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 (As Reported [Member]) at Dec. 31, 2013 $ 143 $ 40,569 $ 119,206 $ (31,628) $ 128,290 $ 22,727 $ 151,017
Beginning balance (Adjustment [Member]) 0 13,970 (7,329) 0 6,641 (21,424) (14,783)
Beginning balance at Dec. 31, 2013 [1] $ 143 54,539 111,877 $ (31,628) 134,931 1,303 136,234
Beginning balance (in shares) (As Reported [Member]) at Dec. 31, 2013 14,316     (2,215)      
Beginning balance (in shares) at Dec. 31, 2013 [1] 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     0      
Net tax benefit from exercise of stock options $ 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     0      
Compensation expense - restricted stock/equity-based awards $ 0 3,363 0 $ 0 3,363 0 3,363
Acquisitions and sales of non-controlling interests [1]   (94) 0 0 (94) (35) (129)
Distributions to non-controlling interest partners [1] 0 0 0 0 0 (5,963) (5,963)
Dividends payable to USPT shareholders 0 0 (5,873) 0 (5,873) 0 (5,873)
Net income [1] 0 0 19,131 0 19,131 6,183 25,314
Ending balance at Dec. 31, 2014 [1] $ 145 58,799 125,135 $ (31,628) 152,451 1,488 153,939
Ending balance (in shares) at Dec. 31, 2014 [1] 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     0      
Net tax benefit from exercise of stock options $ 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     0      
Compensation expense - restricted stock/equity-based awards $ 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
Acquisitions and sales of non-controlling interests 0 (449) [1] 0 [1] 0 [1] (449) [1] (217) [1] (666) [1]
Distributions to non-controlling interest partners 0 0 0 0 0 [1] (5,892) [1] (5,892) [1]
Dividends payable to USPT shareholders 0 0 (7,449) 0 (7,449) 0 (7,449)
Net income [1] 0 0 20,615 0 20,615 5,874 26,489
Ending balance at Dec. 31, 2015 [1] $ 146 64,238 138,301 $ (31,628) 171,057 1,253 172,310
Ending balance (in shares) at Dec. 31, 2015 [1] 14,636     (2,215)      
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of restricted stock $ 1 0 0 $ 0 1 0 1
Issuance of restricted stock (in shares) 97            
Cancellation of restricted stock $ 0 0 0 0 0 0 0
Compensation expense - restricted stock/equity-based awards 0 4,962 0 0 4,962 0 4,962
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans 0 211 0 0 211 0 211
Acquisitions and sales of non-controlling interests 0 (533) 0 0 (533) (112) (645)
Adjustment for prior year acquisitions of non-controlling interest - tax true up 0 (191) 0 0 (191) 0 (191)
Distributions to non-controlling interest partners 0 0 0 0 0 (5,718) (5,718)
Dividends payable to USPT shareholders 0 0 (8,510) 0 (8,510) 0 (8,510)
Net income 0 0 20,551 0 20,551 5,717 26,268
Ending balance at Dec. 31, 2016 $ 147 $ 68,687 $ 150,342 $ (31,628) $ 187,548 $ 1,140 $ 188,688
Ending balance (in shares) at Dec. 31, 2016 14,733     (2,215)      
[1] as restated