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Investments in Unconsolidated Subsidiaries (Tables)
3 Months Ended
Mar. 31, 2019
Equity Method Investments And Joint Ventures [Abstract]  
Schedule of Condensed Financial Information of Equity Method Investments

Combined condensed financial information for the entities accounted for using the equity method is as follows (dollars in thousands):

 

 

 

Three Months Ended March 31,

 

 

 

 

2019

 

 

 

2018

 

Revenue

 

$

365,125

 

 

$

343,199

 

Operating income

 

 

94,621

 

 

 

136,208

 

Net income

 

 

48,928

 

 

 

93,996