Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Cash flows from operating activities:
Net income from continuing operations	$ 22.6	$ 21.1	$ 44.4	$ 26.6
Adjustments to reconcile net income from continuing operations to net cash provided by (used in) operating activities:
Depreciation and amortization			1.8	1.9
Provision for credit losses			1.0	1.2
Stock-based compensation			2.4	1.4
Benefit from deferred taxes			(0.3)	(2.7)
Changes in operating assets and liabilities:
Accounts receivable			(29.5)	(10.0)
Inventories			(33.0)	1.1
Prepaid expenses and other assets			(0.3)	(1.4)
Income taxes payable			(6.1)	(3.3)
Accounts payable			14.5	6.6
Accrued expenses, other current liabilities and other liabilities			3.0	(0.9)
Net cash (used in) provided by operating activities from continuing operations			(2.1)	20.5
Net cash provided by operating activities from discontinued operations			0.0	11.8
Net cash (used in) provided by operating activities			(2.1)	32.3
Cash flows from investing activities:
Purchases of property, plant and equipment			(2.1)	(2.1)
Net cash used in investing activities			(2.1)	(2.1)
Cash flows from financing activities:
Proceeds from short-term borrowings			95.4	19.6
Repayment of short-term borrowings			(69.9)	(19.6)
Dividends paid			(13.9)	(12.5)
Proceeds from issuance of common stock			0.7	2.5
Payment of payroll taxes on stock-based compensation through shares withheld			(0.4)	(2.0)
Proceeds from the issuance of common stock from employee stock purchase plan			0.6	0.5
Net cash provided by (used in) financing activities			12.5	(11.5)
Effects of exchange rates on cash			(0.2)	0.0
Net increase in cash			8.1	18.7
Cash, cash equivalents and restricted cash – beginning of period			15.4	24.0	$ 24.0
Cash, cash equivalents and restricted cash – end of period	23.5	42.7	23.5	42.7	15.4
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	23.5	41.6	23.5	41.6	15.4
Restricted cash	0.0	1.1	0.0	1.1
Cash, cash equivalents and restricted cash	$ 23.5	$ 42.7	23.5	42.7	15.4
Right-of-use assets obtained in exchange for lease obligations:
Operating leases			$ 34.6	$ 2.6	$ 2.6