SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financial information of segments
SALES	$ 292,097	$ 263,588	$ 871,426	$ 798,708
INTERSEGMENT SALES	3,793	3,495	12,174	10,724
OPERATING PROFIT	35,203	28,704	100,526	79,258
Office
Financial information of segments
SALES	185,764	160,781	550,390	489,381
INTERSEGMENT SALES	466	343	1,535	1,244
OPERATING PROFIT	18,016	11,112	48,209	27,457
Studio
Financial information of segments
SALES	79,829	74,965	239,985	223,022
INTERSEGMENT SALES	1,228	1,525	4,286	4,611
OPERATING PROFIT	11,706	11,340	34,816	32,371
Coverings
Financial information of segments
SALES	26,504	27,842	81,051	86,305
INTERSEGMENT SALES	2,099	1,627	6,353	4,869
OPERATING PROFIT	$ 5,481	$ 6,252	$ 17,501	$ 19,430

The net result for the period of deducting operating expenses from operating revenues.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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