Annual report pursuant to Section 13 and 15(d)

Fair Value of Financial Instruments (Details)

v3.8.0.1
Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Carrying Amount [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents $ 197,337 $ 144,122
Restricted cash 46,012 46,106
Notes receivable, net 431,801 430,480
Lines-of-credit, notes payable, and receivable-backed notes payable 521,312 513,371
Junior subordinated debentures 70,384 69,044
Estimated Fair Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 197,337 144,122
Restricted cash 46,012 46,106
Notes receivable, net 525,000 545,000
Lines-of-credit, notes payable, and receivable-backed notes payable 529,400 520,600
Junior subordinated debentures $ 88,500 $ 90,000