Quarterly report pursuant to Section 13 or 15(d)

Redeemable Noncontrolling Interests (Details)

v3.8.0.1
Redeemable Noncontrolling Interests (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
joint_venture
Mar. 31, 2017
USD ($)
Noncontrolling Interest [Abstract]    
Number of joint ventures with redeemable noncontrolling interests | joint_venture 2  
Redeemable Noncontrolling Interest [Roll Forward]    
Beginning balance $ 23,125 $ 22,979
Distributions to noncontrolling interests (452) (415)
Net income attributable to noncontrolling interests 638 567
Adjustment to arrive at fair value of interests 537 545
Ending balance $ 23,848 $ 23,676