Annual report pursuant to Section 13 and 15(d)

INCOME TAXES NOL and tax credit carryforwards (Details)

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INCOME TAXES NOL and tax credit carryforwards (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2018
USD ($)
Operating Loss Carryforwards  
Percentage of post 2017 NOLs, deductible 80.00%
State  
Operating Loss Carryforwards  
Operating loss carryforwards $ 282.3
State | Minimum  
Operating Loss Carryforwards  
Expiration date Jan. 01, 2019
State | Maximum  
Operating Loss Carryforwards  
Expiration date Dec. 31, 2038
Foreign  
Operating Loss Carryforwards  
Operating loss carryforwards $ 5.3
Expiration date Dec. 31, 2028
Tax credit carryforward $ 5.6
Foreign | Minimum  
Operating Loss Carryforwards  
Expiration date Jan. 01, 2019
Foreign | Maximum  
Operating Loss Carryforwards  
Expiration date Dec. 31, 2026