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Supplemental Cash Flow Information
 12 Months Ended
Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
Supplemental Cash Flow Information

The following represents supplemental cash flow information (in thousands):
 
For the Years Ended December 31,
  
2018
 
2017
 
2016
Supplemental Disclosure of Non-cash Investing and Financing Activities
 
 
 
 
 
Class A and Class B common stock issued in connection with business combinations
$
83,173

 
$
—

 
$
177,795

Change in goodwill due to measurement period adjustments related to business combinations
(117
)
 
1,611

 
—

Decrease in accrued financing costs related to 2021 Notes
—

 
196

 
—

Consideration for asset acquisitions or business combinations
500

 
—

 
—

Settlement of escrow related to asset acquisition
2,519

 
—

 
—

Settlement of indemnification asset
1,004

 
—

 
—

Tax benefit related to Accordion intangible technology
—

 
2,042

 
—

Acquisition consideration payable
—

 
—

 
1,148

Accrued property and equipment purchases
368

 
229

 
446

Accrued deferred financing costs
607

 
—

 
1,036

Effects of Class B Exchanges
 
 
 
 
 
Decrease in non-controlling interests as a result of Class B Exchanges
34,682

 
168,883

 
28,220

Decrease in deferred tax liability as a result of securities offerings and exchanges
652

 
12,857

 
1,606

 
 
 
 
 
 
Supplemental Disclosures
 
 
 
 
 
Cash paid during the period for interest
2,500

 
2,472

 
—

Cash paid during the year for taxes, net
343

 
674

 
—