REVENUE - Revenue by Geographic Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
REVENUE
Net revenue	$ 701,278	$ 665,775	$ 2,188,399	$ 2,079,733
Beauty + Home
REVENUE
Net revenue	328,182	341,760	1,037,921	1,088,469
Pharma
REVENUE
Net revenue	269,251	227,515	823,891	698,851
Food + Beverage
REVENUE
Net revenue	103,845	96,500	326,587	292,413
Europe
REVENUE
Net revenue	391,512	381,472	1,248,411	1,232,943
Europe | Beauty + Home
REVENUE
Net revenue	188,542	190,267	607,316	622,184
Europe | Pharma
REVENUE
Net revenue	174,252	161,733	549,080	520,574
Europe | Food + Beverage
REVENUE
Net revenue	28,718	29,472	92,015	90,185
North America
REVENUE
Net revenue	211,497	181,349	640,543	528,210
North America | Beauty + Home
REVENUE
Net revenue	75,931	83,353	236,883	252,709
North America | Pharma
REVENUE
Net revenue	78,259	50,126	226,073	132,496
North America | Food + Beverage
REVENUE
Net revenue	57,307	47,870	177,587	143,005
Latin America
REVENUE
Net revenue	54,685	58,294	170,605	182,810
Latin America | Beauty + Home
REVENUE
Net revenue	40,261	44,653	124,352	140,238
Latin America | Pharma
REVENUE
Net revenue	6,366	6,165	21,100	19,229
Latin America | Food + Beverage
REVENUE
Net revenue	8,058	7,476	25,153	23,343
Asia
REVENUE
Net revenue	43,584	44,660	128,840	135,770
Asia | Beauty + Home
REVENUE
Net revenue	23,448	23,487	69,370	73,338
Asia | Pharma
REVENUE
Net revenue	10,374	9,491	27,638	26,552
Asia | Food + Beverage
REVENUE
Net revenue	$ 9,762	$ 11,682	$ 31,832	$ 35,880