Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities:
Net income (loss)	$ 93,719	$ 59,346
(Income) loss from discontinued operations, net of tax provision	5	306
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Non-cash operating items (Note 2)	(155,628)	(67,057)
Changes in operating assets and liabilities:
Other current assets and other assets	(565)	(107)
Accrued expenses and other current liabilities	759	(578)
Income taxes receivable and payable	43,473	88
Pension and other postretirement liabilities	(1,576)	(1,384)
Long-term liabilities	2,035	1,665
Net cash provided by (used in) operating activities - continuing operations	(17,778)	(7,721)
Net cash provided by (used in) operating activities - discontinued operations	(2,809)	(8,428)
Net cash provided by (used in) operating activities	(20,587)	(16,149)
Investing activities:
Capital expenditures	(39)	(3)
Distribution received from affiliate	242,735
Net cash provided by (used in) investing activities - continuing operations	242,696	(3)
Net cash provided by (used in) investing activities	242,696	(3)
Cash, cash equivalents and restricted cash - period increase (decrease)	222,109	(16,152)
Cash, cash equivalents and restricted cash - beginning of period	37,458	58,853
Cash, cash equivalents and restricted cash - end of period	$ 259,567	$ 42,701