GOODWILL AND INTANGIBLE ASSETS, NET (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-lived intangible assets:
Accumulated Amortization	$ (30,435,000)	$ (21,604,000)
Gross Amount, Total	384,381,000	260,185,000
Total Intangible assets
Intangible Assets, Net (Excluding Goodwill)	353,946,000	238,581,000
Goodwill, impairment	0	0	$ 0
Amortization expense	8,900,000	3,300,000	3,300,000
Estimated Amortization
2019	8,605,000
2020	8,466,000
2021	7,960,000
2022	7,635,000
2023	7,564,000
Changes in the carrying amount of goodwill
Balance as of Beginning of Period	142,113,000	141,391,000
Foreign currency translation adjustment	(15,948,000)	519,000
Purchase accounting adjustment		203,000
Goodwill acquired	194,594,000
Balance as of End of Period	320,759,000	142,113,000	141,391,000
Office Segment
Changes in the carrying amount of goodwill
Balance as of Beginning of Period	36,220,000	35,701,000
Foreign currency translation adjustment	(597,000)	519,000
Purchase accounting adjustment		0
Goodwill acquired	0
Balance as of End of Period	35,623,000	36,220,000	35,701,000
Lifestyle Segment
Changes in the carrying amount of goodwill
Balance as of Beginning of Period	105,893,000	105,690,000
Foreign currency translation adjustment	(15,351,000)	0
Purchase accounting adjustment		203,000
Goodwill acquired	194,594,000
Balance as of End of Period	285,136,000	105,893,000	$ 105,690,000
Customer relationships
Finite-lived intangible assets:
Gross Amount	78,382,000	22,497,000
Accumulated Amortization	(18,418,000)	(11,575,000)
Net Amount	59,964,000	10,922,000
Copyrights & designs
Finite-lived intangible assets:
Gross Amount	6,960,000	0
Accumulated Amortization	(999,000)	0
Net Amount	5,961,000	0
Various
Finite-lived intangible assets:
Gross Amount	13,510,000	12,088,000
Accumulated Amortization	(11,018,000)	(10,029,000)
Net Amount	2,492,000	2,059,000
Tradenames
Indefinite-lived intangible assets:
Indefinite-lived intangible assets:	$ 285,529,000	$ 225,600,000