XML 120 R104.htm IDEA: XBRL DOCUMENT v3.20.4
Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Credit Losses - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year  $ 14,466 $ 15,361 $ 17,230
Costs and Expenses 3,269 2,628 2,123
Cumulative Effect Adjustment [1] 3,150    
Deductions [2] (2,854) (3,523) (3,992)
Balance at End of Year $ 18,031 $ 14,466 $ 15,361
[1] Represents the adjustment to our allowance for credit losses, which was recorded to retained earnings upon the adoption of Accounting Standards Codification Topic 326.
[2] Deductions primarily represent uncollectible balances of accounts receivable written off, net of recoveries.