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STOCKHOLDERS' EQUITY: Recognition of incremental and accelerated compensation costs related to the PSU conversions (Details) - Performance Based Restricted Stock Units
$ in Thousands
Oct. 01, 2018
USD ($)
Share-based compensation  
Incremental compensation cost $ 8,778
Accelerated compensation costs 1,607
Continuing Operations  
Share-based compensation  
Incremental compensation cost 7,179
Accelerated compensation costs 0
Discontinued Operations, Disposed of by Sale  
Share-based compensation  
Incremental compensation cost 1,599
Accelerated compensation costs $ 1,607