CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Cash flows from operating activities
Net income	$ 73,668	$ 52,670
Adjustments to reconcile net income to cash provided by (used in) operating activities
Depreciation and amortization	20,453	20,552
Unrealized foreign exchange gain	(1,156)	(733)
Amortization of debt issuance costs	660	2,512
Amortization of discount on bonds payable		282
Change in fair value of common stock warrants		6,112
Share-based compensation	7,901	964
Loss on disposals of property, plant and equipment	454	66
Deferred income taxes	26,469	29,088
Changes in operating assets and liabilities
Accounts receivable	(80,999)	(95,997)
Inventories	34,216	51,488
Accounts payable	(11,079)	(5,598)
Accrued taxes	(18,621)	(1,816)
Accrued expenses and other liabilities	(150,091)	130,871
Other assets	3,119	(3,993)
Other noncurrent liabilities	5,141	(145,828)
Interest due to related parties		14,847
Cash flows provided by (used in) operating activities	(89,865)	55,487
Cash flows from investing activities
Additions to property, plant and equipment	(8,823)	(8,116)
Cash flows used in investing activities	(8,823)	(8,116)
Cash flows from financing activities
Increase in short-term borrowings, net	31,615	5,867
Proceeds from delayed draw term loan A facility	100,000
Repayment of term loan facilities	(11,875)
Repayment of senior term loan facility		(30,000)
Debt issuance costs		(663)
Dividends paid on common stock	(17,868)
Dividends paid to noncontrolling interests	(2,400)	(3,000)
Payment of employee restricted stock tax withholdings	(903)
Cash flows provided by (used in) financing activities	98,569	(27,796)
Effect of foreign exchange rate changes on cash	1,876	1,990
Net increase in cash	1,757	21,565
Cash and restricted cash, beginning of year	79,140	59,134
Cash and restricted cash, end of period	80,897	80,699
Supplemental information
Non-cash additions to property, plant and equipment	1,265	$ 690
Dividend equivalents declared not paid	$ 433