Description of the business: (Tables)

3 Months Ended

Mar. 31, 2020

Description of the business:

Schedule of diluted weighted average shares

	Three Months Ended	Three Months Ended
	March 31, 2020	March 31, 2019
Weighted average common shares - basic	45,658,565	45,223,157
Dilutive effect of stock options	51,131	26,049
Dilutive effect of restricted stock	681,370	395,030
Weighted average common shares - diluted	46,391,066	45,644,236

Schedule of unvested and anti-dilutive shares

	March 31, 2020	March 31, 2019
Unvested shares of restricted common stock	1,493,821	1,125,298
Anti-dilutive options for common stock	93,070	69,208
Anti-dilutive shares of restricted common stock	11,884	—

Schedule of Stockholder's Deficit

The following details the changes in stockholder’s deficit for the three months ended March 31, 2020 and March 31, 2019 (in thousands except share amounts):

						Accumulated
				Additional		Other				Total
	Common Stock			Paid-in		Comprehensive		Accumulated		Stockholder’s
	Shares	Amount		Capital		Income (Loss)		Deficit		Equity (Deficit)
Balance at December 31, 2018	46,336,499	$	46	$	471,331	$	(10,928)	$	(609,451)	$	(149,002)
Forfeitures of shares granted to employees	(2,184)		—		—		—		—		—
Equity-based compensation	—		—		3,771		—		—		3,771
Foreign currency translation	—		—		—		(1,825)		—		(1,825)
Issuances of common stock	10,500		—		—		—		—		—
Exercises of options	5,619		—		173		—		—		173
Dividends paid	—		—		—		—		(26,565)		(26,565)
Net income	—		—		—		—		9,217		9,217
Balance at March 31, 2019	46,350,434	$	46	$	475,275	$	(12,753)	$	(626,799)	$	(164,231)

						Accumulated
				Additional		Other				Total
	Common Stock			Paid-in		Comprehensive		Accumulated		Stockholder’s
	Shares	Amount		Capital		Income (Loss)		Deficit		Equity (Deficit)
Balance at December 31, 2019	46,840,434	$	47	$	493,178	$	(12,326)	$	(684,578)	$	(203,679)
Cumulative effect adjustment from adoption of ASC 606	—		—		—		—		—		—
Forfeitures of shares granted to employees	(36,308)		—		—		—		—		—
Equity-based compensation	—		—		5,559		—		—		5,559
Foreign currency translation	—		—		—		(3,493)		—		(3,493)
Issuances of common stock	319,750		—		—		—		—		—
Exercises of options	15,493		—		719		—		—		719
Dividends paid	—		—		—		—		(30,557)		(30,557)
Net income	—		—		—		—		9,227		9,227
Balance at March 31, 2020	47,139,369	$	47	$	499,455	$	(15,819)	$	(705,908)	$	(222,225)

Schedule of lease cost

	Three Months			Three Months
	Ended			Ended
	March 31, 2020			March 31, 2019
Finance lease cost
Amortization of right-of-use assets	$	4,762		$	4,971
Interest expense on finance lease liabilities		4,473			4,357
Operating lease cost		4,187			3,295
Total lease costs		12,826			12,623
Other lease information
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from finance leases		(4,780)			(4,494)
Operating cash flows from operating leases		(4,441)			(3,295)
Financing cash flows from finance leases		(6,167)			(3,030)
Right-of-use assets obtained in exchange for new finance lease liabilities		3,164			3,630
Right-of-use assets obtained in exchange for new operating lease liabilities		5,530			316
Weighted-average remaining lease term — finance leases (in years)		14.1			14.7
Weighted-average remaining lease term — operating leases (in years)		20.9			23.1
Weighted average discount rate — finance leases		10.9	%		10.7	%
Weighted average discount rate — operating leases		5.6	%		5.6	%

Schedule of future minimum payments under finance leases

The future minimum payments (principal and interest) under these finance leases are as follows (in thousands):

For the twelve months ending March 31,
2021	$	25,362
2022		24,809
2023		23,375
2024		22,351
2025		22,650
Thereafter		215,042
Total minimum finance lease obligations		333,589
Less—amounts representing interest		(165,643)
Present value of minimum finance lease obligations		167,946
Current maturities		(8,268)
Finance lease obligations, net of current maturities	$	159,678

Schedule of future minimum payments under operating lease agreements

The future minimum payments under these operating lease agreements are as follows (in thousands):

For the twelve months ending March 31,
2021	$	15,421
2022		14,455
2023		13,001
2024		12,097
2025		10,626
Thereafter		95,692
Total minimum operating lease obligations		161,292
Less—amounts representing interest		(62,548)
Present value of minimum operating lease obligations		98,744
Current maturities		(10,409)
Lease obligations, net of current maturities	$	88,335

Schedule of impact on financial statement line items from adopting ASC 606

			Current-period
	Balance at		Provision for		Write offs		Balance at
	December 31,		Expected Credit		Charged Against		March 31,
Description	2019		Losses		Allowance		2020
Allowance for credit losses (deducted from accounts receivable)
Three months ending March 31, 2020	$	1,771	$	1,336	$	(1,131)	$	1,976