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Premiums Receivable (Tables)
 12 Months Ended
Dec. 31, 2018
Insurance [Abstract]  
Components of Premiums Receivable The components of premiums receivable are shown below:

 

  

 

December 31,

 

 

 

2018

 

 

2017

 

 

 

(in thousands)

 

Premiums receivable

 

$

167,868

 

 

$

179,460

 

Allowance for doubtful accounts

 

 

(5,390

)

 

 

(5,226

)

Premiums receivable, net

 

$

162,478

 

 

$

174,234

 
Summary of Activity in Allowance for Doubtful Accounts

The following summarizes the activity in the allowance for doubtful accounts:

 

  

 

December 31,

 

 

 

2018

 

 

2017

 

 

2016

 

 

 

(in thousands)

 

Balance, beginning of year

 

$

5,226

 

 

$

5,212

 

 

$

4,852

 

Provision for bad debts

 

 

883

 

 

 

1,394

 

 

 

1,646

 

Write-offs

 

 

(719

)

 

 

(1,380

)

 

 

(1,286

)

Balance, end of year

 

$

5,390

 

 

$

5,226

 

 

$

5,212