Fair Value Measurements - Additional Information (Details) € in Millions							1 Months Ended			3 Months Ended	12 Months Ended
	Nov. 10, 2021 shares	Nov. 04, 2021 USD ($)	Jan. 15, 2021 shares	Aug. 04, 2020 USD ($) shares	May 27, 2020 USD ($) shares	Mar. 19, 2020 USD ($) shares	Aug. 31, 2021 USD ($) shares	Dec. 31, 2019 USD ($)	Nov. 30, 2017 USD ($)	Dec. 31, 2021 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2021 EUR (€) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($)	Nov. 30, 2021 shares
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Asset impairment charges											$ 0
Fair value of assets transferred from level 1 to level 2										$ 0	0
Fair value of assets transferred from level 2 to level 1										0	0
Fair value of liabilities transferred from level 1 to level 2										0	0
Fair value of liabilities transferred from level 2 to level 1										$ 0	$ 0
Common stock reserved for future issuance | shares										5,400,000	5,400,000
Common stock, shares issued | shares										39,389,733	39,389,733		35,449,447
Contingent consideration issued											$ 9,195,000		$ 6,267,000	$ 550,000
Change in fair value of contingent consideration obligation											$ (7,046,000)		$ 3,665,000	$ (550,000)
0% Convertible Senior Notes Due 2026
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Debt instrument, interest rate										0.00%	0.00%
Debt instrument, maturity date											Mar. 15, 2026	Mar. 15, 2026
Fair value of convertible senior notes										$ 318,300,000	$ 318,300,000
Principal amount of notes										$ 375,000,000.0	$ 375,000,000.0
0.125% Convertible Senior Notes Due 2024
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Debt instrument, interest rate								0.125%		0.125%	0.125%		0.125%	0.125%
Debt instrument, maturity date								Dec. 15, 2024			Dec. 15, 2024	Dec. 15, 2024	Dec. 15, 2024
Fair value of convertible senior notes										$ 440,600,000	$ 440,600,000		$ 663,600,000
Principal amount of notes								$ 450,000,000.0		$ 450,000,000	$ 450,000,000		$ 450,000,000	$ 450,000,000.0
1.50% Convertible Senior Notes Due 2022
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Debt instrument, interest rate									1.50%	1.50%	1.50%		1.50%
Debt instrument, maturity date									Nov. 01, 2022		Nov. 01, 2022	Nov. 01, 2022	Nov. 01, 2022
Fair value of convertible senior notes										$ 16,000	$ 16,000		$ 265,500,000
Principal amount of notes									$ 115,000,000.0	8,000	8,000		79,795,000
Maximum | 1.50% Convertible Senior Notes Due 2022
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Principal amount of notes										8,000	8,000		79,800,000
Techwan SA
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Common stock reserved for future issuance | shares					6,779
Common stock, shares issued | shares					6,779										6,779
Cash paid					$ 9,400,000
Purchase liabilities					$ 100,000
Number of newly issued common stock | shares					38,425
Techwan SA | Other Expense, Net
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Derivative liabilities and changes in fair value											(200,000)		100,000
Anvil
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Cash paid		$ 70,200,000
Purchase liabilities		1,600,000
Contingent consideration issued		$ 89,655,000
Number of newly issued common stock | shares	574,639
Gain on extinguishment of loan notes										$ 10,100,000
Anvil | Maximum
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Duration of loan notes issued		10 days
Anvil | Call Option
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Number of newly issued common stock | shares	574,639
SnapComms Limited
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Cash paid				$ 13,600,000			$ 2,500,000
Number of newly issued common stock | shares				121,858			12,390
Change in fair value of contingent consideration obligation											$ 700,000
Issuance of common stock for contingent consideration, shares | shares											6,188	6,188
One2Many Group B.V.
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Cash paid						$ 5,500,000
Purchase liabilities						$ 2,000,000.0
Number of newly issued common stock | shares						52,113
Change in fair value of contingent consideration obligation											$ 400,000
Issuance of common stock for contingent consideration, shares | shares											41,668	41,668
Cash paid net of cash acquired | €												€ 4.1
Red Sky Technologies Inc.
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Number of newly issued common stock | shares			162,820
Change in fair value of contingent consideration obligation											$ 8,200,000
Issuance of common stock for contingent consideration, shares | shares											4,058	4,058
Cash paid net of cash acquired											$ 400,000
Fair Value Measurements, Nonrecurring
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Asset impairment charges											$ 0		$ 0	$ 0