Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 11,010	$ 10,146
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,446	8,595
Unrealized (gain) loss on foreign exchange, net	856	(5,613)
Share-based compensation	2,611	2,826
Other non-cash items	(689)	808
Changes in operating assets and liabilities:
Accounts receivable, net of allowances	(66,917)	(69,763)
Inventories	(28,591)	(14,383)
Prepaid expenses and other assets	9,618	(6,814)
Accounts payable, accrued expenses and other liabilities	13,766	17,260
Cash used in operating activities	(49,890)	(56,938)
Cash flows from investing activities:
Cash paid for purchases of property and equipment	(3,243)	(3,216)
Proceeds from disposal of property and equipment	12	0
Cash paid for intangible assets	(2,167)	(2,714)
Change in restricted cash	(850)	(1,760)
Cash used in investing activities	(6,248)	(7,690)
Cash flows from financing activities:
Proceeds from bank borrowings	5,500	20,000
Repayments of bank borrowings and capital lease obligations	(3,376)	(12,842)
Dividends—Series A preferred stock	(3,000)	(3,000)
Other	(240)	(158)
Cash provided by (used in) financing activities	(1,116)	4,000
Effect of exchange rate changes on cash	(1,427)	6,367
Net change in cash and cash equivalents	(58,681)	(54,261)
Cash and cash equivalents—beginning of period	147,565	143,341
Cash and cash equivalents—end of period	$ 88,884	$ 89,080