Income Taxes - Schedule of Tax Attributes (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating Loss Carryforwards [Line Items]
Disallowed business interest expense carryover	$ 0	$ 0
Attributes for which a deferred tax asset is recorded
Operating Loss Carryforwards [Line Items]
Disallowed business interest expense carryover	0	0
Federal
Operating Loss Carryforwards [Line Items]
Federal net operating losses - limited carryover	73,357	77,052
Federal net operating losses - unlimited carryover	35,213	12,739
State net operating losses	36,000
Federal \| Sec. 382 limited utilization
Operating Loss Carryforwards [Line Items]
Federal net operating losses - limited carryover	72,543	76,238
Federal \| Attributes for which a deferred tax asset is recorded
Operating Loss Carryforwards [Line Items]
Federal net operating losses - limited carryover	814	814
Federal net operating losses - unlimited carryover	35,213	12,739
State
Operating Loss Carryforwards [Line Items]
State net operating losses	34,279	11,884
State \| Sec. 382 limited utilization
Operating Loss Carryforwards [Line Items]
State net operating losses	832	832
State \| Attributes for which a deferred tax asset is recorded
Operating Loss Carryforwards [Line Items]
State net operating losses	$ 33,447	11,052
PetCareRx
Operating Loss Carryforwards [Line Items]
Disallowed business interest expense carryover		1,855
PetCareRx \| Attributes for which a deferred tax asset is recorded
Operating Loss Carryforwards [Line Items]
Disallowed business interest expense carryover		1,855
PetCareRx \| Federal
Operating Loss Carryforwards [Line Items]
Federal net operating losses - limited carryover		85,454
Federal net operating losses - unlimited carryover		10,501
PetCareRx \| Federal \| Sec. 382 limited utilization
Operating Loss Carryforwards [Line Items]
Federal net operating losses - limited carryover		83,300
PetCareRx \| Federal \| Attributes for which a deferred tax asset is recorded
Operating Loss Carryforwards [Line Items]
Federal net operating losses - limited carryover		2,154
Federal net operating losses - unlimited carryover		10,501
PetCareRx \| State
Operating Loss Carryforwards [Line Items]
State net operating losses		11,040
PetCareRx \| State \| Sec. 382 limited utilization
Operating Loss Carryforwards [Line Items]
State net operating losses		2,066
PetCareRx \| State \| Attributes for which a deferred tax asset is recorded
Operating Loss Carryforwards [Line Items]
State net operating losses		$ 8,974