Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Net Income Per Share and Stockholders' Equity, Anti Dilution Table (Details) shares in Thousands		3 Months Ended		6 Months Ended
	Apr. 07, 2016	Jun. 30, 2019 shares	Jun. 30, 2018 shares	Jun. 30, 2019 shares	Jun. 30, 2018 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		9	2	5	1
Series A Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share
Preferred Stock, Rights Conversion Ratio into Preferred Stock	1