Employee Benefit Plans - Amounts Recognized in Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets (noncurrent)	$ 7,725	$ 13,586
Other liabilities (current)
Other liabilities (noncurrent)	(2,564)	(920)
Net amount recognized	5,161	12,666
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets (noncurrent)		6,132
Other liabilities (current)	(3,037)	(2,120)
Other liabilities (noncurrent)	(62,916)	(26,939)
Net amount recognized	$ (65,953)	$ (22,927)