Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Defined benefit plans:
Multiemployer pension plans	$ 409	$ 521
Defined contribution pension plans	3,169	3,390
Pension Plan | U.S. Plans
Defined benefit plans:
Service cost	0	10
Interest cost	1,845	2,651
Expected return on plan assets	(2,842)	(2,593)
Recognized prior service costs	0	0
Recognized loss	1,425	1,405
Defined benefit pension plans net periodic pension cost (benefit)	428	1,473
Defined benefit pension plan	2,027	1,479
Anticipated contributions to defined benefit pension plans during the remainder of the fiscal year	6,200
Pension Plan | International Plans
Defined benefit plans:
Service cost	429	356
Interest cost	4,395	5,664
Expected return on plan assets	(10,190)	(9,517)
Recognized prior service costs	107	66
Recognized loss	3,655	3,653
Defined benefit pension plans net periodic pension cost (benefit)	(1,604)	222
Defined benefit pension plan	10,060	$ 9,270
Anticipated contributions to defined benefit pension plans during the remainder of the fiscal year	$ 11,000