CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		18 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 20,076	$ 5,561	$ 21,694	$ 4,487
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			10,086	10,487
(Recovery of) provision for doubtful accounts			(44)	217
Interest on sale-leaseback financing obligation			681	0
Restructuring and other transition expenses, net of payments			1,082	3,617
Deferred income taxes			13,640	72
Net gain from sale of Torrance Facility	(37,449)	0	(37,449)	0
Net gains from sales of Spice Assets and other assets			(1,931)	(5,265)
ESOP and share-based compensation expense			2,094	2,651
Net losses on derivative instruments and investments			2,583	9,426
Change in operating assets and liabilities:
Restricted cash			0	1,002
Purchases of trading securities held for investment			(2,959)	(4,050)
Proceeds from sales of trading securities held for investment			1,268	3,497
Accounts and notes receivable			(4,545)	(5,646)
Inventories			(10,071)	(2,763)
Income tax receivable			(27)	(75)
Derivative assets (liabilities), net			4,329	(8,822)
Prepaid expenses and other assets			33	518
Accounts payable			18,356	(1,048)
Accrued payroll expenses and other current liabilities			(5,210)	(4,076)
Accrued postretirement benefits			(447)	(197)
Other long-term liabilities			(1,849)	(72)
Net cash provided by operating activities			11,314	3,960
Cash flows from investing activities:
Acquisition of business, net of cash acquired			11,183	0
Purchases of property, plant and equipment			(26,864)	(11,383)
Purchases of construction-in-progress assets for New Facility			(21,783)	(5,738)
Proceeds from sales of property, plant and equipment			3,332	5,826
Net cash used in investing activities			(56,498)	(11,295)
Cash flows from financing activities:
Proceeds from revolving credit facility			34,323	193
Repayments on revolving credit facility			(15,900)	(87)
Proceeds from sale-leaseback financing obligation			42,455	0
Proceeds from New Facility lease financing			7,662	5,738
Repayments of New Facility lease financing			(35,772)	0
Payments of capital lease obligations			(641)	(1,723)
Payment of financing costs			0	(8)
Proceeds from stock option exercises			405	1,267
Tax withholding payment - net share settlement of equity awards			0	159
Net cash provided by financing activities			32,532	5,221
Net decrease in cash and cash equivalents			(12,652)	(2,114)
Cash and cash equivalents at beginning of period			21,095	15,160	$ 15,160
Cash and cash equivalents at end of period	8,443	13,046	8,443	13,046	8,443
Supplemental disclosure of non-cash investing activities:
Equipment acquired under capital leases			0	9
Net change in derivative assets and liabilities included in other comprehensive income, net of tax	$ (1,203)	$ 4,497	(1,203)	4,497	$ (1,203)
Construction-in-progress assets under New Facility lease			0	2,321
New Facility lease obligation			0	2,321
Non-cash additions to property, plant and equipment			11,253	644
Non-cash portion of earnout receivable recognized-Spice Assets sale			492	0
Non-cash portion of earnout-China Mist, Value of Consideration Given			$ 500	$ 0