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	$ 39,630	$ 25,192
Adjustments to reconcile net income to cash used in operating activities
Depreciation and amortization	10,161	10,270
Unrealized foreign exchange gain (loss)	37	(618)
Amortization of debt issuance costs	330	1,095
Amortization of discount on bonds payable		143
Change in fair value of common stock warrants		1,879
Share-based compensation	3,847
Loss on disposals of property, plant and equipment	319	96
Deferred income taxes	13,499	12,305
Changes in operating assets and liabilities
Accounts receivable	(138,926)	(144,597)
Inventories	14,720	8,686
Accounts payable	6,427	9,706
Accrued taxes	(10,960)	1,831
Accrued expenses and other liabilities	(159,669)	121,117
Other assets	(4,580)	(1,934)
Other noncurrent liabilities	1,677	(146,604)
Interest due to related parties		7,423
Cash flows used in operating activities	(223,488)	(94,010)
Cash flows from investing activities
Additions to property, plant and equipment	(3,676)	(4,508)
Cash flows used in investing activities	(3,676)	(4,508)
Cash flows from financing activities
Increase in short-term borrowings, net	125,982	45,688
Proceeds from delayed draw term loan A facility	100,000
Repayment of term loan facilities	(5,938)
Proceeds from revolver loan facility		63,000
Payment of employee restricted stock tax witholdings	(903)
Cash flows provided by financing activities	219,141	108,688
Effect of foreign exchange rate changes on cash	1,621	1,233
Net increase (decrease) in cash	(6,402)	11,403
Cash and restricted cash, beginning of year	79,140	59,134
Cash and restricted cash, end of period	72,738	70,537
Supplemental information
Non-cash additions to property, plant and equipment	121	$ 149
Dividends declared to stockholders but not paid	9,152
Dividends declared to noncontrolling interests but not paid	$ 2,400