Accounts Receivable and Allowance for Doubtful Accounts (Tables)

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Summary of Allowance for Doubtful Accounts

A summary of activity in the Company’s allowance for doubtful accounts is as follows (in thousands):

Balance at December 31, 2015	$	16,877
Additions charged to provision for doubtful accounts		5,483
Accounts written off, net of recoveries		(3,896	)
Balance at March 31, 2016		18,464