Fair Value Measurements - Fair Value of Assets and Liabilities on a Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands		Mar. 31, 2021	Mar. 31, 2020
Carrying Value
ASSETS
Cash and cash equivalents	[1]	$ 73,295	$ 138,012
Restricted cash and cash equivalents		5,280	2,307
Total		78,575	140,319
LIABILITIES
Contingent consideration related to acquisitions		533	1,900
Total		533	1,900
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value
ASSETS
Cash and cash equivalents	[1]	73,295	138,012
Restricted cash and cash equivalents		5,280	2,307
Total		78,575	140,319
LIABILITIES
Contingent consideration related to acquisitions		0	0
Total		0	0
Significant Other Observable Inputs (Level 2) | Fair Value
ASSETS
Cash and cash equivalents	[1]	0	0
Restricted cash and cash equivalents		0	0
Total		0	0
LIABILITIES
Contingent consideration related to acquisitions		533	0
Total		533	0
Unobservable Inputs (Level 3) | Fair Value
ASSETS
Cash and cash equivalents	[1]	0	0
Restricted cash and cash equivalents		0	0
Total		0	0
LIABILITIES
Contingent consideration related to acquisitions		0	1,900
Total		$ 0	$ 1,900

[1] Cash equivalents consist primarily of money market funds.