Consolidated Statements of Cash Flows Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Information [Abstract]
Interest	$ 45,241	$ 46,186	$ 33,952
Income taxes	123,974	196,193	373,900
Supplemental schedule of non-cash investing and financing activities:
Additions to property, plant and equipment	6,387	(4,672)	30,643
Fair value of net assets acquired in acquisition	107,290	831,760	369,956
Liabilities assumed in acquisition	(31,053)	(257,515)	(119,157)
Noncash investing and financing activities, total	$ 76,237	$ 574,245	$ 250,799