Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Assets, Liabilities, and Equity Measured at Fair Value on a Recurring Basis

A summary of assets and (liabilities) at March 31, 2019 and December 31, 2018, related to the Company's financial instruments, measured at fair value on a recurring basis, is set forth below:

			Fair Value
Financial Instrument	Balance sheet location	Fair Value Hierarchy	March 31, 2019			December 31, 2018
Money market funds	Cash and cash equivalents	Level 1	$	375,259		$	425,776
Forward sales commitments	Prepaid expenses and other current assets	Level 2	16			—
Forward sales commitments	Accrued liabilities	Level 2	(401		)	(141		)
Loans held for sale	Prepaid expenses and other current assets	Level 2	15,748			4,913
Interest rate lock commitments	Prepaid expenses and other current assets	Level 3	715			254
Interest rate lock commitments	Accrued liabilities	Level 3	(16		)	—