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Stock Compensation and Other Benefit Plans for ROIC (Tables)
 12 Months Ended
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Nonvested Restricted Stock Units Activity
 
Shares
 
Weighted Average
Grant Date Fair Value
Non-vested at December 31, 2015
627,471

 
$
14.39

Granted
350,614

 
$
17.33

Vested
(310,295
)
 
$
13.99

Forfeited
(7,332
)
 
$
17.62

Non-vested at December 31, 2016
660,458

 
$
16.10