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New Accounting Pronouncements (Tables)
 3 Months Ended
Mar. 31, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]  
Accounts Receivable, Allowance for Credit Losses
The change in the allowance for credit losses for the three months ended March 31, 2020 was as follows (in thousands):
Balance at December 31, 2019
$
14,466

Cumulative-effect adjustment
3,150

Provision for credit losses
2,614

Amounts written off against the allowance
(237
)
Balance at March 31, 2020
$
19,993