CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net income	$ 12,728	$ 74,941
Adjustments to reconcile net income to cash (used in) provided by operating activities
Depreciation and amortization	20,571	19,596
Unrealized foreign exchange losses	2,184	730
Amortization of debt issuance costs	425	738
Share-based compensation	6,403	5,386
(Gain) loss on disposals of property, plant and equipment	(53)	2
Deferred income taxes	(4,244)	17,355
Changes in operating assets and liabilities
Accounts receivable	(56,640)	(120,056)
Inventories	30,066	37,420
Accounts payable	(23,187)	9,675
Accrued taxes	(1,626)	(15,230)
Other assets and liabilities	12,534	9,454
Cash flows (used in) provided by operating activities	(839)	40,011
Cash flows from investing activities
Additions to property, plant and equipment	(10,355)	(10,595)
Cash flows used in investing activities	(10,355)	(10,595)
Cash flows from financing activities
Proceeds from short-term borrowings, net	127,616	41,939
Repayments of term loan facility	(8,750)	(14,063)
Repayments of delayed draw term loan A facility	0	(3,750)
Purchases of common stock	(6,976)	(6,178)
Debt issuance costs	(14)	0
Dividends paid on common stock	(23,034)	(22,433)
Dividends paid to noncontrolling interests	0	(1,853)
Payment of employee restricted stock tax withholdings	(496)	(10,924)
Cash flows provided by (used in) financing activities	88,346	(17,262)
Effect of foreign exchange rate changes on cash and restricted cash	(307)	(202)
Net increase in cash and restricted cash	76,845	11,952
Cash and restricted cash, beginning of year	34,184	31,014
Cash and restricted cash, end of period	111,029	42,966
Supplemental information
Non-cash additions to property, plant and equipment	1,014	830
Non-cash additions to right-of-use assets obtained in exchange for operating lease obligations	3,237	3,005
Non-cash additions to right-of-use assets obtained in exchange for finance lease obligations	427	0
Dividend equivalents rights ("DERs") declared not paid	477	387
Share repurchase liability (Note 9)	$ 6,976	$ 6,178