Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets:
Money Market Funds, at Carrying Value	$ 70,000
Total assets measured at fair value	70,458	$ 321
Liabilities:
Derivative Liability, Current	147	433
Total liabilities measured at fair value	169,925	168,350
Derivative
Assets:
Derivative assets	458	321
Contingent consideration
Liabilities:
Total liabilities measured at fair value	16,501	16,535
Deferred consideration
Liabilities:
Total liabilities measured at fair value	153,277	151,382
Level 1
Assets:
Money Market Funds, at Carrying Value	70,000
Total assets measured at fair value	70,000	0
Liabilities:
Total liabilities measured at fair value	0	0
Level 1 | Derivative
Assets:
Derivative assets	0	0
Level 1 | Contingent consideration
Liabilities:
Total liabilities measured at fair value	0	0
Level 1 | Deferred consideration
Liabilities:
Total liabilities measured at fair value	0	0
Level 2
Assets:
Total assets measured at fair value	458	321
Liabilities:
Total liabilities measured at fair value	153,424	151,815
Level 2 | Derivative
Assets:
Derivative assets	458	321
Liabilities:
Derivative Liability, Current	147	433
Level 2 | Contingent consideration
Liabilities:
Total liabilities measured at fair value	0	0
Level 2 | Deferred consideration
Liabilities:
Total liabilities measured at fair value	153,277	151,382
Level 3
Assets:
Total assets measured at fair value	0	0
Liabilities:
Total liabilities measured at fair value	16,501	16,535
Level 3 | Derivative
Assets:
Derivative assets	0	0
Level 3 | Contingent consideration
Liabilities:
Total liabilities measured at fair value	16,501	16,535
Level 3 | Deferred consideration
Liabilities:
Total liabilities measured at fair value	$ 0	$ 0