Pending Coherent Acquisition (Details) $ / shares in Units, $ in Millions				3 Months Ended
	Jun. 08, 2021 USD ($)	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 30, 2021	Dec. 31, 2021 USD ($) d $ / shares shares	Sep. 30, 2021 $ / shares shares	Jun. 30, 2021 $ / shares	Mar. 25, 2021 USD ($)	Jun. 30, 2020 $ / shares
Business Acquisition [Line Items]
Common stock, par value (in usd per share)						$ 0		$ 0
Preferred stock, par value (in usd per share)						$ 0		$ 0
Series B-1 Convertible Preferred Stock
Business Acquisition [Line Items]
Preferred stock, dividend rate, percentage			5.00%
Series B-1 Convertible Preferred Stock | Investment Agreement, BCPE Watson (DE) SPV, LP
Business Acquisition [Line Items]
Shares issued (in shares) | shares		75,000
Price per share (in usd per share)		$ 10,000
Aggregate purchase price of stock sold | $		$ 750
Preferred stock, par value (in usd per share)		$ 0
Series B-2 Convertible Preferred Stock | Over-Allotment Option II
Business Acquisition [Line Items]
Shares issued (in shares) | shares		35,000
Aggregate purchase price of stock sold | $	$ 2,200	$ 350
Forecast | Subsequent Event | Series B-2 Convertible Preferred Stock | Investment Agreement, BCPE Watson (DE) SPV, LP
Business Acquisition [Line Items]
Shares issued (in shares) | shares				105,000
Aggregate purchase price of stock sold | $				$ 1,100
Preferred stock, par value (in usd per share)				$ 0
Coherent Inc. | Debt Financing Under Commitment Letter
Business Acquisition [Line Items]
Debt financing commitment | $							$ 5,100
Coherent Inc. | Forecast | Subsequent Event
Business Acquisition [Line Items]
Common stock, par value (in usd per share)				$ 0.01
Acquisition, cash consideration per share (in usd per share)					$ 220.00
Business acquisition number of shares to be received by acquiree (in shares) | shares				0.91	0.91
Common stock, par value (in usd per share)					$ 0
Business combination, weighted average price of share, trading day period ending prior to closing | d				10
Vesting employment benefit acceleration period				12 months
Business combination, qualifying termination, of acquiree, holder of converted restricted stock units, year one, acceleration vesting percentage				100.00%
Business combination, qualifying termination, of acquiree, holder of converted restricted stock units, year two, acceleration vesting percentage				50.00%