Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income (loss)	$ (13,023)	$ 48,168
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	28,019	31,344
Unrealized (gain) loss on foreign exchange, net	(99)	(9,019)
Asset impairment charges	7,535	5,830
Provision for doubtful accounts, net	25,258	9,129
Share-based compensation	8,886	10,473
Inventory write-down charges		896
Non-cash restructuring charges		4,064
Other non-cash items	416	(170)
Changes in operating assets and liabilities:
Accounts receivable, net of allowances	(48,092)	(67,358)
Inventories	(27,713)	(49,544)
Prepaid expenses and other assets	(321)	5,073
Accounts payable	38,864	10,152
Accrued expenses and other liabilities	4,855	8,981
Accrued restructuring	(2,019)	3,745
Income taxes	(15,626)	(17,059)
Cash provided by (used in) operating activities	6,940	(5,295)
Cash flows from investing activities:
Cash paid for purchases of property and equipment	(4,235)	(13,891)
Proceeds from disposal of property and equipment		174
Cash paid for intangible assets	(7,572)	(29,457)
Change in restricted cash	11	(1,655)
Cash used in investing activities	(11,796)	(44,829)
Cash flows from financing activities:
Proceeds from preferred stock offering, net of issuance costs of $0.0 million and $15.8 million, respectively		182,220
Dividends - Series A preferred stock	(8,900)	(5,166)
Repayment of bank borrowings and capital lease obligations	(3,957)	(3,872)
Deferred debt issuance costs	(94)	(75)
Issuances of common stock	1,255	1,300
Purchase of treasury stock, net of issuances	(75,928)	(90,093)
Repurchase of common stock for tax withholding	(261)	(787)
Cash provided by (used in) financing activities	(87,885)	83,527
Effect of exchange rate changes on cash	(6,305)	(176)
Net increase (decrease) in cash and cash equivalents	(99,046)	33,227
Cash and cash equivalents - beginning of period	267,512	317,144
Cash and cash equivalents - end of period	168,466	350,371
Supplemental disclosure of cash flow information-cash paid during the period for:
Interest, net of capitalized interest	688	358
Income taxes	17,668	30,114
Supplemental disclosure of non-cash investing and financing activities:
Accrued purchases of property and equipment	761	663
Accrued purchases of intangibles		6,050
Accrued dividends	3,000	3,067
Accretion of dividend equivalents	$ 2,209	$ 2,030