Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Components of income before income tax expense

The components of loss or income before income taxes are as follows: 

	For the years ended December 31,
	2019			2018		2017
United States	$	11,994		$	31,205	$	39,370
Foreign	(38,102		)	5,320		6,423
	$	(26,108	)	$	36,525	$	45,793

Components of income tax expense

The income tax benefit or expense consisted of the following amounts:

	For the years ended December 31,
	2019			2018			2017
Current:
Federal	$	—		$	—		$	(1,101	)
Foreign	(3,599		)	(3,023		)	(1,731		)
State and local taxes	(3,186		)	(2,583		)	(2,317		)
	$	(6,785	)	$	(5,606	)	$	(5,149	)
Deferred:
Federal	$	(1,495	)	$	6,249		$	(75,928	)
Foreign	7,321			1,290			1,631
State and local taxes	7,585			(2,730		)	(280		)
	13,411			4,809			(74,577		)
	$	6,626		$	(797	)	$	(79,726	)

Reconciliation of income tax rate

The reconciliation between the United States federal statutory rate of 21% for the year ended December 31, 2019 and 2018, and 35% for the years ended December 31, 2017, respectively, to the Company's effective rates are as follows:

	For the years ended December 31,
	2019		2018		2017
U.S. Federal statutory tax rate	21	%	21	%	35	%
Statutory permanent items	(3	)%	3	%	9	%
Effect of the Tax Cuts and Jobs Act	—	%	—	%	152	%
Equity-based compensation	19	%	(43	)%	(24	)%
Acquisition costs	—	%	4	%	—	%
Officers' compensation	(7	)%	3	%	1	%
Interest	(10	)%	1	%	—	%
State and local taxes, net of federal benefit	13	%	12	%	5	%
International tax (reflects effect of losses for which tax benefit not realized)	(9	)%	4	%	(4	)%
Uncertain tax positions	2	%	2	%	—	%
Tax credits	1	%	(2	)%	(2	)%
Valuation reserve for income taxes and other	—	%	—	%	(3	)%
Tax rate change	—	%	—	%	3	%
Other	(2	)%	(3	)%	2	%
Effective tax rate	25	%	2	%	174	%

Components of deferred tax assets and liabilities

The temporary differences which gave rise to the Company's net deferred tax assets consisted of the following:

	December 31, 2019			December 31, 2018
Assets and liabilities:
Accounts receivable and inventory allowances	$	1,044		$	839
Deferred rent	1,833			1,212
Acquired intangible assets and property and equipment	(35,524		)	(56,801		)
Accrued expenses	7,964			7,344
Research and development	1,170			991
Stock option compensation	17,979			14,741
Capital leases	—			(38		)
Cumulative translation adjustments	40			170
Deferred revenue	7,471			5,355
Derivatives	3			142
Prepaid expense	(15,569		)	(13,312		)
Convertible debt and capped call	(7,934		)	—
Net operating loss carryforwards	149,848			165,732
	128,325			126,375
Valuation allowance	(19,978		)	(23,815		)
Deferred tax assets, net, non-current	$	108,347		$	102,560

Schedule of Unrecognized Tax Benefits Roll Forward

Uncertain tax benefits

The Company had uncertain tax benefits of $914 and $1,107 as of December 31, 2019 and 2018, respectively. The Company recognizes interest and penalties related to uncertain tax benefits in income tax expense. The Company incurred interest expense or penalties of $60, $68, and $61 for the years ended December 31, 2019, 2018, and 2017, respectively. 

The following table reconciles the total amounts of uncertain tax benefits:

	As of December 31,
	2019			2018
Balance as of January 1	$	1,107		1,086
Increase due to current year positions	155			1,107
Decrease due to prior year positions	(243		)	(1,086		)
Decrease due to settlements and payments	(86		)	—
Decrease due to lapse of applicable statute of limitations	(71		)	—
Increase due to foreign currency fluctuation	52			—
Uncertain tax benefits as of December 31	$	914		$	1,107