XML 34 R40.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Basis of Presentation and Summary of Significant Accounting Policies - Noncontrolling Interests (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]      
Noncontrolling interests balance January 1 $ 698 $ 698 $ 692
Net income allocable to noncontrolling interests, excluding redeemable noncontrolling interests 532 116 2,014
Distributions to noncontrolling interests 0 0 0
Noncontrolling interests balance at December 31 698 698 698
Excluding Redeemable Noncontrolling Interests      
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]      
Net income allocable to noncontrolling interests, excluding redeemable noncontrolling interests $ 0 $ 0 $ 6