Fair Value Measurements - (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

The following tables provide the assets and liabilities carried at fair value measured on a recurring basis at March 31, 2019 and December 31, 2018:

			Fair Value Measurements Using
	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
March 31, 2019
Assets:
Available-for-sale debt securities:
Municipal notes and bonds	$	70,602	$	—	$	70,602	$	—
Foreign currency forward contracts		13		—		13		—
Total assets	$	70,615	$	—	$	70,615	$	—
Liabilities:
Contingent consideration - acquisitions	$	2,060	$	—	$	—	$	2,060
Total liabilities	$	2,060	$	—	$	—	$	2,060
December 31, 2018
Assets:
Available-for-sale debt securities:
Municipal notes and bonds	$	62,684	$	—	$	62,684	$	—
Total assets	$	62,684	$	—	$	62,684	$	—
Liabilities:
Contingent consideration - acquisitions	$	2,060	$	—	$	—	$	2,060
Foreign currency forward contracts		32		—		32		—
Total liabilities	$	2,092	$	—	$	32	$	2,060

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

This table presents a reconciliation of all liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2019:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Balance at December 31, 2018	$	2,060
Additions		—
Payments		—
Transfer into (out of) Level 3		—
Balance at March 31, 2019	$	2,060