Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statement of Changes in Redeemable Non-Controlling Interests and Stockholders' Equity

v3.10.0.1
Consolidated Statement of Changes in Redeemable Non-Controlling Interests and Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Class A
Common Class B
Common Stock
Common Class A
Common Stock
Common Class B
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Cumulative impact from the adoption of ASU (Note 2) | Accounting Standards Update 2014-09 $ (4,454)           $ (4,454)    
Cumulative impact from the adoption of ASU (Note 2) | Accounting Standards Update 2017-12 (54)           432 $ (486)  
Redeemable non-controlling interests, beginning balance at Dec. 31, 2017 10,338                
Increase (Decrease) in Temporary Equity [Roll Forward]                  
Contributions from redeemable non-controlling interests 4,038                
Distributions to redeemable non-controlling interests (307)                
Net income 516                
Redeemable non-controlling interests, ending balance at Sep. 30, 2018 14,585                
Beginning balance (in shares) at Dec. 31, 2017   27,533,049 18,000,000 27,533,049 18,000,000       1,873,266
Beginning balance at Dec. 31, 2017 336,620     $ 3 $ 2 $ 116,196 235,844 (5,626) $ (9,799)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Exercise of stock options (in shares)       625,215          
Exercise of stock options 4,114         4,114     0
Stock-based compensation expense 1,137         1,137     $ 0
Employee Stock Purchase Plan (in shares)       26,075          
Employee Stock Purchase Plan 213         213      
Open market purchase of common shares (in shares)       (212,231)         (212,231)
Open market purchase of common shares (1,772)               $ (1,772)
Unrealized gain from interest rate hedge, net 2,172             2,172  
Foreign currency translation adjustments (161)             (161) $ 0
Net income 26,391           26,391    
Ending balance (in shares) at Sep. 30, 2018   27,972,108 18,000,000 27,972,108 18,000,000       2,085,497
Ending balance at Sep. 30, 2018 $ 364,206     $ 3 $ 2 $ 121,660 $ 258,213 (4,101) $ (11,571)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Cumulative impact from the adoption of ASU (Note 2) | Accounting Standards Update 2017-12               $ 54