Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Intangible Assets (Details)

v3.20.2
Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]          
Cost $ 244,364   $ 244,364   $ 258,764
Accumulated Amortization (128,638)   (128,638)   (125,564)
Accumulated Impairment Loss (3,814)   (3,814)   (1,025)
Net Intangible Assets 111,912   111,912   132,175
Amortization of intangible assets 4,500 $ 5,000 9,200 $ 10,000  
Impairment charge     30,945    
Aviation          
Finite-Lived Intangible Assets [Line Items]          
Impairment charge 30,900   30,945    
Aviation | CT Aerospace          
Finite-Lived Intangible Assets [Line Items]          
Impairment charge 2,800        
Contract and customer-related          
Finite-Lived Intangible Assets [Line Items]          
Cost 213,194   213,194   227,594
Accumulated Amortization (103,739)   (103,739)   (102,169)
Accumulated Impairment Loss (3,814)   (3,814)   (1,025)
Net Intangible Assets 105,641   105,641   124,400
Acquired technologies          
Finite-Lived Intangible Assets [Line Items]          
Cost 12,400   12,400   12,400
Accumulated Amortization (10,224)   (10,224)   (9,660)
Accumulated Impairment Loss 0   0   0
Net Intangible Assets 2,176   2,176   2,740
Trade names          
Finite-Lived Intangible Assets [Line Items]          
Cost 18,770   18,770   18,770
Accumulated Amortization (14,675)   (14,675)   (13,735)
Accumulated Impairment Loss 0   0   0
Net Intangible Assets $ 4,095   $ 4,095   $ 5,035