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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Goodwill	$ 495,679,000us-gaap_Goodwill	$ 369,312,000us-gaap_Goodwill	$ 370,143,000us-gaap_Goodwill
Scenario, Previously Reported [Member] \| Customer Relationships [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets			44,413,000
Scenario, Previously Reported [Member] \| Trade Names [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets			11,901,000
Scenario, Previously Reported [Member] \| Noncompete Agreements [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets			313,000
Scenario, Previously Reported [Member] \| Technology-Based Intangible Assets [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets			666,000
Scenario, Previously Reported [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Equipment and leasehold improvements			850,000
Goodwill			60,373,000
Net deferred tax liability associated with step-up in book basis			(9,610,000)
Assets acquired and liabilities assumed, net			269,000
Totals			109,175,000
Scenario, Adjustment [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Goodwill			5,606,000
Net deferred tax liability associated with step-up in book basis			(5,836,000)
Assets acquired and liabilities assumed, net			580,000
Totals	373,000	350,000	350,000
Customer Relationships [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets		44,413,000
Trade Names [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets		11,901,000
Noncompete Agreements [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets		313,000
Technology-Based Intangible Assets [Member] \| 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Intangible Assets		666,000
2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) - Preliminary Allocation of Purchase Price, 2012 [Line Items]
Equipment and leasehold improvements		850,000
Goodwill		65,979,000
Net deferred tax liability associated with step-up in book basis		(15,446,000)
Assets acquired and liabilities assumed, net		849,000
Totals		$ 109,525,000	$ 109,500,000