Subsequent Event (Notes)

6 Months Ended

Jun. 30, 2018

Subsequent Event [Line Items]

Subsequent Events [Text Block]

13. Subsequent Events

Management has evaluated all events and transactions that occurred after June 30, 2018.  During this period, the Company had no material subsequent events requiring recognition in the consolidated financial statements, except as noted below:

On July 1, 2018, the Company purchased the remaining redeemable noncontrolling interest for one of its joint ventures for $7.0 million, with a short-term earn out provision, which could increase the purchase price to a maximum of $10.0 million.