Commitments and Contingencies - Schedule of Accrued Medical Claims (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2019	Aug. 15, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Umbrellas insurance coverage	$ 1,000
Aggregate medical claims for umbrella insurance coverage per calendar year	9,600
Accrued medical claims	$ 1,221		$ 1,181
Income tax examination, proposed penalty		$ 1,200

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant