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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Changes in Allowance for Doubtful Accounts

The following table presents the changes in the allowance for doubtful accounts (in thousands):

			Year ended December 31,
			2020						2019						2018
Balance, beginning of year			$	9,049					$	7,296					$	4,486
Add: adoption of ASC 326			461						—						—
Add: provision for doubtful accounts			10,515						9,129						7,353
Less: write-offs, net of recoveries and other adjustments			(7,314)						(7,376)						(4,543)
Balance, end of year			$	12,711					$	9,049					$	7,296

Schedule of Changes in Contractual Allowance

The following table presents the changes in the contractual allowance (in thousands):

			Year ended December 31,
			2020						2019						2018
Balance, beginning of year			$	15,433					$	9,205					$	6,345
Add: allowance for contractual adjustments			20,916						15,518						9,095
Less: contractual adjustments			(15,068)						(9,290)						(6,235)
Balance, end of year			$	21,281					$	15,433					$	9,205

Disaggregated Revenue by Payor Type and Major Service Line

The Company disaggregates revenue from contracts with customers by payor type. The Company believes these categories aggregate the payor types by nature, amount, timing and uncertainty of its revenue streams. Disaggregated revenue by payor type and major service line for the years ended December 31, 2020 and December 31, 2019 were as follows (in thousands):

			Year Ended December 31,
			2020						2019						2018
Contracted third-party payors			$	135,939					$	101,845					$	56,949
Non-contracted third-party payors			15,295						10,770						12,447
Centers for Medicare & Medicaid			72,536						58,918						40,482
Healthcare institutions			41,396						43,019						37,399
Total			$	265,166					$	214,552					$	147,277

Schedule of Impact of Adoption of ASU 2014-09 on Financial Statements

The following table presents the impact of adoption of ASU 2014-09 on the Consolidated Statement of Operations and the Consolidated Balance Sheet (in thousands):

			Year Ended December 31, 2018
Consolidated Statement of Operations Impact:			As Reported						Without the adoption of Topic 606						Impact
Revenue			$	147,293					$	145,320					$	1,973
Sales, General & Administrative Expense			$	131,582					$	132,603					$	(1,021)
Net Loss			$	(48,280)					$	(51,274)					$	2,994
			Year Ended December 31, 2018
Consolidated Balance Sheet Impact:			As Reported						Without the adoption of Topic 606						Impact
Accounts Receivable, net			$	21,977					$	17,629					$	4,348
Accumulated Deficit			$	(203,515)					$	(207,863)					$	4,348

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