OVERVIEW AND BASIS OF PRESENTATION (Tables)

12 Months Ended

Dec. 31, 2020

OVERVIEW AND BASIS OF PRESENTATION [Abstract]

Restrictions on Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported in the Consolidated Balance Sheets that sum to the amounts reported in the Consolidated Statement of Cash Flows (in thousands):

	December 31, 2020		December 31, 2019		December 31, 2018
Cash and cash equivalents	$	132,914	$	82,407	$	78,237
Restricted cash included in "Prepaid and other current assets"		26,101		23,172		—
Restricted cash included in "Other noncurrent assets"		—		12		—
Total	$	159,015	$	105,591	$	78,237

Schedule of property, plant and equipment useful lives

Depreciation and amortization are computed on the straight-line method based on the following estimated useful lives:

Building	30 years
Computer equipment and software	3 to 7 years
Telephone equipment	4 to 7 years
Furniture and fixtures	5 years
Leasehold improvements	Lesser of economic useful life (typically 10 years) or original lease term
Other	3 to 7 years