Pension and Other Postretirement Benefits - Net Periodic Pension and Other Postretirement Benefit Costs (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 01, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain (loss)	$ 21
Defined Benefit Pension Plan [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 191	$ 474	$ 385	$ 809
Interest cost		2,309	2,071	4,529	4,111
Expected return on plan assets		(3,116)	(3,319)	(6,289)	(6,603)
Amortization of prior service (credit) cost		(3)	12	6	25
Amortization of actuarial (gain) loss		268	380	576	855
Curtailment gain (loss)		0	21	0	21
Net benefit income		(351)	(361)	(793)	(782)
Defined Benefit Pension Plan [Member] | Foreign Defined Benefits Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		97	164	199	275
Interest cost		352	354	709	718
Expected return on plan assets		(584)	(658)	(1,175)	(1,330)
Amortization of prior service (credit) cost		(72)	(85)	(144)	(173)
Amortization of actuarial (gain) loss		163	190	329	384
Net benefit income		(44)	(35)	(82)	(126)
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		68	126	156	228
Interest cost		106	122	211	247
Amortization of prior service (credit) cost		(532)	(401)	(1,021)	(803)
Amortization of actuarial (gain) loss		(106)	(53)	(189)	(115)
Curtailment gain (loss)		0	0	(15)	0
Net benefit income		$ (464)	$ (206)	$ (858)	$ (443)