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CONSOLIDATED STATEMENTS OF EQUITY - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total Shareholders' Equity [Member]
Non-controlling Interests [Member]
Total
Beginning Balance at Dec. 31, 2012 $ 141 $ 37,489 $ 111,321 $ (31,628) $ 117,323 $ 17,336 $ 134,659
Beginning Balance (in shares) at Dec. 31, 2012 14,130     (2,215)      
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Proceeds from exercise of stock options $ 2 45 0 $ 0 47 0 47
Proceeds from exercise of stock options (in shares) 17     0      
Net tax benefit from equity-based awards $ 0 695 0 $ 0 695 0 695
Issuance of restricted stock $ 0 0 0 0 0 0 0
Issuance of restricted stock (in shares) 175            
Cancellation of restricted stock $ 0 0 0 0 0 0 0
Cancellation of restricted stock (in shares) (6)            
Compensation expense - restricted stock $ 0 2,743 0 0 2,743 0 2,743
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans 0 248 0 0 248 0 248
Purchase of businesses 0 0 0 0 0 10,541 10,541
Reclass to redeemable non-controlling interests 0 0 0 0 0 (4,104) (4,104)
Acquisitions and sales of noncontrolling interests, net 0 (651) 0 0 (651) (155) (806)
Cash dividends to shareholders 0 0 (4,838) 0 (4,838) 0 (4,838)
Distributions to non-controlling interest partners 0 0 0 0 0 (9,164) (9,164)
Net income 0 0 12,723 0 12,723 8,273 20,996
Ending Balance at Dec. 31, 2013 $ 143 40,569 119,206 $ (31,628) 128,290 22,727 151,017
Ending Balance (in shares) at Dec. 31, 2013 14,316     (2,215)      
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Proceeds from exercise of stock options $ 1 43 0 $ 0 44 0 44
Proceeds from exercise of stock options (in shares) 21            
Net tax benefit from equity-based awards $ 0 948 0 0 948 0 948
Issuance of restricted stock $ 1 0 0 0 1 0 1
Issuance of restricted stock (in shares) 150            
Cancellation of restricted stock $ 0 0 0 0 0 0 0
Compensation expense - restricted stock 0 3,363 0 0 3,363 0 3,363
Purchase of businesses 0 0 0 0 0 4,725 4,725
Revaluation of redeemable non-controlling interests   (1,086) 0 0 (1,086) 0 (1,086)
Reclass to redeemable non-controlling interests 0 0 0 0 0 (6,375) (6,375)
Acquisitions and sales of noncontrolling interests, net 0 (260) 0 0 (260) (63) (323)
Cash dividends to shareholders 0   (5,873)   (5,873) 0 (5,873)
Contribution of non-controlling interest partners 0 0 0 0 0 177 177
Distributions to non-controlling interest partners 0 0 0 0 0 (9,432) (9,432)
Net income 0 0 20,853 0 20,853 9,175 30,028
Ending Balance at Dec. 31, 2014 $ 145 43,577 134,186 $ (31,628) 146,280 20,934 167,214
Ending Balance (in shares) at Dec. 31, 2014 14,487     (2,215)      
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Proceeds from exercise of stock options $ 1 4 0 $ 0 5 0 5
Proceeds from exercise of stock options (in shares) 1            
Net tax benefit from equity-based awards $ 0 947 0 0 947 0 947
Issuance of restricted stock $ 0 0 0 0 0 0 0
Issuance of restricted stock (in shares) 148            
Compensation expense - restricted stock $ 0 4,491 0 0 4,491 0 4,491
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans 0 446 0 0 446 0 446
Purchase of businesses 0 0 0 0 0 12,292 12,292
Revaluation of redeemable non-controlling interests   (319) 0 0 (319) 0 (319)
Reclass to redeemable non-controlling interests 0 0 0 0 0 (2,681) (2,681)
Acquisitions and sales of noncontrolling interests, net 0 (3,895) 0 0 (3,895) (260) (4,155)
Cash dividends to shareholders 0   (7,449)   (7,449) 0 (7,449)
Contribution of non-controlling interest partners 0 0 0 0 0 17 17
Distributions to non-controlling interest partners 0 0 0 0 0 (8,723) (8,723)
Net income 0 0 22,279 0 22,279 8,746 31,025
Ending Balance at Dec. 31, 2015 $ 146 $ 45,251 $ 149,016 $ (31,628) $ 162,785 $ 30,325 $ 193,110
Ending Balance (in shares) at Dec. 31, 2015 14,636     (2,215)