Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Revenues	$ 964,313	$ 1,013,470	$ 505,492
Cost of revenues	655,504	688,267	332,818
GROSS PROFIT	308,809	325,203	172,674
Selling, general and administrative expenses	248,256	284,641	146,478
Restructuring and Related Cost, Incurred Cost	22,872	18,909	9,889
OPERATING INCOME	37,681	21,653	16,307
Other (income) expense:
Interest Income (Expense), Net	48,609	52,975	10,841
Other (income) expense, net	(836)	(7,426)	1,826
TOTAL OTHER EXPENSE	47,773	45,549	12,667
INCOME BEFORE INCOME TAXES	(10,092)	(23,896)	3,640
Provision for income taxes	14,676	9,451	(7,211)
NET INCOME	$ (133,935)	$ (39,384)	$ 11,789
Income (Loss) from Continuing Operations, Per Basic Share	$ (1.24)	$ (1.68)	$ 0.65
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	(5.48)	(0.30)	0.06
Earnings per common share:
Basic	(6.73)	(1.99)	0.71
Income (Loss) from Continuing Operations, Per Diluted Share	(1.24)	(1.68)	0.64
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	(5.48)	(0.30)	0.06
Diluted	$ (6.73)	$ (1.99)	$ 0.70
Weighted average number of common shares outstanding:
Basic	19,903	19,834	16,674
Diluted	19,903	19,834	16,849
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ (24,768)	$ (33,347)	$ 10,851
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ (109,167)	$ (6,037)	$ 938