Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Current Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6509736

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.7)
-URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319

Income Taxes (Details 1) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
Income Taxes (Details 1) - USD ($) $ in Thousands	Jan. 01, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Computed expected income tax expense (benefit)	21.00%									35.00%	35.00%	35.00%
Current
Federal										$ 348	$ (6,360)	$ 2,920
State and local										245	(107)	744
Foreign										472	807	545
Total current										1,065	(5,660)	4,209
Deferred
Federal										(9,886)	18,619	(38,048)
State and local										(747)	7,655	(3,523)
Foreign										(326)	16	2
Total deferred										(10,959)	26,290	(41,569)
Income tax expense (benefit)										(9,894)	20,630	(37,360)
Results of operation, income before income taxes
United States										(49,731)	(66,828)	(217,920)
Foreign										(2,023)	(2,320)	(506)
Total income (loss) from continuing operations before income taxes		$ (35,942)	$ (2,098)	$ (4,852)	$ (8,862)	$ (46,483)	$ (5,386)	$ (8,001)	$ (9,278)	$ (51,754)	$ (69,148)	$ (218,426)