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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
The future minimum payments for office space and office equipment over the next five years are summarized as follows:
 
Lease Commitments
Year Ending December 31,:
 (in thousands)
2018
$
2,973

2019
949

2020
195

2021
52

2022
25

         Thereafter
25

Total
$
4,219
Schedule of Insurance Proceeds and Provision for Legal Settlements
As of December 31, 2017 and 2016, the insurance proceeds receivable and provision for legal settlements are as follows:
 
 
 
 
 
December 31,
 
2017
 
2016
 
(in thousands)
Insurance Proceeds Receivable
 
 
 
Class action lawsuit insurance proceeds
$
—

 
$
22,000

 
 
 
 
Provision for Legal Settlements
 
 
 
Class action lawsuit settlement
$
—

 
$
(22,250
)
DOJ and SEC settlement
(39,612
)
 
(40,635
)
Relator legal settlement
—

 
(620
)
Relators legal fees
—

 
(405
)
Other litigation settlement
—

 
(100
)
Total provision for legal settlements
(39,612
)
 
(64,010
)
Less: Provision for legal settlements - current
(8,596
)
 
(64,010
)
Provision for legal settlements - non-current
$
(31,016
)
 
$
—