Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Summary of Significant Accounting Policies [Abstract]

Schedule of Asset Classes and Related Estimated Useful Lives



Towers and related components	3 - 15 years
Furniture, equipment and vehicles	2 - 7 years
Buildings and improvements	10 - 30 years

Allowance for Doubtful Accounts



	For the year ended December 31,
	2019		2018		2017

		(in thousands)
Beginning balance	$	23,880	$	26,481	$	24,518
Provision for doubtful accounts		155		551		2,909
Write-offs		(1,455)		(591)		(647)
Recoveries ⁽¹⁾		(2,296)		—		—
Acquisitions		1,193		—		—
Currency translation adjustment		(275)		(2,561)		(299)
Ending balance	$	21,202	$	23,880	$	26,481

(1)On June 20, 2016, Oi, S.A. (“Oi”), the Company’s largest customer in Brazil, filed a petition for judicial reorganization in Brazil. Since the filing, the Company has received all rental payments due in connection with obligations of Oi accruing post-petition. On January 8, 2018, Oi’s reorganization plan was approved by the Brazilian courts and Oi is expected to fully resolve all its pre-petition obligations in accordance with the terms of the plan, which includes a 10% reduction in the receivable and four annual installment payments, the first of which was received in March 2019.

Schedule of Right-of-use Assets and Liabilities



Operating lease right-of-use assets, net	$	2,567,507
Financing lease right-of-use assets, net		4,710
Right-of-use assets, net	$	2,572,217

Current operating lease liabilities	$	245,665
Current financing lease liabilities		1,350
Current lease liabilities	$	247,015

Long-term operating lease liabilities	$	2,276,858
Long-term financing lease liabilities		2,542
Long-term lease liabilities	$	2,279,400

Components of Lease Cost, Lease Term, and Discount Rate



	For the year ended
	December 31, 2019
	(in thousands)
Amortization of right-of-use assets	$	1,275
Interest on finance lease liabilities		115
Total finance lease cost		1,390
Operating lease cost ⁽¹⁾		266,681
Variable lease cost⁽¹⁾		38,477
Total lease cost	$	306,548

Weighted Average Remaining Lease Term as of December 31, 2019
Operating leases		16.6 years
Finance leases		3.3 years

Weighted Average Discount Rate as of December 31, 2019
Operating leases		6.1%
Finance leases		3.6%

	For the year ended
Other information:	December 31, 2019
Cash paid for amounts included in measurement of lease liabilities:
Cash flows from operating leases	$	237,758
Cash flows from finance leases	$	1,275

(1)For the year ended December 31, 2018, operating lease costs and variable lease costs were $273.5 million and $27.1 million, respectively.