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Other Liabilities
 12 Months Ended
Dec. 31, 2019
Other Liabilities Disclosure [Abstract]  
Other Liabilities Other Liabilities 
The Company’s Other liabilities consisted of the following:  
 
December 31, 2019
 
December 31, 2018
 
(In thousands)
Current portion of other long-term liabilities
 
 
 
Operating lease liabilities
$
20,345

 
$
—

Interest rate swap and cap contracts
15,565

 
396

Asset retirement obligations
5,701

 
6,810

Acquisition related contingent consideration
4,963

 
—

Deferred revenue
3,386

 
4,109

Other
3,184

 
8,951

Total current portion of other long-term liabilities
$
53,144

 
$
20,266

 
 
 
 
Noncurrent portion of other long-term liabilities
 
 
 
Acquisition related contingent consideration
$
11,888

 
$
38,266

Interest rate swap and cap contracts
9,723

 
2,894

Deferred revenue
5,589

 
4,319

Other
10,670

 
22,261

Total noncurrent portion of other long-term liabilities
$
37,870

 
$
67,740


As of December 31, 2019 and 2018, the Acquisition-related contingent consideration line consisted of the estimated fair value of the contingent consideration associated with the Spark acquisition. For additional information see Note 1(v). Acquisitions.