2,029
To Be Recognized in 2014 | Domestic Plans
Pension cost in accumulated other comprehensive loss:
Net actuarial loss	13,194
To Be Recognized in 2014 | TCN Plan
Pension cost in accumulated other comprehensive loss:
Net actuarial loss	$ (295)