Annual report pursuant to Section 13 and 15(d)

Subsequent Event (Notes)

Subsequent Event (Notes)
12 Months Ended
Dec. 31, 2018
Subsequent Events [Abstract]  
Subsequent Events
On March 7, 2019, the Company in conjunction with its 50% joint venture partner entered into an agreement to sell Dart for $75 million.  The transaction is expected to close in the second quarter of 2019, subject to the satisfaction or waiver of customary closing conditions. At closing, the Company expects to receive cash proceeds, including repayment of a related party note receivable, of approximately $40 million. The Company’s tax basis in Dart was $23.6 million as of December 31, 2018.