Debt (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt

The following table summarizes borrowings under these facilities as of the periods presented:

Lender	Borrowing Capacity as of September 30, 2020		Borrowings as of September 30, 2020		Borrowings as of December 31, 2019
Western Alliance Bank	$	50,000	$	13,459	$	8,489
Texas Capital Bank, N.A.	40,000		19,650		10,210
Flagstar Bank	15,000		7,199		2,603
Total	$	105,000	$	40,308	$	21,302

Lender	Borrowing Capacity as of September 30, 2020		Borrowings as of September 30, 2020		Borrowings as of December 31, 2019
Goldman Sachs Bank USA	$	100,000	$	14,923	$	4,444

The following details the carrying value of our 2023 notes as of the dates presented:

	September 30, 2020		December 31, 2019
Principal	$	143,750	$	143,750
Less: debt discount, net of amortization	(17,013)		(21,231)
Less: debt issuance costs, net of amortization	(2,242)		(2,803)
Net carrying amount of the 2023 notes	$	124,495	$	119,716

Interest Income and Interest Expense Disclosure

The following table sets forth total interest expense recognized related to our 2023 notes for the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Amortization of debt discount	$	1,422	$	1,359	$	4,217	$	4,031
Amortization of debt issuance costs	189		182		562		541
Total amortization of debt issuance costs and accretion of equity portion	1,611		1,541		4,779		4,572
Contractual interest expense	629		629		1,887		1,887
Total interest expense related to the notes	$	2,240	$	2,170	$	6,666	$	6,459