Components of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Accrued Liabilities [Line Items]
Payroll and related items	$ 48,445	$ 55,618
Management incentive compensation	5,299	15,974
Income taxes payable	22,896	10,284
Deferred income taxes	386
Insurance	9,445	8,974
Warranty	4,816	4,875
Deferred revenue	11,765	9,682
Restructuring	4,205	10,887
Liability for uncertain tax positions	2,685	2,679
Accrued interest	9,428	1,713
Contingent consideration for acquisition	8,644	3,528
Other	26,456	25,962
Total accrued expenses	$ 154,470	$ 150,176