Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Other intangibles, net (Narrative) (Details)

v3.8.0.1
Other intangibles, net (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Amortization of intangibles $ 13,632 $ 19,836 $ 23,042
Customer Relationships And Trade Name [Member]      
Amortization of intangibles 31,200 31,900 33,700
Other Intangible Assets [Member] | AeroTurbine, Inc. [Member]      
Tradename and other intangible assets impairment   14,900 $ 24,800
Contractual Vendor Intangible Assets [Member]      
Utilization of intangible assets $ 10,400 $ 17,800