Leases	3 Months Ended
Mar. 31, 2019
Leases [Abstract]
Leases	Leases Rent expense related to operating leases was $1.9 million, of which $1.2 million was related party rent, during each of the three months ended March 31, 2019 and 2018.

The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=77888251

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-URI http://asc.fasb.org/topic&trid=2208923

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