Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Revenues	$ 1,349,405	$ 1,345,243	$ 1,507,599
Cost of revenues:
Cost of revenues	884,979	897,783	999,120
Operating expenses:
Selling, general, and administrative expenses	177,474	170,490	174,237
Redomicile-related expenses	0	0	782
Restructuring expenses	8,928	6,586	10,354
Acquisition related expenses	0	3,191	18,917
Depreciation and accretion expense	130,676	126,199	122,036
Amortization of intangible assets	49,261	52,911	57,866
Loss on disposal and impairment of assets	11,653	17,873	227,796
Total operating expenses	377,992	377,250	611,988
Income (loss) from operations	86,434	70,210	(103,509)
Other expenses:
Interest expense, net	26,604	35,429	35,036
Amortization of deferred financing costs and note discount	13,447	14,887	12,574
Redemption costs for early extinguishment of debt	0	6,408	0
Other (income) expense	(18,404)	(627)	3,524
Total other expenses	21,647	56,097	51,134
Income (loss) before income taxes	64,787	14,113	(154,643)
Income tax expense (benefit)	16,522	10,457	(9,292)
Net income (loss)	48,265	3,656	(145,351)
Net loss attributable to noncontrolling interests	(9)	(20)	(1)
Net income (loss) attributable to controlling interests and available to common shareholders	$ 48,274	$ 3,676	$ (145,350)
Net income (loss) per common share – basic (in dollars per share)	$ 1.06	$ 0.08	$ (3.19)
Net income (loss) per common share – diluted (in dollars per share)	$ 1.05	$ 0.08	$ (3.19)
Weighted average shares outstanding – basic (in shares)	45,514,703	45,988,775	45,619,679
Weighted average shares outstanding – diluted (in shares)	46,015,334	46,436,439	45,619,679
ATM operating revenues
Revenues:
Revenues	$ 1,281,106	$ 1,292,930	$ 1,451,372
Cost of revenues:
Cost of revenues	830,359	855,948	951,670
ATM product sales and other revenues
Revenues:
Revenues	68,299	52,313	56,227
Cost of revenues:
Cost of revenues	$ 54,620	$ 41,835	$ 47,450