VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

VALUATION AND QUALIFYING ACCOUNTS

Column A	Column B	Column C		Column D		Column E
Description	Balance at beginning of period	Charge to expense		Other (A)		Balance at end of the period
Allowance for doubtful accounts
Year ended December 31:
2017	$6,952	$1,388		($421	)	$7,919
2016	8,530	23		(1,601	)	6,952
2015	8,713	744		(927	)	8,530
Allowance for sales returns
Year ended December 31:
2017	$13,714	$8,909		($11,253	)	$11,370
2016	14,024	10,851		(11,161	)	13,714
2015	17,265	10,640		(13,881	)	14,024
Valuation allowance deferred tax assets
Year ended December 31:
2017	$22,821	($3,552	)	($3,212	)	$16,057
2016	24,439	(88	)	(1,530	)	22,821
2015	21,860	75		2,504		24,439

(A) Amounts sold, written off, or recovered, and the effect of changes in currency translation rates, are included in Column D.