Acquisition (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		0 Months Ended	1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Feb. 25, 2015	Mar. 31, 2015	Dec. 31, 2014
Assets Acquired and Liabilities Assumed [Abstract]
Goodwill	$ 267,263			$ 267,263	$ 214,374
Recognized acquisition costs expensed during current period	351
Revenues	54,403	50,903
Net Loss	17,695	325
Amortization expense related to acquired intangible assets	2,939	3,272
Business Acquisition, Pro Forma Information [Abstract]
Deferred tax asset valuation reserve release	18,393
Series A Preferred Stock [Member]
Business Acquisition, Pro Forma Information [Abstract]
Dividend payable annual rate (in hundredths)	8.50%
Healthcare [Member]
Assets Acquired and Liabilities Assumed [Abstract]
Goodwill	247,004			247,004	194,115
DR Systems, Inc. [Member]
Business Acquisition [Line Items]
Interest acquired (in hundredths)			91.50%
Cash consideration			76,514
Assets Acquired and Liabilities Assumed [Abstract]
Cash			13,455
Other tangible assets			4,773
Deferred revenue			(11,196)
Deferred tax liabilities			(18,817)
Liabilities assumed			(4,446)
Fair value of assets acquired and liabilities assumed			83,618
Less noncontrolling interest			7,104
Total consideration			76,514
Revenues				2,824
Net Loss				885
Loss on restructuring charges				645
Amortization expense related to acquired intangible assets				388
Business Acquisition, Pro Forma Information [Abstract]
Net sales	61,031	60,446
Net income (loss) attributable to common shareholders of Merge	(1,858)	13,369
Basic (in dollars per share)	$ (0.02)	$ 0.13
Diluted (in dollars per share)	$ (0.02)	$ 0.13
Noncontrolling interest (in hunderedths)			8.50%
DR Systems, Inc. [Member] | Series A Preferred Stock [Member]
Business Acquisition, Pro Forma Information [Abstract]
Dividend payable annual rate (in hundredths)	8.50%
Deferred tax asset valuation reserve release	18,393
Dividend equivalents related to issuance of Preferred Stock	4,915
DR Systems, Inc. [Member] | Customer Relationships [Member]
Assets Acquired and Liabilities Assumed [Abstract]
Finite-Lived Intangibles			17,620
Finite-lived intangible assets, weighted average useful life			12 years
Finite-lived intangible assets, amortization method			Other
DR Systems, Inc. [Member] | Trade Names [Member]
Assets Acquired and Liabilities Assumed [Abstract]
Finite-Lived Intangibles			420
Finite-lived intangible assets, weighted average useful life			2 years
Finite-lived intangible assets, amortization method			Straight-line
DR Systems, Inc. [Member] | Non-competes [Member]
Assets Acquired and Liabilities Assumed [Abstract]
Finite-Lived Intangibles			280
Finite-lived intangible assets, weighted average useful life			4 years
Finite-lived intangible assets, amortization method			Straight-line
DR Systems, Inc. [Member] | Purchased software and technology [Member]
Assets Acquired and Liabilities Assumed [Abstract]
Finite-Lived Intangibles			28,640
Finite-lived intangible assets, weighted average useful life			9 years 9 months 18 days
Finite-lived intangible assets, amortization method			Straight-line
DR Systems, Inc. [Member] | Healthcare [Member]
Assets Acquired and Liabilities Assumed [Abstract]
Goodwill			$ 52,889