Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 93,093	$ 89,755
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Non-cash operating items (Note 2)	(109,911)	(97,384)
Changes in operating assets and liabilities:
Other current assets	6,248	98
Accrued employment costs and other current liabilities	322	93
Income taxes receivable and payable	(938)	4,387
Pension and other postretirement liabilities	(2,138)	(633)
Other liabilities	2,417	3,998
Net cash (used in) provided by operating activities - continuing operations	(10,907)	314
Net cash (used in) provided by operating activities - discontinued operations	0	1,812
Net cash (used in) provided by operating activities	(10,907)	2,126
Investing activities:
Capital expenditures	0	(6)
Net cash (used in) provided by investing activities - continuing operations	0	(6)
Net cash provided by (used in) investing activities - discontinued operations	0	0
Net cash (used in) provided by investing activities	0	(6)
Financing activities:
Dividend paid	(216,529)	0
Net cash (used in) provided by financing activities - continuing operations	(216,529)	0
Net cash provided by financing activities - discontinued operations	0	0
Net cash (used in) provided by financing activities	(216,529)	0
Cash, cash equivalents and restricted cash - period (decrease) increase	(227,436)	2,120
Cash, cash equivalents and restricted cash - beginning of year	259,371	257,251
Cash, cash equivalents and restricted cash - end of year	$ 31,935	$ 259,371