SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| VALUATION AND QUALIFYING ACCOUNTS | |||
| Balance at Beginning of Period | $ 14,706 | $ 14,600 | $ 13,636 |
| Charged to Costs and Expenses | 13,606 | 10,455 | 11,257 |
| Net (Deductions) Recoveries | (11,646) | (10,349) | (10,293) |
| Balance at End of Period | $ 16,666 | $ 14,706 | $ 14,600 |
| X | ||||||||||
- Definition Valuation Allowances and Reserves Deductions Recoveries Net No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|