Pension Plans - Net Periodic Benefit Cost (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Periodic Benefit Cost Assumptions [Line Items]
Net periodic benefit cost (gain)	$ 2,854	$ 642
Domestic Plans [Member]
Net Periodic Benefit Cost Assumptions [Line Items]
Interest cost	6,778	167
Expected return on plan assets	(6,875)	(3,000)
Recognized net actuarial loss and other	3,290	3,152
Net periodic benefit cost (gain)	3,193	319
TCN Plan [Member]
Net Periodic Benefit Cost Assumptions [Line Items]
Interest cost	475	467
Expected return on plan assets	(740)	(651)
Recognized net actuarial loss and other	(74)	507
Net periodic benefit cost (gain)	$ (339)	$ 323